QSA 20 Amp IEC Power Cord Adapter

The IEC inlet is the last connection before your component's internal power supply. The QSA 20 amp IEC adapter sits there, between your power cord and the inlet, so the treatment is as close to the component as it can be, with nothing to open, replace, or modify.

The last connection before your component, treated.

The Design

QSA says its treatment, which it calls MMMAT and MAT, makes electron flow through the metal more efficient. QSA keeps the process to itself, so we judge it the way Stereo Times' Clement Perry says he does: by listening. This is a plug-in 20 amp adapter for a C19 cord and C20 inlet, in levels from Yellow through Gold.

Our impressions of the ladder: Yellow is the entry point and a worthwhile step; Violet is more natural and musical; Red is where the QSA character becomes unmistakable; Black/Red steps up image density and resolution; Gold is QSA's reference level.

Want the full level-by-level breakdown, including where Orange fits and which level suits a warm-sounding system? Read our QSA color levels guide.

Our Experience

The adapter is the easiest way into the QSA family: nothing to install, and you can move it from component to component. In our experience it lowers the noise floor and brings more resolution and naturalness. We offer auditions at the higher levels before you buy.

Where It Fits

Use it on any component with a 20 amp IEC inlet, such as many power amplifiers. QSA adapters are made to order, so they are special order and non-returnable; a trade-up program credits what you've paid toward a higher level.

Press Recognition

• Stereo Times' Clement Perry reviewed QSA's Silver Jitter AC adapter, the wall-plug sibling of this product, and heard more depth, separation, and transparency. Reviews of this IEC adapter are on the way. Read the review at Stereo Times

Unsure of the level, or whether this adapter fits your IEC configuration? Give us a call.

Specifications

• Type: IEC power cord adapter with QSA treatment
• Rating: 20 amp (C19 cord, C20 inlet)
• Levels: Yellow, Violet, Orange, Red, Black/Red, Silver, Gold
• Installation: Plug-in
• Ordering: Special order; non-returnable; trade-up program available; auditions at higher levels