Quantum Science Audio

QSA USB Adapters - Original Series

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QSA Adapter Original Series: Yellow ($213)
QSA USB adapters fit on both ends of the USB cable connecting your streamer to your DAC. Overall, the QSA adapters increase soundstage dimensionality in all directions, and improve the sense of naturalness in the presentation.

NOTE: QSA occasionally has order backlogs, and it may take up to 8 weeks to receive your item if we do not have it in stock. Please be patient, it will be worth the wait!

Pickup available at Shop location

Usually ready in 2-4 days

QSA Original Series USB Audio Enhancer/Adapters

Original Series = Full Bodied Naturalness



What They are

The QSA USB Audio Enhnancer/Adapters are designed to enhance the audio of your streaming digital system. They incorporate the same metallurgical treatment that makes the other QSA products so remarkable in what they do for sonics. They don't look like much, but in this case looks are very deceiving.

What You Get

The 2 piece set of adapters consists of one USB A-Type adapter for your streamer or laptop's USB output, and one USB Type-B adapter for the connection from the USB cable to your DAC's USB input.

Original Series

the Original Series has a touch of warmth, along with a wonderful, flowing naturalness. The Crystal series is the most neutral, focusing on transparency. The Horn Series has even the most warmth with emphasis on a lush and present midrange.

Their Effectiveness

Even on our extremely tweaked out streaming setup, which consists of the following:

We immediately heard the effect of the adapters. Immediately, there was more musical information, and it was presented in a very natural, organic way. This was straight out of the box!

A word on Break in

The QSA products take longer than normal to break in. We recommend 30 days of continuous use. For Silver and Gold level devices, break in can be double that.