64 Audio U6t Universal IEM Earphones
Usage Guide
Earphones
Our Hi-Fi specialists give free, honest advice — no commission, ever. Contact us by email or phone and we'll help you find the right cable for your system.
Item code: P002537
Inc. VAT (20%) · Ex. VAT: £1,165.83 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
64 Audio U6t Universal IEM Earphones
The 64 Audio U6t Universal IEM Earphones offer an accessible way to experience the sonic excellence of 64 Audio's flagship IEMs in a universal form. Drawing from the sonic palette of the U12t, the U6t delivers a balanced and natural sound with a slightly softer presentation of the mix, making it stand out among other UIEM models.
With beautiful upper-mid imaging and realistic instrument representation, particularly for guitars and piano, the U6t breathes life into mid-bass mixes, especially those focused on vocals. The included apex modules and ear tips allow for further customisation of the sound based on individual music preferences.
Inspired by the U18s, the U6t features a dark grey matte shell finish and newly redesigned packaging, reflecting the next generation of 64 Audio's audiophile products. Equipped with patented technologies such as Tubeless In-Ear Audio (tia), Air Pressure Exchange (Apex), and Linear Impedance Design (LID), the U6t ensures reduced resonance and distortion for a transparent and lifelike sound signature.
The Apex venting system enables comfortable long-term listening by releasing air pressure in the ear canal while maintaining isolation, resulting in a more realistic soundstage. The LID circuit corrects non-linear electrical resistance, ensuring consistent and reliable sound regardless of the source amplifier output impedance.
What 64 Audio say
64 Audio’s most popular CIEM now available in a universal form. U6t draws from the sonic palette of U12t; boasting the same groundbreaking technology as our flagship IEMs in our ergonomic aluminum shell to make it more accessible than ever.
While looking towards U12t for sonic inspiration, our U18s influenced U6t's dark grey matte shell finish as well as its newly redesigned packaging. The understated shell design and classic black faceplate reflect what you can expect from the new generation of 64 Audio’s audiophile products.
Sound
In standard 64 Audio fashion, U6t is a balanced natural sounding earphone, slightly set apart from our other UIEM models by offering a softer presentation of a mix. Beautiful upper-mid imaging, realistically presenting instruments like guitars and piano as well as breathing life into saturated mid-bass mixes, especially when vocal focused. Using the various included apex modules and ear-tips allows the listener to further customise the sound of the U6t based on the needs of the music.
Featured Technology
Tubeless In-Ear Audio (tia) is a patented IEM design methodology that aims to reduce unwanted resonance and distortion for a transparent and lifelike sound signature. The tia system is comprised of three major elements: open balanced armature tia drivers, the tia single-bore design, and tia acoustic chambers. U6t features two major elements of the tia system: the tia driver and the tia single-bore design.
Air Pressure Exchange (Apex) is a patented vent that releases air pressure in a sealed ear canal all while retaining standard IEM levels of isolation; enabling musicians and music enthusiasts to listen more comfortably for longer. This venting alleviates listener fatigue and allows for a much more realistic soundstage. Apex comes in three module variations for U6t: mX, m15 and m20.
Linear Impedance Design (LID) is a patented circuit that corrects the non-linear electrical resistance of the multiple driver-sets comprising this 6 driver IEM. Varying source amplifier output impedance in devices like smartphones, body packs, DAC/amps, and DAPs typically results in varying frequency response across them, depending on the increase in resistance. Restoring proper interaction with the source and preserving the desired sound signature enables a consistent reliable sound.
Specification
- 1 tia High Driver – 1 High-Mid Driver – 2 Mid Drivers – 2 Low Drivers
- 10hz – 20kHz Frequency Response
- 108 dB/mW Sensitivity
- Integrated 4-way Passive Crossover
- 10Ω Nominal Impedance
- Apex Technology Isolation: -20dB, -15dB, -10dB
Black Premium Cable
- 0.23 Ohms Total Impedance
- 7 x 7 x 4 Multi-Twist
- Silver Plated OCC Copper Wire
- 26 AWG
- Terminated in 3.5mm
Included
- U6t Universal in-Ear Monitors
- 64 Audio Premium Leather Case
- TrueFidelity Foam Ear Tips (S,M,L)
- SpinFit Silicone Ear Tips (S,M,L)
- Silicone Ear Tips (S,M,L)
- 3.5mm Black Premium Cable
- Apex Modules: m20, m15, mX
- Round Sticker
About 64 Audio
64 Audio is a family-driven company, comprising individuals who are mothers, fathers, sisters, brothers, musicians, and friends. With experiences spanning across oceans, career changes, and personal growth, they have remained united by the bonds of family and shared values. From sacrificing meals to pursuing entrepreneurial ventures, their journey has been defined by resilience and a commitment to those around them.
Their belief in the power of music to break down barriers drives their mission to redefine the world's connection with sound. By offering products that deliver music in its purest form, they aim to inspire both musicians and music enthusiasts to forge deeper connections with the music they love. Founded by Vitaliy Belonozhko, whose background as a sound engineer sparked the inception of 64 Audio, the company has evolved into a leading innovator in the in-ear monitor industry. With a dedicated team and a passion for excellence, 64 Audio continues to push the boundaries of audio technology.
About 64 Audio
Maker of custom and universal in-ear monitors, known for its tia drivers and Apex air pressure venting.
64 Audio makes in-ear monitors in two formats: universal-fit models you can use straight away, and custom models built to the shape of your ears. The company is American, and its catalogue runs from more accessible universals up to multi-driver flagships. You can choose by budget, fit preference and the way you listen.
Read more about 64 AudioShow less
The tia design uses an open driver layout
tia stands for Tubeless In-Ear Audio. 64 Audio says the design pairs open balanced armature drivers with a single large bore and tuned chambers, aimed at a wider soundstage and a smooth response. Not every model uses it, so check the product page for the one you are considering.
Apex vents pressure and sets isolation
Apex stands for air pressure exchange. 64 Audio says the vent relieves pressure in the ear canal to reduce listening fatigue. Replaceable isolation modules let you choose how much outside noise reaches you: the m20 module cuts 20dB, the m15 cuts 15dB and the mX cuts 10dB.
Custom and universal ranges sit side by side
The catalogue is divided into universal and custom ranges. Custom models are made from a digital scan of your ear and a 3D-printed shell, a process 64 Audio calls 3D-Fit. The company also names LID, short for linear impedance design, as a technology used across its multi-driver models.
Specification
- 1 tia High Driver – 1 High-Mid Driver – 2 Mid Drivers – 2 Low Drivers
- 10hz – 20kHz Frequency Response
- 108 dB/mW Sensitivity
- Integrated 4-way Passive Crossover
- 10Ω Nominal Impedance
- Apex Technology Isolation: -20dB, -15dB, -10dB
Black Premium Cable
- 0.23 Ohms Total Impedance
- 7 x 7 x 4 Multi-Twist
- Silver Plated OCC Copper Wire
- 26 AWG
- Terminated in 3.5mm
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.