AudioQuest at AXPONA 2026
AudioQuest cables and power conditioners will contribute to the beautiful sound of many outstanding demonstration systems at AXPONA 2026. Find us at the show!
1
of
3
Loading...
AQ Refurbished
PowerQuest 505 Factory Certified Refurbished
12-Outlet Power Conditioner & Non-Sacrificial Surge Protector
Sale price
$637.00
Regular price
$699.95
Unit price
/
Unavailable
SKU:
PQ505NAB
Amplifier-End Connector: Multi-Spade, Banana, U-Spade, or V-Spade
Often, the choice between terminating your speaker cables with spade lugs or banana plugs will come down to personal preference. However, the EU-compliant isolated binding posts used on some power amplifiers often makes it difficult if not impossible to tighten spade lugs with high torque or pressure. In these applications, the AudioQuest banana connector is the superior choice, and may be the only choice.
AudioQuest has conducted a fairly extensive survey of contemporary amplifier manufacturers to determine whether spades or bananas will be most appropriate for a given brand and model of amplifier. Please contact us, provide the brand and model of the amplifier, and we’ll respond with the optimal connector type.
Given the girth and weight of our Mythical Creature Series speaker cables, a spade may be better capable of fully supporting the cable. This is particularly a concern with binding posts that do not allow a banana connector to fully seat into the post. The EU-compliant posts will neither accept our V-Spade nor allow our Multi-Spade to be fully seated. For these applications (or when you’re not certain), we highly recommend the U-Spade, as it can accommodate any binding post. The V-Spade is a specialty spade connector that works well with large wingnut binding posts (such as the Mundorf ), as it allows extra clearance.
Speaker-End Connector: Spade or Banana
Here we typically recommend the U-Spade or banana connector. However, even though there is less weight and pressure on this side of the cable (particularly for BiWire sets), it is nevertheless important to note the binding post’s design. If a banana connector cannot seat all the way into the binding post, we recommend one of our spade connectors.
Key Features & Technology Explained
Description
Description
Advanced Power Filtration for Enhanced Sound and Picture
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.
High-Performance, Detachable Power Cable
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.
Powerful Surge Defense with Long-Term Reliability
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 Withstand the Strongest Surges
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.
Purpose-Built Outlets for Ultimate Performance
Each of the PowerQuest 505’s outlets is specifically engineered for optimal performance in your home entertainment system. It includes:
- 4 High-Current Outlets: Designed for soundbars, power amplifiers, audio/video receivers, or subwoofers.
- 8 Ultra-Linear Filtered Outlets: Ideal for audio/video source components, computers, modems, or routers.
Rack-Mountable, Sleek Design
With its compact, rack-friendly dimensions and provided 2-RU rack ears, the PQ-505 fits comfortably in most spaces.
- Ultra-Linear Noise-Dissipation: Ensures consistent noise reduction for black backgrounds and detailed sound
- Non-Sacrificial Surge Protection: Reliably withstands multiple strikes of 6000V or 3000A — the maximum that can survive through a building’s AC electrical panel — without damage.
- Extreme-Voltage Shutdown: Disengages AC power in under 0.25 seconds when presented with 140VAC
- 12 AC outlets: 4 High-Current for amplifiers; 8 Ultra-Linear Filtered for source components
- Detachable Power Cable Included: 2 meter PQ-715 Detachable Power Cable avoids current compression, reduces distortion, dissipates noise.
- Rack Mountable: 2RU Rack Ears included for simple rack-mounting
- Flat to Wall Plug: Aids installations in tight spaces
| Materials & Design | |
|---|---|
Power Cable |
|
Outlets |
|
| Features & Performance | |
Noise-Dissipation |
Differential-Mode: 30kHz-1GHz; more than -22dB and Common-Mode: 30kHz-100MHz; more than -22dB
|
Maximum RMS Current |
|
| Manufacturing Details | |
Country of Origin |
|
Product Dimensions |
|
Sold As |
|
PowerQuest 505 Factory Certified Refurbished Compared
 |  PowerQuest 303$529.95 |  PowerQuest 505$849.95 |  PowerQuest 707$1,599.95 | |
|---|---|---|---|---|
Power Cable |
|
|
|
|
Outlets |
|
|
|
|
Noise-Dissipation |
Differential-Mode: 30kHz-1GHz; more than -22dB and Common-Mode: 30kHz-100MHz; more than -22dB
|
Differential-Mode: 30kHz-1GHz; more than -22dB
|
Differential-Mode: 30kHz-1GHz; more than -22dB and Common-Mode: 30kHz-100MHz; more than -22dB
|
Differential-Mode: 8kHz-1GHz; more than -22dB and Common-Mode: 30kHz-100MHz; more than -22dB
|
Maximum RMS Current |
|
|
|
|
Transient Power Correction |
—
|
—
|
—
|
|
Country of Origin |
|
|
|
|
Sold As |
|
|
|
|
Advice & Reviews
-
-
Introducing... BigFoot: The Myth Becomes Reality
There is an ideal way to biwire for the price of Brave Heart. Lone Ranger need no longer roam the hills alone. A legend has emerged from the darkness... BigFoot lives!
-
Introducing... PowerQuest 909: Where Power Meets Grace
Power meets grace in the PowerQuest 909, a high-performance 20-amp power conditioner with non-sacrificial surge protection and ultra-linear filtering.
-
StereoNET Presents: Inside AudioQuest, Part 1
In the first of a two-part conversation with StereoNET's Paul Sechi, AudioQuest's founder and CEO Bill Low describes himself as "a consumer who wants to get high on music."
-
Behind the Scenes at CMB Integrations' New Showroom
When CMB Integrations designed their new appointment-only showroom in Greer, South Carolina, they carefully considered every detail to create the best possible listening experience.
-
Requiem for a DAC: DragonFly Cobalt
The king is dead. Long live the king. Reports of DragonFly's demise are... premature.
-
Ola Björling on Gatekeeping Audiophile Dinosaurs, Extreme Metal, and the Sigberg Audio Saranna Immersion Machines
Ola Björling's Ukiro.Music YouTube channel is quickly becoming a favorite destination for thoughtful, entertaining hi-fi reviews and unexpected music recommendations.
-
AudioQuest Lone Ranger Inspires Emotional Immersion
Over at Headfonia.com, "2-Channel Felix" saddles up with our Lone Ranger ZERO-Tech speaker cable. "It draws me into the music in a way that I cannot let go," he says.
