QSA US 20 Amp Circuit Breaker

The QSA circuit breaker is one of the highest-leverage upgrades available for a listening room. It installs exactly like any standard 20A breaker — same procedure, same electrical specs — and affects everything on that circuit simultaneously. Every component plugged into that line benefits from a single installation.

What It Does

QSA applies their proprietary quantum treatment to an otherwise standard US single-pole 20A breaker. The treatment changes what happens downstream: bass becomes more defined and physical, the soundstage opens significantly, the overall presentation becomes more natural and less fatiguing. We've used the phrase "holographic" to describe the soundstage effect — we mean it literally. The effect is greater than any power conditioner achieves through conventional filtering.

Pair it with a QSA AC receptacle on the same circuit and the combination approaches what very expensive power conditioning achieves, for considerably less investment. The breaker and receptacle together address the circuit from distribution point to outlet — a complete treatment of the delivery chain before the power enters any component.

Read More

We've written extensively about power optimization strategy for audio on the Tweek Geek blog. The post "Pillar 2: The Tweek Geek System of Power Optimization for Audio" covers where the QSA breaker fits in a comprehensive approach to power quality. Worth reading before you start.

Panel Compatibility

Available for multiple US panel types. Contact us before ordering to confirm your panel accepts the specific breaker type we have in stock — this is important and a short conversation prevents an incompatible purchase.

Specifications

• Rating: US single-pole, 20 amp
• Treatment: QSA proprietary
• Effect: System-wide, all components on the circuit
• Note: Contact us for panel compatibility before ordering

Reach out before you order. Panel compatibility matters and we want to get it right.