AudioQuest PowerQuest 303 Power line conditioner and surge protector

Defend your gear against harmful spikes and surges

You may think that a regular power strip is all you need for your A/V system. But a lot of cheap power strips have no means of protecting against power surges and spikes; even fewer have any form of power line filtration to guard against sound-muddying noise. That’s where AudioQuest’s new PowerQuest 303 comes in handy.

Unlike regular surge protectors, this non-sacrificial surge protector defends against harmful spikes again and again. It also doubles as a line conditioner and provides your components with filtered, noise-free power.

Power protection that keeps on defending

There are two kinds of surge protectors out there: sacrificial and non-sacrificial. Sacrificial surge protectors are more common and more affordable; they can take one big spike and safely dissipate it, but they need to be replaced afterwards. Non-sacrificial surge protectors like the PowerQuest 303 keep defending your gear even after a series of spikes. AudioQuest made sure the ‘303 can withstand maximum surges of up to an impressive 6,000 volts/3,000 amps. For reference, that’s the upper limit of what a home’s breaker box can withstand.

Thankfully, the ‘303 doesn’t let such powerful surges through. Once the incoming power hits 140 volts, the surge protector opens its main power relay in less than a quarter of a second, severing the electrical pathway and keeping your sensitive equipment safe from harm. Once voltages go back down to a safe level, the ‘303 resets the circuit and operates as normal.

Filter power line noise before it hits your components

Not only does the PowerQuest 303 keep your gear safe, but it also helps it perform better too. The ‘303 uses linear noise dissipation to keep noise from muddying your system. That can help your TV deliver a clearer picture and your audio system clearer sound.

12 outlets for connecting your equipment

The PowerQuest 303 has you covered even if you’re running a huge system. It has 12 total outlets. Eight of those are linear-filtered and are perfect for connecting source components or constant-current components like TVs, streaming sticks, DACs, and more. The remaining four outlets are high-current and are geared toward variable-current components like power amplifiers, powered subs, powered speakers, and the like.

Noise-rejecting power cable

AudioQuest gave this surge protector a high-quality detachable power cable that rejects pesky RF noise. It terminates into a flat-to-wall plug that can squeeze into tight spaces.