Need help? Call us on 0800 772 3688 or 0208 905 1555
Prefer email? Contact us via sales@futureshop.co.uk



















Need help? Call us on 0800 772 3688 or 0208 905 1555
Prefer email? Contact us via sales@futureshop.co.uk
The AudioQuest PowerQuest 505 is a serious mains conditioning and surge protection unit designed to clean up the AC supply reaching both amplification and source components, with dedicated outlet groups tailored to each task. Three High-Current outlets handle power amplifiers, subwoofers, and receivers, while four Ultra-Linear Filtered outlets serve source components such as streamers, DACs, and digital processors. The filtering on the source outlets targets differential and common-mode noise across a wide frequency range from 30kHz up to 1GHz, removing the high-frequency contamination that digital equipment both generates and is susceptible to, without the current compression that poorly designed conditioners can impose on amplifiers.
Surge protection on the PowerQuest 505 is non-sacrificial, meaning the protection circuitry is designed to withstand repeated strikes at the maximum levels that can pass through a building's AC panel, rated at 6000V and 3000A, without degrading over time. An Extreme Voltage Shutdown circuit monitors incoming voltage and disconnects the unit in under 0.25 seconds if it exceeds 140VAC, resetting automatically once the supply returns to a safe level. The included PQ-715 detachable power cable is a meaningful part of the package rather than an afterthought: it uses Semi-Solid Long-Grain Copper conductors with direction-controlled geometry, ZERO-Tech for uncompressed current transfer, and RF/ND-Tech to reduce induced RF noise before it reaches the conditioner itself. The unit is rack-mountable via the included 2RU ears, with a flat-to-wall plug configuration that aids installation in tighter spaces.
AudioQuest PowerQuest 505 is a high-performance power conditioner with 7 AC outlets (3 High-Current outlets for amplifiers and 4 Ultra-Linear-Filtered outlets for source components), a 2m detachable AC power cable featuring ZERO-Tech and RF/ND-Tech, and 2RU rack ears for simple rack-mounting.
Engineered with advanced power filtration, the PowerQuest 505 removes significantly more noise and distortion than typical power conditioners, helping your system perform at its best.
The detachable PQ-715 cable uses AudioQuest’s high-purity Semi-Solid Long-Grain Copper conductor metal in which strands are packed more tightly and never change position within the bundle, significantly reducing strand-interaction distortion. Long-Grain Copper further minimizes distortion caused by grain boundaries that exist within any metal conductor. A fundamental aspect of AudioQuest's multifaceted Noise-Dissipation technology, Direction-Controlled Conductors ensure induced noise is dissipated and drained properly — away from the system’s vulnerable circuitry. AudioQuest’s ZERO-Tech ensures uncompressed current transfer and linearized noise-dissipation; RF/ND-Tech minimizes circuit misbehavior by canceling induced RF noise.
With non-sacrificial surge protection, the PQ-505 goes beyond traditional surge protectors. It safeguards against high voltage and current, preventing damage to your equipment and ensuring the device’s long-term reliability. The Extreme Voltage Shutdown feature activates the main power circuit relay in less than 0.25 seconds at 140VAC and automatically resets once power returns to a safe level.
Built to endure rigorous 6000V/3000A input surge tests, the PQ-505 can withstand multiple surges at the highest level that a building’s AC panel can survive, offering reliable protection without components wearing out over time.
Each of the PowerQuest 505’s outlets is specifically engineered for optimal performance in your home entertainment system. It includes:
With its compact, rack-friendly dimensions and provided 2-RU rack ears, the PQ-505 fits comfortably in most spaces.
Since 1980, AudioQuest, headquartered in Irvine, California, has been a leading developer, manufacturer, and distributor of high-performance audio/video products and custom-install solutions. Although best known for our comprehensive range of analog, digital, and AC power cables, our portfolio has expanded to a diverse assortment of products, including the multi award-winning DragonFly DACs, Niagara and PowerQuest power products.
Our ultimate goal is the same today as was from the start: Do No Harm! By this we mean that all cables and components, to the extent that is technologically feasible, should get out of the music’s way by inducing the least amount of noise and distortion.
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:
UK Postal & Delivery Charges - FIRST CLASS
Free UK delivery on all orders over £99*
| Weight | Price (FIRST CLASS UK POSTAGE) |
|---|---|
| 0000g – 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.
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.
For the Next Day Special Delivery service, orders must be received by Future Shop by 4.30pm weekdays. Orders after the 4.30pm deadline cannot be guaranteed for same day dispatch.
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.
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.
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:
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.
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:
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.