Astell&Kern AK HC4 USB Dual DAC
Usage Guide
Computers
Mobile
Microphone
Earphones
Headphones
Connection Guide
USB Type C
3.5mm Single
4.4mm Single
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Item code: AKA17
Inc. VAT (20%) · Ex. VAT: £182.50 Ex. VAT · Inc. VAT (20%):
Lowest price in the last 30 days:
Request to Price Match
If you've seen a better offer for this product, we will endeavour to match it. The competing offer must be on brand-new boxed items, and in stock from another UK Online Authorised Retailer (excluding marketplaces). Price match quotations are valid for 7 days.
SPEAKER CABLES:
A quantity of 2 means you will receive a pair of speaker cables e.g. for your front left and front right speakers. By entering a quantity of 1, you will get a cable for a single speaker e.g. centre speaker and this option also enables you to vary the length (and termination) of your cable for each speaker.
OTHER CABLES:
A quantity of 1 means you will receive a single cable in the case of aerial, satellite, subwoofer, digital coaxial & optical cables and a pair of cables in the case of 2 rca to 2 rca analogue audio cables.
NON-CABLE PRODUCTS:
A quantity of 1 means you will receive 1 of the specified products.
Order before 4pm (Mon–Fri) for same-day dispatch
Astell&Kern AK HC4 USB Dual DAC
The AK HC4 builds upon the success of its predecessors and enhances its design to provide even more perfect sound in various usage scenarios. One of the standout features of this DAC is its small size, which does not compromise on the quality of its sound.
With dual output options of 3.5mm and 4.4mm, the AK HC4 is compatible with a wide range of IEMs and headphones, making it a versatile choice for different listening preferences. The AKM AK4493S DAC ensures true Hi-Fi sound, bringing the level of audio excellence that is synonymous with Astell&Kern's digital audio players to this USB DAC. Additionally, the inclusion of Digital Audio Remaster technology further elevates the listening experience, ensuring every detail of the music is captured and delivered to the listener.
Moreover, the AK HC4 is designed to support iOS devices, adding to its convenience and compatibility with a variety of devices. The interchangeable cable, with both Type-C and Lightning options included, makes it suitable for use with different devices without the need for additional adaptors. The AK HC4 also supports UAC1.0, making it suitable for gaming systems and enhancing the overall audio experience.
Lastly, the AK HC4 has been tested and approved by Roon, a leading platform for music streaming and playback. This further solidifies its status as a top-quality product that delivers exceptional audio performance.
In conclusion, the Astell&Kern AK HC4 USB Dual DAC's compact yet powerful design, compatibility with various devices, and advanced features make it a top choice in the market. Invest in the AK HC4 and experience Hi-Fi sound like never before.
Features
- 3.5mm, 4.4mm Dual Output
- AKM AK4493S
- DAR (Digital Audio Remaster)
- Supports iOS devices
- Interchangeable Cable (Type-C / Lightning Cable Included)
- Supported UAC1.0 (For Gaming System)
- Roon Tested
Sound in ultra-high resolution sound from AKM AK4493s DAC
To achieve the highest audio quality achievable with a USB DAC, the AK HC4 is the first in the USB DAC Cable lineup to incorporate AKM's DAC. AKM's DAC has earned much love when featured in Astell&Kern's digital audio players, but due to the small size of USB DAC Cables and the challenges of amp design, it has been difficult to implement in the USB DAC Cable lineup until now.
The AK4493s DAC from AKM, used in the AK HC4, is further enhanced with improved noise control, lower power design, and ultra-precise amp design technology, delivering exceptionally high-quality Hi-Fi sound. Furthermore, it supports Native DSD256 and up to 32bit/384kHz to handle any high-quality audio source, allowing you to experience the high-grade sound quality that Astell&Kern delivers.
Precision DAC and AMP Design for Hi-Fi Sound
In order to gain stable output power and ultra-high-quality Hi-Fi sound through the Dual Output, AK HC4 introduces an exclusive AMP circuitry that supersedes the standard built-in DAC AMP.
While maintaining a compact form factor 29.5 x 64.5x 14.5mm, we used micro resistors and capacitor parts to achieve a small footprint without compromising performance. Carefully selected ultra-small tantalum capacitors, which are used in AK player products to create a stable system and audio performance by controlling the power fluctuations, are also included to create an optimal audio circuit design. In addition, the output and audio performance are enhanced with Astell&Kern's unique power management technology to minimize current consumption in respect of the connected device.
3.5mm, 4.4mm Dual Output
The AK HC4 features Dual Output with both 3.5mm and 4.4mm connectors, allowing you to use AK HC4 with most Hi-Fi IEMs and headphones without the need for adapters or additional cables.
The 4.4mm Balanced output provides a high output of 3Vrms, maximizing the performance of sensitive headphones and IEMs, while ensuring clear channel separation and minimal noise.
The 3.5mm Unbalanced output is compatible with the majority of existing IEMs and headphones, offering a sufficient output of 2Vrms to fully experience the capabilities of your IEMs.
Digital Audio Remaster Technology for Even More Vivid Original Sound
The AK HC4 is equipped with digital audio remaster (DAR) technology, which was only applicable to the latest digital audio players from Astell&Kern. DAR technology is developed to upsample the sample rate of the sound source being played to go beyond the limits of the source format. The high sample rate allows more refined play and offers delicate and analog-like original sound, helping you to enjoy the richness of the original sound, subtle differences in the nuance of the music and rich sounds at a higher level.
In addition, the DAR slide key on the side of the product gives you a more intuitive selection of DAR options.
|
DAR Option
|
Maximum Conversion Rate |
|
PCM
|
44.1kHz range PCM will be converted to 352.8kHz for playback 48kHz range PCM will be converted to 384kHz for playback |
|
DSD |
DSD files below DSD256 will be upconverted to DSD256 for playback
|
High Compatibility and Simultaneous Support for UAC 1.0 & 2.0 for Gaming
While modern smartphones, tablets, and PCs support UAC 2.0 connections, many gaming devices still exclusively support UAC 1.0 connections. To cater to both scenarios, AK HC4 ensures compatibility by supporting both UAC 2.0 and UAC 1.0 connections for cross-platform quality sound experiences. Connect AK HC4 to your gaming device such as PlayStation and Switch, and enjoy low latency and enhanced sound for an immersive gaming experience.
Noise-Free Rear Output Structure
AK HC4 incorporates a rear audio output design to minimize noise. Most USB DAC products have the DAC positioned in the USB terminal that is connected directly to the device to process and output audio.
However, with the HC4, digital signals from the device go through the dual shielded cable to the audio circuit before being converted to an analog signal by the DAC. By processing the digital signal after, the result is superior, noise-free sound compared to other USB DAC products.
Dual Noise Shielded Cable
To ensure optimal usability across both Android and iOS devices without the need for additional adapters, AK HC4 features an interchangeable cable that readily supports Type-C and Lightning connections.
The AK HC4 features a dual shielded cable to minimize noise and deliver a more vivid, original sound. The copper core wire is coated with tin to prevent corrosion and strengthen tensile force for enhanced durability.
Additionally, the entire cable is wrapped in an aluminum film to block noise with an extra layer of shielding around the power cable to further minimize noise, the biggest issue in audio, then the tin-coated copper wire is woven to minimize noise interference to sound. Finished with a fabric jacket on top of the TPE jacket, the cable features enhanced durability and usability with perfect aesthetic appeal.
LED for real-time indication
AK HC4 has an LED indicator located on the front, that displays song details and
USB Connection.
* Standby : White / PCM : Red / DSD : Blue / UAC1.0 : Green
* When connected to UAC 1.0, the LED is fixed green.
Design
The AK HC4 is small in size, but it inherits Astell&Kern's design philosophy, Light and Shadow, through simple yet delicate design elements.
By adopting a unibody structure, the bonding line is minimized to complete the smooth and clean appearance, and the overall appearance of the product is even more complete. It has a design that can minimize the burden of size caused by simultaneous 3.5mm and 4.4mm Dual Output. In particular, the front edge line is designed to be symmetrical left and right so that the line is gathered in the center, creating a balanced look that naturally focuses the gaze in the center.
The side of the product is designed with concave lines, making it easy and comfortable to use in a form naturally tailored to human hands. In addition, the keys on the sides are either lifted at both ends or divided into dot embossed details, allowing the user to use each function separately only with the sensation of the fingertips.
Precautions When Using the Product
|
Specification
- Model: AK HC4
- Body Colour: Moon Silver
- Body Material: Aluminum
- DAC: AKM AK4493S
- Sample rate
- PCM : 8kHz ~ 384kHz (8/16/24/32bits per Sample)
- DSD Native : DSD64(1bit 2.8MHz), Stereo / DSD128(1bit 5.6MHz), Stereo / DSD256(1bit 11.2MHz), Stereo
- Output Level: Unbalanced 2Vrms / Balanced 3Vrms (Condition No Load)
- Input: USB Type-C (Supports UAC 1.0 and UAC 2.0)
- Output: 3.5mm (Unbalanced), 4.4mm (Balanced, Only 5-pole supported)
- Dimensions: 29.5mm[W] x 64.5mm[H] x 14.5mm[D]
- Weight: About 1.09oz (31g)
- Frequency Response
- ±0.062dB (Condition : 20Hz~20kHz) Unbalanced │ ±0.063dB (Condition : 20Hz~20kHz) Balanced
- ±0.066dB (Condition : 20Hz~70kHz) Unbalanced │ ±0.067dB (Condition : 20Hz~70kHz) Balanced
- Signal to Noise Ratio: 118dB @ 1kHz, Unbalanced │ 118dB @ 1kHz, Balanced
- Crosstalk: -134dB @ 1kHz, Unbalanced │ -136dB @ 1kHz, Balanced
- THD+N: 0.0005% @ 1kHz, Unbalanced │ 0.0009% @ 1kHz, Balanced
- IMD SMPTE: 0.0005% 800Hz 10kHz (4:1) Unbalanced │ 0.0004% 800Hz 10kHz (4:1) Balanced
- Output Impedance: Unbalanced Out 3.5mm (0.9ohm) │ Balanced Out 4.4mm(1.6ohm)
About Astell&Kern
Astell&Kern is the ultimate digital music source that brings you Mastering Quality Sound or MQS. Astell means ‘Stars’ in Latin and Kern means ‘Center’ in German. We believe Astell&Kern is the center of music.
Today, original music performances can be captured in digital almost exactly as they were performed due to new, advanced recording technology currently available. However, these high quality recordings are mainly listened to through inferior sound formats, such as MP3 or through streaming services. With the debut of the MP3 format, music lovers sacrificed sound quality for the convenience of being able to carry their music collection wherever they went. Because the MP3 format heavily compresses files for the sake of convenience, the vocals and instruments you hear are only an inferior version of the original. The soundstage and the ambience of the original performance often disappears when listening to compressed MP3 music. After pondering these issues, Astell&Kern was our solution to poor sound quality for the sake of portability, and our way in reviving the original sound quality of music, MQS, for music artists, recording engineers, and professionals.
Astell&Kern's pursuit is to provide natural and original sound without distortion. It showcases the presence of the original recording with miniscule details you may not have noticed from other music systems, while playing back high-resolution music bit by bit, exactly as it was recorded. The ability to play back the exact recording of any live performance is what Astell&Kern is known for.
The power of true sound from Astell&Kern can now be experienced and has been part of many famous audio exhibitions around the world. Astell&Kern is now admired by music lovers from many countries, including the USA, China, Japan, UK, France, and many more around the world.
About Astell&Kern
Korean maker of portable digital audio players, with a catalogue that also covers earphones, headphones and speakers.
Astell&Kern is a Seoul-based company and part of Dreamus, formerly iRiver. Its core product is the digital audio player, a portable unit that holds your music library and drives headphones or earphones directly. The catalogue also includes earphones, headphones, speakers, cases and other accessories for your player.
Read more about Astell&Kern Show less
Players are grouped into named series
A&ultima is the flagship line, with the SP4000 and SP3000 among its models. A&futura includes the SE300 and A&norma includes the SR35. The PD series, which includes the PD20, and the KANN line, which includes the KANN ULTRA, are separate families. Each series sits at a different level of price and specification.
High-resolution files are supported across the range
Astell&Kern lists playback of 24-bit files at sample rates from 44.1kHz to 192kHz, and supports MQS, its Mastering Quality Sound label. If you want to play DSD or sample rates beyond that, check the specification of the model you are considering before you buy.
Earphones, speakers and cases sit alongside the players
Astell&Kern also makes earphones, headphones, speakers and accessories, including cases. It has worked with VOLK Audio on the STELLA in-ear monitors. If you are buying a player, the catalogue lets you choose the earphones and the case from the same maker.
Why we stock Astell&Kern
We had DACs but nothing portable, so we went looking. Astell&Kern do one thing and have done it longer than almost anyone, with a range that runs from a first serious player up to real money. If you have invested in in-ear monitors and are still feeding them from a phone, this is the gap they fill.
Specification
- Model: AK HC4
- Body Colour: Moon Silver
- Body Material: Aluminum
- DAC: AKM AK4493S
- Sample rate
- PCM : 8kHz ~ 384kHz (8/16/24/32bits per Sample)
- DSD Native : DSD64(1bit 2.8MHz), Stereo / DSD128(1bit 5.6MHz), Stereo / DSD256(1bit 11.2MHz), Stereo
- Output Level: Unbalanced 2Vrms / Balanced 3Vrms (Condition No Load)
- Input: USB Type-C (Supports UAC 1.0 and UAC 2.0)
- Output: 3.5mm (Unbalanced), 4.4mm (Balanced, Only 5-pole supported)
- Dimensions: 29.5mm[W] x 64.5mm[H] x 14.5mm[D]
- Weight: About 1.09oz (31g)
- Frequency Response
- ±0.062dB (Condition : 20Hz~20kHz) Unbalanced │ ±0.063dB (Condition : 20Hz~20kHz) Balanced
- ±0.066dB (Condition : 20Hz~70kHz) Unbalanced │ ±0.067dB (Condition : 20Hz~70kHz) Balanced
- Signal to Noise Ratio: 118dB @ 1kHz, Unbalanced │ 118dB @ 1kHz, Balanced
- Crosstalk: -134dB @ 1kHz, Unbalanced │ -136dB @ 1kHz, Balanced
- THD+N: 0.0005% @ 1kHz, Unbalanced │ 0.0009% @ 1kHz, Balanced
- IMD SMPTE: 0.0005% 800Hz 10kHz (4:1) Unbalanced │ 0.0004% 800Hz 10kHz (4:1) Balanced
- Output Impedance: Unbalanced Out 3.5mm (0.9ohm) │ Balanced Out 4.4mm(1.6ohm)
We use Royal Mail 1st Class services for our Standard Delivery.
Orders received before 4.30 pm Monday to Friday are usually dispatched the same day by FIRST CLASS post (unless premium postal or timed courier services are selected), subject to stock availability. This does not apply to custom-length cables and speaker cables as these require a longer timescale to terminate. This also excludes all cables selected for the burn-in service. Please note, we do not process orders on national holidays in the UK. Over 98% of our orders are delivered the next working day including Saturdays.
Standard delivery is usually within 2 working days, although 98% of all orders are delivered the next working day including Saturdays. In extreme cases, such as delivery to the Highlands and Islands, this may take 3 days.
All items are fully insured and come with an invoice from Future Shop. We use the Royal Mail for delivery of small packages and DPD Local or DHL for items that weigh over 2KG. Items over 2KG are fully insured and will usually be delivered within 48 hours of placing your order subject to stock availability. For international orders, we use FedEx or DHL services where customers have selected this option.
Please note, special orders for non-standard cable lengths may be subject to longer deliver time-scales. This may vary from manufacturer to manufacturer.
We offer 'Free delivery on orders over £99' subject to the following terms & conditions:
- Applies only to orders with £99 or more of items (including VAT at the UK rate), at Future Shop
- Free Delivery on orders over £99 utilises Royal Mail First Class postal service for items weighing under 2KG. For items weighing over 2KG, we use DPD or DHL next working day services which deliver from 9.00am to 6pm within mainland UK (excludes Royal Mail Special Delivery Services and timed next day delivery services by DPD or DHL).
- Applies only to deliveries to addresses within mainland UK and Northern Ireland addresses. Applies only to orders that are to be delivered to a single Mainland UK delivery address.
- You will not be eligible for free delivery on your order if any items are cancelled or returned for a refund, bringing the total order amount below £99. Where items are returned, the refund due will be the cost of the item less any postage costs.
- We reserve the right to change or discontinue 'Free delivery on orders over £99 promotion at any time.
- FREE DELIVERY FOR ORDERS OVER £99 OFFER DOES NOT APPLY TO TRADE CUSTOMERS.
UK Postal & Delivery Charges - FIRST CLASS
Free UK delivery on all orders over £99*
| Weight | Price (FIRST CLASS UK POSTAGE) |
| 0g - 1000g | £3.95 |
| 1000g - 1400g | £4.95 |
| 1400g - 1800g | £5.95 |
| 1800g - 2000g | £6.95 |
| 2000g - 3000g | £8.95 |
* Free Delivery on orders over £99 utilises Royal Mail First Class postal service for items weighing under 2KG. For items weighing over 2KG, we use DPD or DHL next working day services which deliver from 9.00am to 6pm within mainland UK.
Free Delivery for orders over £99 excludes Royal Mail Special Delivery Services and timed next day delivery services by DPD or DHL.
Special Delivery UK - Guaranteed Next Working Day
We have 99.9% of the UK covered With Royal Mail Next Day Special Delivery. We guarantee delivery to most UK addresses by 1pm the next working day. This includes Northern Ireland, Jersey and Guernsey. Some places take longer to deliver to but we still guarantee delivery within three working days by 5.30 PM.
Please note, Royal Mail Special Delivery for next working day may not be possible where non-standard cable lengths are ordered. If this is the case, the item will be shipped via The Royal Mail Special Delivery service as soon as the cable is custom made.
For orders weighing over 2KG, we reserve the right to ship items using Next Day Pre-Noon Courier Services where Royal Mail Special Delivery option has been selected.
Channel Islands & Northern Ireland
We accept orders from all Channel Islands including Alderney, Jersey, Guernsey and Sark. Unless you select a premium service, Items weighing under 2KG are delivered using our standard UK delivery option above. For items weighing over 2KG, a surcharge may be applied for all deliveries to the Channel Islands as well as Northern Ireland.
European Countries
Deliveries to EU member states are not subject to 20% VAT after December 31st 2020 and therefore the 20% VAT on items is automatically deducted when you log-in, register or proceed to place an order.
The customer will be liable for the VAT at the local VAT rate, duty on the import and the brokerage service fee if applicable. This may need to be paid in advance to your local Customs & Excise office or the delivery company before your order can be delivered.
We offer the following shipping services:
- Royal Mail First Class International Airmail Services - Items are usually delivered within 3 to 5 working days
- Royal Mail Standard International Mail Services - Items are usually delivered within 7-10 working days
- DHL Express International - Items are usually delivered within 24 to 48 hours. DHL orders must be received by 3:30pm for next day service to most destinations in Europe
- Federal Express International Priority - Items are usually delivered within 24 to 48 hours. FedEx orders must be received by 3.00pm for next day service to most destinations in Europe
- Federal Express International Economy - Item are usually delivered within 48 to 72 hours
We reserve the right to change your shipping method without notification if you select a method that we cannot use for your shipment (for instance, we cannot ship via postal services for items over 2 Kg to International destinations). If we need to change your shipping method, we will choose the least expensive shipping method for your order.
Worldwide - Excluding UK & Europe
Deliveries outside of the UK are not subject to 20% VAT and so the 20% tax on items is automatically deducted when you log-in, register or proceed to place an order.
If applicable, the customer will be liable for the taxes at the local tax rate, duty on the import and the brokerage service fee. This may need to be paid in advance to your local Customs & Excise office or the delivery company before your order can be delivered.
We offer the following shipping services:
- Royal Mail First Class International Airmail Services - Items are usually delivered within 7 to 10 working days
- Royal Mail Standard International Mail Services - Items are usually delivered within 15 working days
- DHL Express International - Items are usually delivered within 24 to 48 hours. DHL orders must be received by 3:30pm for next day service to most destinations in Europe
- Federal Express International Priority - Items are usually delivered within 48 hours. FedEx orders must be received by 3.00pm in order to ship items the same day, subject to stock availability
- Where the actual weight of the package significantly exceeds the shipping cost charged on orders, we may write to you for an additional shipping charge. For larger orders, items may be shipped in multiple packets at our discretion
We reserve the right to change your shipping method without notification if you select a method that we cannot use for your shipment (for instance, we cannot ship via postal services for items over 2 Kg to International destinations). If we need to change your shipping method, we will choose the least expensive shipping method for your order.
Frequently Asked Questions
Astell&Kern AK HC4 USB Dual DAC
The AK HC4 builds upon the success of its predecessors and enhances its design to provide even more perfect sound in various usage scenarios. One of the standout features of this DAC is its small size, which does not compromise on the quality of its sound.
With dual output options of 3.5mm and 4.4mm, the AK HC4 is compatible with a wide range of IEMs and headphones, making it a versatile choice for different listening preferences. The AKM AK4493S DAC ensures true Hi-Fi sound, bringing the level of audio excellence that is synonymous with Astell&Kern's digital audio players to this USB DAC. Additionally, the inclusion of Digital Audio Remaster technology further elevates the listening experience, ensuring every detail of the music is captured and delivered to the listener.
Moreover, the AK HC4 is designed to support iOS devices, adding to its convenience and compatibility with a variety of devices. The interchangeable cable, with both Type-C and Lightning options included, makes it suitable for use with different devices without the need for additional adaptors. The AK HC4 also supports UAC1.0, making it suitable for gaming systems and enhancing the overall audio experience.
Lastly, the AK HC4 has been tested and approved by Roon, a leading platform for music streaming and playback. This further solidifies its status as a top-quality product that delivers exceptional audio performance.
In conclusion, the Astell&Kern AK HC4 USB Dual DAC's compact yet powerful design, compatibility with various devices, and advanced features make it a top choice in the market. Invest in the AK HC4 and experience Hi-Fi sound like never before.
Features
- 3.5mm, 4.4mm Dual Output
- AKM AK4493S
- DAR (Digital Audio Remaster)
- Supports iOS devices
- Interchangeable Cable (Type-C / Lightning Cable Included)
- Supported UAC1.0 (For Gaming System)
- Roon Tested
Sound in ultra-high resolution sound from AKM AK4493s DAC
To achieve the highest audio quality achievable with a USB DAC, the AK HC4 is the first in the USB DAC Cable lineup to incorporate AKM's DAC. AKM's DAC has earned much love when featured in Astell&Kern's digital audio players, but due to the small size of USB DAC Cables and the challenges of amp design, it has been difficult to implement in the USB DAC Cable lineup until now.
The AK4493s DAC from AKM, used in the AK HC4, is further enhanced with improved noise control, lower power design, and ultra-precise amp design technology, delivering exceptionally high-quality Hi-Fi sound. Furthermore, it supports Native DSD256 and up to 32bit/384kHz to handle any high-quality audio source, allowing you to experience the high-grade sound quality that Astell&Kern delivers.
Precision DAC and AMP Design for Hi-Fi Sound
In order to gain stable output power and ultra-high-quality Hi-Fi sound through the Dual Output, AK HC4 introduces an exclusive AMP circuitry that supersedes the standard built-in DAC AMP.
While maintaining a compact form factor 29.5 x 64.5x 14.5mm, we used micro resistors and capacitor parts to achieve a small footprint without compromising performance. Carefully selected ultra-small tantalum capacitors, which are used in AK player products to create a stable system and audio performance by controlling the power fluctuations, are also included to create an optimal audio circuit design. In addition, the output and audio performance are enhanced with Astell&Kern's unique power management technology to minimize current consumption in respect of the connected device.
3.5mm, 4.4mm Dual Output
The AK HC4 features Dual Output with both 3.5mm and 4.4mm connectors, allowing you to use AK HC4 with most Hi-Fi IEMs and headphones without the need for adapters or additional cables.
The 4.4mm Balanced output provides a high output of 3Vrms, maximizing the performance of sensitive headphones and IEMs, while ensuring clear channel separation and minimal noise.
The 3.5mm Unbalanced output is compatible with the majority of existing IEMs and headphones, offering a sufficient output of 2Vrms to fully experience the capabilities of your IEMs.
Digital Audio Remaster Technology for Even More Vivid Original Sound
The AK HC4 is equipped with digital audio remaster (DAR) technology, which was only applicable to the latest digital audio players from Astell&Kern. DAR technology is developed to upsample the sample rate of the sound source being played to go beyond the limits of the source format. The high sample rate allows more refined play and offers delicate and analog-like original sound, helping you to enjoy the richness of the original sound, subtle differences in the nuance of the music and rich sounds at a higher level.
In addition, the DAR slide key on the side of the product gives you a more intuitive selection of DAR options.
|
DAR Option
|
Maximum Conversion Rate |
|
PCM
|
44.1kHz range PCM will be converted to 352.8kHz for playback 48kHz range PCM will be converted to 384kHz for playback |
|
DSD |
DSD files below DSD256 will be upconverted to DSD256 for playback
|
High Compatibility and Simultaneous Support for UAC 1.0 & 2.0 for Gaming
While modern smartphones, tablets, and PCs support UAC 2.0 connections, many gaming devices still exclusively support UAC 1.0 connections. To cater to both scenarios, AK HC4 ensures compatibility by supporting both UAC 2.0 and UAC 1.0 connections for cross-platform quality sound experiences. Connect AK HC4 to your gaming device such as PlayStation and Switch, and enjoy low latency and enhanced sound for an immersive gaming experience.
Noise-Free Rear Output Structure
AK HC4 incorporates a rear audio output design to minimize noise. Most USB DAC products have the DAC positioned in the USB terminal that is connected directly to the device to process and output audio.
However, with the HC4, digital signals from the device go through the dual shielded cable to the audio circuit before being converted to an analog signal by the DAC. By processing the digital signal after, the result is superior, noise-free sound compared to other USB DAC products.
Dual Noise Shielded Cable
To ensure optimal usability across both Android and iOS devices without the need for additional adapters, AK HC4 features an interchangeable cable that readily supports Type-C and Lightning connections.
The AK HC4 features a dual shielded cable to minimize noise and deliver a more vivid, original sound. The copper core wire is coated with tin to prevent corrosion and strengthen tensile force for enhanced durability.
Additionally, the entire cable is wrapped in an aluminum film to block noise with an extra layer of shielding around the power cable to further minimize noise, the biggest issue in audio, then the tin-coated copper wire is woven to minimize noise interference to sound. Finished with a fabric jacket on top of the TPE jacket, the cable features enhanced durability and usability with perfect aesthetic appeal.
LED for real-time indication
AK HC4 has an LED indicator located on the front, that displays song details and
USB Connection.
* Standby : White / PCM : Red / DSD : Blue / UAC1.0 : Green
* When connected to UAC 1.0, the LED is fixed green.
Design
The AK HC4 is small in size, but it inherits Astell&Kern's design philosophy, Light and Shadow, through simple yet delicate design elements.
By adopting a unibody structure, the bonding line is minimized to complete the smooth and clean appearance, and the overall appearance of the product is even more complete. It has a design that can minimize the burden of size caused by simultaneous 3.5mm and 4.4mm Dual Output. In particular, the front edge line is designed to be symmetrical left and right so that the line is gathered in the center, creating a balanced look that naturally focuses the gaze in the center.
The side of the product is designed with concave lines, making it easy and comfortable to use in a form naturally tailored to human hands. In addition, the keys on the sides are either lifted at both ends or divided into dot embossed details, allowing the user to use each function separately only with the sensation of the fingertips.
Precautions When Using the Product
|
Specification
- Model: AK HC4
- Body Colour: Moon Silver
- Body Material: Aluminum
- DAC: AKM AK4493S
- Sample rate
- PCM : 8kHz ~ 384kHz (8/16/24/32bits per Sample)
- DSD Native : DSD64(1bit 2.8MHz), Stereo / DSD128(1bit 5.6MHz), Stereo / DSD256(1bit 11.2MHz), Stereo
- Output Level: Unbalanced 2Vrms / Balanced 3Vrms (Condition No Load)
- Input: USB Type-C (Supports UAC 1.0 and UAC 2.0)
- Output: 3.5mm (Unbalanced), 4.4mm (Balanced, Only 5-pole supported)
- Dimensions: 29.5mm[W] x 64.5mm[H] x 14.5mm[D]
- Weight: About 1.09oz (31g)
- Frequency Response
- ±0.062dB (Condition : 20Hz~20kHz) Unbalanced │ ±0.063dB (Condition : 20Hz~20kHz) Balanced
- ±0.066dB (Condition : 20Hz~70kHz) Unbalanced │ ±0.067dB (Condition : 20Hz~70kHz) Balanced
- Signal to Noise Ratio: 118dB @ 1kHz, Unbalanced │ 118dB @ 1kHz, Balanced
- Crosstalk: -134dB @ 1kHz, Unbalanced │ -136dB @ 1kHz, Balanced
- THD+N: 0.0005% @ 1kHz, Unbalanced │ 0.0009% @ 1kHz, Balanced
- IMD SMPTE: 0.0005% 800Hz 10kHz (4:1) Unbalanced │ 0.0004% 800Hz 10kHz (4:1) Balanced
- Output Impedance: Unbalanced Out 3.5mm (0.9ohm) │ Balanced Out 4.4mm(1.6ohm)
About Astell&Kern
Astell&Kern is the ultimate digital music source that brings you Mastering Quality Sound or MQS. Astell means ‘Stars’ in Latin and Kern means ‘Center’ in German. We believe Astell&Kern is the center of music.
Today, original music performances can be captured in digital almost exactly as they were performed due to new, advanced recording technology currently available. However, these high quality recordings are mainly listened to through inferior sound formats, such as MP3 or through streaming services. With the debut of the MP3 format, music lovers sacrificed sound quality for the convenience of being able to carry their music collection wherever they went. Because the MP3 format heavily compresses files for the sake of convenience, the vocals and instruments you hear are only an inferior version of the original. The soundstage and the ambience of the original performance often disappears when listening to compressed MP3 music. After pondering these issues, Astell&Kern was our solution to poor sound quality for the sake of portability, and our way in reviving the original sound quality of music, MQS, for music artists, recording engineers, and professionals.
Astell&Kern's pursuit is to provide natural and original sound without distortion. It showcases the presence of the original recording with miniscule details you may not have noticed from other music systems, while playing back high-resolution music bit by bit, exactly as it was recorded. The ability to play back the exact recording of any live performance is what Astell&Kern is known for.
The power of true sound from Astell&Kern can now be experienced and has been part of many famous audio exhibitions around the world. Astell&Kern is now admired by music lovers from many countries, including the USA, China, Japan, UK, France, and many more around the world.
About Astell&Kern
Korean maker of portable digital audio players, with a catalogue that also covers earphones, headphones and speakers.
Astell&Kern is a Seoul-based company and part of Dreamus, formerly iRiver. Its core product is the digital audio player, a portable unit that holds your music library and drives headphones or earphones directly. The catalogue also includes earphones, headphones, speakers, cases and other accessories for your player.
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Players are grouped into named series
A&ultima is the flagship line, with the SP4000 and SP3000 among its models. A&futura includes the SE300 and A&norma includes the SR35. The PD series, which includes the PD20, and the KANN line, which includes the KANN ULTRA, are separate families. Each series sits at a different level of price and specification.
High-resolution files are supported across the range
Astell&Kern lists playback of 24-bit files at sample rates from 44.1kHz to 192kHz, and supports MQS, its Mastering Quality Sound label. If you want to play DSD or sample rates beyond that, check the specification of the model you are considering before you buy.
Earphones, speakers and cases sit alongside the players
Astell&Kern also makes earphones, headphones, speakers and accessories, including cases. It has worked with VOLK Audio on the STELLA in-ear monitors. If you are buying a player, the catalogue lets you choose the earphones and the case from the same maker.
Why we stock Astell&Kern
We had DACs but nothing portable, so we went looking. Astell&Kern do one thing and have done it longer than almost anyone, with a range that runs from a first serious player up to real money. If you have invested in in-ear monitors and are still feeding them from a phone, this is the gap they fill.
Specification
- Model: AK HC4
- Body Colour: Moon Silver
- Body Material: Aluminum
- DAC: AKM AK4493S
- Sample rate
- PCM : 8kHz ~ 384kHz (8/16/24/32bits per Sample)
- DSD Native : DSD64(1bit 2.8MHz), Stereo / DSD128(1bit 5.6MHz), Stereo / DSD256(1bit 11.2MHz), Stereo
- Output Level: Unbalanced 2Vrms / Balanced 3Vrms (Condition No Load)
- Input: USB Type-C (Supports UAC 1.0 and UAC 2.0)
- Output: 3.5mm (Unbalanced), 4.4mm (Balanced, Only 5-pole supported)
- Dimensions: 29.5mm[W] x 64.5mm[H] x 14.5mm[D]
- Weight: About 1.09oz (31g)
- Frequency Response
- ±0.062dB (Condition : 20Hz~20kHz) Unbalanced │ ±0.063dB (Condition : 20Hz~20kHz) Balanced
- ±0.066dB (Condition : 20Hz~70kHz) Unbalanced │ ±0.067dB (Condition : 20Hz~70kHz) Balanced
- Signal to Noise Ratio: 118dB @ 1kHz, Unbalanced │ 118dB @ 1kHz, Balanced
- Crosstalk: -134dB @ 1kHz, Unbalanced │ -136dB @ 1kHz, Balanced
- THD+N: 0.0005% @ 1kHz, Unbalanced │ 0.0009% @ 1kHz, Balanced
- IMD SMPTE: 0.0005% 800Hz 10kHz (4:1) Unbalanced │ 0.0004% 800Hz 10kHz (4:1) Balanced
- Output Impedance: Unbalanced Out 3.5mm (0.9ohm) │ Balanced Out 4.4mm(1.6ohm)
We use Royal Mail 1st Class services for our Standard Delivery.
Orders received before 4.30 pm Monday to Friday are usually dispatched the same day by FIRST CLASS post (unless premium postal or timed courier services are selected), subject to stock availability. This does not apply to custom-length cables and speaker cables as these require a longer timescale to terminate. This also excludes all cables selected for the burn-in service. Please note, we do not process orders on national holidays in the UK. Over 98% of our orders are delivered the next working day including Saturdays.
Standard delivery is usually within 2 working days, although 98% of all orders are delivered the next working day including Saturdays. In extreme cases, such as delivery to the Highlands and Islands, this may take 3 days.
All items are fully insured and come with an invoice from Future Shop. We use the Royal Mail for delivery of small packages and DPD Local or DHL for items that weigh over 2KG. Items over 2KG are fully insured and will usually be delivered within 48 hours of placing your order subject to stock availability. For international orders, we use FedEx or DHL services where customers have selected this option.
Please note, special orders for non-standard cable lengths may be subject to longer deliver time-scales. This may vary from manufacturer to manufacturer.
We offer 'Free delivery on orders over £99' subject to the following terms & conditions:
- Applies only to orders with £99 or more of items (including VAT at the UK rate), at Future Shop
- Free Delivery on orders over £99 utilises Royal Mail First Class postal service for items weighing under 2KG. For items weighing over 2KG, we use DPD or DHL next working day services which deliver from 9.00am to 6pm within mainland UK (excludes Royal Mail Special Delivery Services and timed next day delivery services by DPD or DHL).
- Applies only to deliveries to addresses within mainland UK and Northern Ireland addresses. Applies only to orders that are to be delivered to a single Mainland UK delivery address.
- You will not be eligible for free delivery on your order if any items are cancelled or returned for a refund, bringing the total order amount below £99. Where items are returned, the refund due will be the cost of the item less any postage costs.
- We reserve the right to change or discontinue 'Free delivery on orders over £99 promotion at any time.
- FREE DELIVERY FOR ORDERS OVER £99 OFFER DOES NOT APPLY TO TRADE CUSTOMERS.
UK Postal & Delivery Charges - FIRST CLASS
Free UK delivery on all orders over £99*
| Weight | Price (FIRST CLASS UK POSTAGE) |
| 0g - 1000g | £3.95 |
| 1000g - 1400g | £4.95 |
| 1400g - 1800g | £5.95 |
| 1800g - 2000g | £6.95 |
| 2000g - 3000g | £8.95 |
* Free Delivery on orders over £99 utilises Royal Mail First Class postal service for items weighing under 2KG. For items weighing over 2KG, we use DPD or DHL next working day services which deliver from 9.00am to 6pm within mainland UK.
Free Delivery for orders over £99 excludes Royal Mail Special Delivery Services and timed next day delivery services by DPD or DHL.
Special Delivery UK - Guaranteed Next Working Day
We have 99.9% of the UK covered With Royal Mail Next Day Special Delivery. We guarantee delivery to most UK addresses by 1pm the next working day. This includes Northern Ireland, Jersey and Guernsey. Some places take longer to deliver to but we still guarantee delivery within three working days by 5.30 PM.
Please note, Royal Mail Special Delivery for next working day may not be possible where non-standard cable lengths are ordered. If this is the case, the item will be shipped via The Royal Mail Special Delivery service as soon as the cable is custom made.
For orders weighing over 2KG, we reserve the right to ship items using Next Day Pre-Noon Courier Services where Royal Mail Special Delivery option has been selected.
Channel Islands & Northern Ireland
We accept orders from all Channel Islands including Alderney, Jersey, Guernsey and Sark. Unless you select a premium service, Items weighing under 2KG are delivered using our standard UK delivery option above. For items weighing over 2KG, a surcharge may be applied for all deliveries to the Channel Islands as well as Northern Ireland.
European Countries
Deliveries to EU member states are not subject to 20% VAT after December 31st 2020 and therefore the 20% VAT on items is automatically deducted when you log-in, register or proceed to place an order.
The customer will be liable for the VAT at the local VAT rate, duty on the import and the brokerage service fee if applicable. This may need to be paid in advance to your local Customs & Excise office or the delivery company before your order can be delivered.
We offer the following shipping services:
- Royal Mail First Class International Airmail Services - Items are usually delivered within 3 to 5 working days
- Royal Mail Standard International Mail Services - Items are usually delivered within 7-10 working days
- DHL Express International - Items are usually delivered within 24 to 48 hours. DHL orders must be received by 3:30pm for next day service to most destinations in Europe
- Federal Express International Priority - Items are usually delivered within 24 to 48 hours. FedEx orders must be received by 3.00pm for next day service to most destinations in Europe
- Federal Express International Economy - Item are usually delivered within 48 to 72 hours
We reserve the right to change your shipping method without notification if you select a method that we cannot use for your shipment (for instance, we cannot ship via postal services for items over 2 Kg to International destinations). If we need to change your shipping method, we will choose the least expensive shipping method for your order.
Worldwide - Excluding UK & Europe
Deliveries outside of the UK are not subject to 20% VAT and so the 20% tax on items is automatically deducted when you log-in, register or proceed to place an order.
If applicable, the customer will be liable for the taxes at the local tax rate, duty on the import and the brokerage service fee. This may need to be paid in advance to your local Customs & Excise office or the delivery company before your order can be delivered.
We offer the following shipping services:
- Royal Mail First Class International Airmail Services - Items are usually delivered within 7 to 10 working days
- Royal Mail Standard International Mail Services - Items are usually delivered within 15 working days
- DHL Express International - Items are usually delivered within 24 to 48 hours. DHL orders must be received by 3:30pm for next day service to most destinations in Europe
- Federal Express International Priority - Items are usually delivered within 48 hours. FedEx orders must be received by 3.00pm in order to ship items the same day, subject to stock availability
- Where the actual weight of the package significantly exceeds the shipping cost charged on orders, we may write to you for an additional shipping charge. For larger orders, items may be shipped in multiple packets at our discretion
We reserve the right to change your shipping method without notification if you select a method that we cannot use for your shipment (for instance, we cannot ship via postal services for items over 2 Kg to International destinations). If we need to change your shipping method, we will choose the least expensive shipping method for your order.
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