Audiophile AC power line conditioner • ultra-linear wide-bandwidth RF noise dissipation • non-sacrificial surge protection • extreme voltage shutdown • 12 AC outlets (high-current & linear-filtered) • includes 2-meter AudioQuest PQ-716 power cable • 2U rack-mountable chassis
The AudioQuest PowerQuest 505 Power Conditioner delivers reference-grade AC line filtration, component isolation, and fail-safe power protection tailored for premium two-channel stereo systems and custom home theater installations. Leveraging engineering breakthroughs from AudioQuest’s award-winning Niagara series, this high-performance 2U power conditioner utilizes wideband Differential RF Noise Dissipation to strip away electromagnetic haze and radio frequency noise without restricting incoming dynamic current. Armed with 12 isolated AC outlets, non-sacrificial surge suppression, and fast-acting Extreme Voltage Shutdown (EVS), it safeguards connected high-end electronics while revealing deeper background silence, uncompressed dynamic swing, and refined low-level musical detail.
Key Features & Innovations
Ultra-Linear Differential RF Noise Dissipation — the AudioQuest PowerQuest 505 Power Conditioner employs precision linear filtering from 30 kHz to 1 GHz, eliminating radio-frequency interference and utility line noise evenly across bandwidths without introducing unwanted ringing or frequency response peaks.
Non-Sacrificial Surge Suppression with EVS — repeatedly withstands punishing electrical spikes up to 6,000V/3,000A without degrading internal protection circuits, supplemented by Extreme Voltage Shutdown that disconnects the main relay within 0.25 seconds if incoming line voltage exceeds 140V AC.
12 Total AC Outlets in Discrete Isolated Banks — provides 4 high-current outlets engineered specifically for dynamic power amplifiers, subwoofers, and active monitors, plus 8 ultra-linear filtered outlets to prevent cross-component contamination among sensitive streamers, DACs, and preamplifiers.
Bundled AudioQuest PQ-716 Direction-Controlled Power Cable — comes standard with a detachable 2-meter premium AudioQuest power cord featuring semi-solid concentric Long-Grain Copper (LGC) conductors and direction-controlled RF noise dissipation.
Flexible 2U Component or Rack-Mount Enclosure — finished in a sleek brushed chassis that complements standard audio components on an equipment rack shelf or mounts flush in standard 19-inch AV gear racks using the included rack ears.
FAQ — AudioQuest PowerQuest 505
Does the AudioQuest PowerQuest 505 Power Conditioner limit the dynamic impact of power amplifiers?
No. The AudioQuest PowerQuest 505 Power Conditioner features 4 dedicated High-Current outlets designed with ultra-low DC resistance, allowing high-draw power amplifiers and powered subwoofers to pull unrestricted peak current during intense audio transients.
How does the non-sacrificial surge protection operate compared to standard power strips?
Unlike standard surge strips that rely on sacrificial MOVs that wear down after minor spikes and eventually fail, the non-sacrificial circuitry in the PowerQuest 505 absorbs and dissipates severe electrical surges repeatedly without wearing out or requiring factory replacement.
Can this power conditioner be installed into a standard 19-inch equipment rack?
Yes, the unit features a 2U height profile and includes removable rack-mount ears with mounting hardware for easy integration into standard 19-inch equipment racks.
What occurs during an over-voltage event?
When continuous incoming AC utility power rises above approximately 140V, the Extreme Voltage Shutdown (EVS) circuit triggers a high-speed relay that cuts power to all 12 outlets within 0.25 seconds, automatically reconnecting power once voltage stabilizes within safe operating margins.
Why Buy From Us
Authorized AudioQuest dealer offering 100% factory-authentic power conditioning components with full manufacturer warranty protection
Experienced audiophile and home theater technicians ready to advise on outlet zoning, cable matching, and system grounding
Dedicated post-purchase technical support for system diagnostics and rack integration
Prompt, insured freight delivery in heavy-duty protective packaging on every order
Related & System Matches
AudioQuest NRG, Monsoon, and Blizzard high-current AC power cables
AudioQuest Niagara and PowerQuest line conditioners
High-resolution stereo power amplifiers, AV processors, and digital streaming DACs
