Home

Explore

View Cart

Deals

Saved

Suggested searches

Plant-based protein powders
Vegan leather handbags
Bedroom decor
Waterproof jackets
Hoodies

Learn more about how we use your data to personalize your experience and ads. Recommendations are for informational purposes only.

AudioQuest

AudioQuest PowerQuest® 505 - PQ505NA

AudioQuest PowerQuest® 505 - PQ505NA

AudioQuest

PowerQuest 505 Factory Certified Refurbished

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$637.00$699.95

9% off

Color

Black

Quantity

Product description loading

Product description loading

This is the product description text that will appear here.

Shopping designed around you.

Start selling

For brands

For creators

Build your store

Information

Shop Pay

Help center

Social

X (Twitter)

Instagram

Legal

Terms of Service

Privacy Policy

Your Privacy Choices

Powered by

|

Start selling for free

Language

© Shopify Inc. 2026

Saving this product will notify you when it’s back in stock

You might also like

AudioQuest Silver Anti - Static Record Brush - AQSLVRRECBRUSH

AudioQuest

Silver Anti-Static Record Brush

17% off

HCM Audio

AudioQuest PowerQuest G8 Power Conditioner - Open Box

AudioQuest CleanScreen Clean & Polish Cloth - CSCLOTH

AudioQuest

CleanScreen Clean & Polish Cloth

AudioQuest PowerQuest TV3 - PQTV3

AudioQuest

PowerQuest TV3

AudioQuest PowerQuest 505 Power Conditioner

Audio Advice

AudioQuest PowerQuest 505 Surge Protector/Power Conditioner

(2)

Black power conditioner with 12 outlets and surge protection

World Wide Stereo

AudioQuest PowerQuest 303 Surge Protector and Power Conditioner with 12 Outlets

25% off

STEREO BOX

Audioquest PowerQuest 303 - IN STOCK

AudioQuest AudioQuest CleanScreen Spray Pen Single with 6ml Spray Pen + Microfiber Cleaning Cloth - 69-005-01

AudioQuest

AudioQuest CleanScreen Spray Pen Single with 6ml Spray Pen + Microfiber Cleaning Cloth

GRAMOPHONE

AudioQuest PowerQuest 707 12-Outlet Power Conditioner & Non-Sacrificial Surge Protector

40% off

Sunny Components Inc.

AudioQuest Tornado High-Current Power Cable C15 — 2m (Demo)

$1,195.00$1,995.00

Black power cable with braided nylon jacket and gold-plated connectors

World Wide Stereo

AudioQuest NRG-X3 Power Cable for Amplifiers and Power Conditioners - 6.56 ft (2m)

HCM Audio

AudioQuest Hurricane Source Power Cord

27% off

Dedicated Audio

Cardas Clear Interconnect - RCA - 1.0M PAIR - OPEN BOX

$2,199.00$3,000.00

ListenUp

AudioQuest PowerQuest G8 Surge Protector

6% off

HCM Audio

AudioQuest NRG-Y3 Power Cord - 3 Meter - Open Box

Exclusive offer available

Joe Audio

Audioquest Carbon Anti-Static Gold Record Brush

(18)

HCM Audio

AudioQuest PowerQuest G8 Power Conditioner

AudioQuest Storm Series Hurricane Source Component Power Cable

Upscale Audio

AudioQuest Storm Series Hurricane Source Component Power Cable

AudioQuest Bare Naked BiWire Jumpers - BWJUMPERS-G Gold

AudioQuest

PSC BiWire Jumpers

AudioQuest PowerQuest 909 - angled front view

Audio Advice

AudioQuest PowerQuest 909 20-Amp Power Conditioner

(1)

AudioQuest PowerQuest 707 AC Power Conditioner and Surge Protector - Front - at Preferred AudioQuest Online Dealer ListenUp

ListenUp

AudioQuest PowerQuest 707 AC Power Conditioner and Surge Protector

ListenUp

AudioQuest Niagara 3000 - Low-Z Power Noise-Dissipation System AC Power Conditioner

AudioQuest Coffee Digital Coaxial Cable

Upscale Audio

AudioQuest Coffee Digital Coaxial Cable

AudioQuest PowerQuest 303 12-Outlet Power Conditioner & Non-Sacrificial Surge Protector - front view

Audio Advice

AudioQuest PowerQuest 303 Surge Protector/Power Conditioner

(1)

HCM Audio

AudioQuest AC 15 H/W Power Cord (With or Without RFI)

AudioQuest PowerQuest TV3 angled right front view

Audio Advice

AudioQuest PowerQuest TV3 - 3-Outlet Non-Sacrificial Surge Protector for Wall-Mounted TVs

AudioQuest Sky 48 Recertified - HDM48SKY075 0.75 m = 2 ft 6 in

AudioQuest

Sky 48

27% off

Dedicated Audio

Cardas Clear Interconnect - RCA - 1.0M PAIR - OPEN BOX

$2,199.00$3,000.00

GRAMOPHONE

AudioQuest Hurricane High (Variable) Current AC Power Cable (Each)

GrooveWasher

4.9

(1.4K)

AudioQuest USB-A Noise-Stopper - CAPUSB

AudioQuest

USB-A Noise-Stopper

(1)

AudioQuest Rocket 33 Speaker Cable (pair) (OPEN)

15% off

Upscale Audio

AudioQuest Rocket 33 Speaker Cable (pair) (OPEN)

AudioQuest Sydney RCA > RCA - SYD0.6R 0.6 m = 1 ft 11 in

AudioQuest

Sydney RCA > RCA

HCM Audio

PowerQuest 707 Power Conditioner - AudioQuest

AudioQuest PowerQuest 303 AC Power Conditioner and Surge Protector - Front - at Preferred AudioQuest Online Dealer ListenUp

ListenUp

AudioQuest PowerQuest 303 AC Power Conditioner and Surge Protector

HCM Audio

AudioQuest Niagara 3000 Power Filter

Marantz MODEL 50 Pure Analog Integrated Amplifier (OPEN)

Upscale Audio

Marantz MODEL 50 Pure Analog Integrated Amplifier

GRAMOPHONE

AudioQuest PowerQuest 2 6-Outlet Power Conditioner & Non-Sacrificial Surge Protector

Black power cable with red stripes and gold-plated three-prong plug

World Wide Stereo

AudioQuest NRG-X3 Power Cable for Amplifiers and Power Conditioners - 9.84 ft (3m)

GRAMOPHONE

AudioQuest Tornado High (Variable) Current AC Power Cable (Each)

AudioQuest Sydney 3.5mm Mini > RCA - SYD0.6MR 0.6 m = 1 ft 11 in

AudioQuest

Sydney 3.5mm Mini > RCA

AudioQuest 2 meter NRG Tornado source cable IEC13 USA Braided. - Sunny Components Inc.

50% off

Sunny Components Inc.

AudioQuest 2m Tornado Source Power Cable (iec C13 to Us Plug)

$795.00$1,595.00

AudioQuest Monsoon Noise-Dissipation 3-Pole AC Power Cable | Best AudioQuest Monsoon Noise-Dissipation 3-Pole AC Power Cable | AudioQuest Monsoon Noise-Dissipation 3-Pole AC Power Cable Reviews | Audiolab Home Audio

Audiolab

AudioQuest Monsoon Noise-Dissipation 3-Pole AC Power Cable

Michell Record Clamp | Best Michell Record Clamp | Michell Record Clamp Reviews | Audiolab Stereo & Video

Audiolab

Michell Record Clamp

AudioQuest RJ45 Noise-Stopper - CAPRJ45

AudioQuest

RJ45 Noise-Stopper

(1)

AudioQuest Carbon USB Cable

Upscale Audio

AudioQuest Carbon USB Cable

AudioQuest PowerQuest 505 Power Conditioner | Best AudioQuest PowerQuest 505 Power Conditioner | AudioQuest PowerQuest 505 Power Conditioner Reviews | Audiolab Home Audio

Audiolab

AudioQuest PowerQuest 505 Power Conditioner

AudioQuest PowerQuest 707 12-Outlet Power Conditioner & Non-Sacrificial Surge Protector - front view

Audio Advice

AudioQuest Powerquest 707 NA Power Conditioner

(1)

Black power conditioner with red accent line, front power switch, and LED status indicators

World Wide Stereo

AudioQuest PowerQuest 909 20-Amp Power Conditioner with Non-Sacrificial Surge Protection

GRAMOPHONE

AudioQuest IEC > 3US Power Strip Male IEC > 3 Female IEC

(1)

Cardas Nautilus Power Strip

Upscale Audio

Cardas Nautilus Power Strip

Audioquest PowerQuest 2 6 Outlet Surge Protector Power Conditioner | Best Audioquest PowerQuest 2 6 Outlet Surge Protector Power Conditioner | Audioquest PowerQuest 2 6 Outlet Surge Protector Power Conditioner Reviews | Audiolab Home Audio

Audiolab

Audioquest PowerQuest 2 6 Outlet Surge Protector Power Conditioner

Black power cable with red stripes featuring a three-prong plug and a C13 connector

World Wide Stereo

AudioQuest NRG-X3 Power Cable for Amplifiers and Power Conditioners - 3.28 ft (1m)

AudioQuest Tornado 2m High current C19 braided (Demo) - Sunny Components Inc.

40% off

Sunny Components Inc.

AudioQuest Tornado 2m High Current C19 Braided (Demo)

$1,195.00$1,995.00

AudioQuest Rocket 33 Single BiWire - ROCK338SBS 8 ft = 2.4 m Pair - Braid Jacket 2 x Bananas > 4 x Bananas - Silver

AudioQuest

Rocket 33 Single-BiWire

GRAMOPHONE

AudioQuest Monsoon AC Power Cable

HCM Audio

AudioQuest Hurricane / High-Current Power Cord

(1)

AudioQuest XLR Input Noise - Stopper - 69 - 094 - 01

AudioQuest

XLR Input Noise-Stopper

(1)

AudioQuest CleanScreen Kit - AQCSKIT

AudioQuest

CleanScreen Kit

AudioQuest Black Hole GroundGoody Grounding Wire

Upscale Audio

AudioQuest Black Hole GroundGoody Grounding Wire

Black power conditioner with 12 outlets and surge protection

World Wide Stereo

AudioQuest PowerQuest 505 Surge Protector and Power Conditioner with 12 Outlets

25% off

HCM Audio

AudioQuest PowerQuest 707 Power Conditioner - Open Box

$1,200.00$1,599.95

GRAMOPHONE

AudioQuest PowerQuest 3 8-Outlet Power Conditioner & Non-Sacrificial Surge Protector

AudioQuest CleanScreen Laptop & Tablet Cleaner - CS20ML

AudioQuest

CleanScreen Laptop & Tablet Cleaner

NAD C 3050 Stereo Integrated Amplifier

Upscale Audio

NAD C 3050 Stereo Integrated Amplifier

GRAMOPHONE

AudioQuest PowerQuest 303 12-Outlet Power Conditioner & Non-Sacrificial Surge Protector

AudioQuest PowerQuest TV3 Surge Protector

ListenUp

AudioQuest PowerQuest TV3 Surge Protector & Noise Filter

AudioQuest Hurricane source power cord 15-amp 2m braided - Sunny Components Inc.

50% off

Sunny Components Inc.

AudioQuest Hurricane Source Power Cord 15-amp 2m Braided (Demo)

$1,395.00$2,800.00

Cardas Clear Reflection Speaker Cable

Upscale Audio

Cardas Clear Reflection Speaker Cable

HCM Audio

AudioQuest AC 12 Power Cord with Multiple Options

37% off

HCM Audio

AudioQuest Blizzard Power Cord

$695.00$1,095.00

HCM Audio

AudioQuest PowerQuest 3 Power Filter

AudioQuest CleanScreen Pack - CS6OZWCLOTH

AudioQuest

CleanScreen Pack

AudioQuest Thunderbird GroundGoody Grounding Wire

Upscale Audio

AudioQuest Thunderbird GroundGoody Grounding Wire

AudioQuest PowerQuest 505 AC Power Conditioner and Surge Protector - Front - at Preferred AudioQuest Online Dealer ListenUp

ListenUp

AudioQuest PowerQuest 505 AC Power Conditioner and Surge Protector

25% off

STEREO BOX

Audioquest PowerQuest 505 - IN STOCK

25% off

STEREO BOX

Audioquest PowerQuest 707 - IN STOCK

$1,228.00$1,637.00

AudioQuest HDMI Noise-Stopper - CAPHDM

AudioQuest

HDMI Noise-Stopper

(1)

Auris Nirvana VI Headphone Amplifier (OPEN)

23% off

Upscale Audio

Auris Nirvana VI Headphone Amplifier

$4,999.00$6,499.00

15% off

STEREO BOX

Audioquest PowerQuest 2 - IN STOCK

HCM Audio

AudioQuest Tornado / High-Current Power Cord

HCM Audio

AudioQuest AC 15 Bulk Power Cord

Cardas Iridium Speaker Cable

Upscale Audio

Cardas Iridium Speaker Cable

25% off

HCM Audio

AudioQuest NRG-Z3 Power Cord 3M - Open Box

25% off

HCM Audio

AudioQuest NRG-Z2 - 1 Meter Power Cord - Open Box

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 ...

Delivery & Returns

Returns accepted within 30 days

Exclusions may apply. See full policy

AudioQuest

AudioQuest

5 (10)