At the heart of the 9i-906 Silver Fox lies a robust high-current power supply and four pairs of high-output British FET output transistors, resulting in exceptionally fast transient response and remarkable current-handling capability. With an output power of 20W at 30 ohms (BTL mode, 0.02% distortion), it can effortlessly drive even the most demanding low-sensitivity headphones on the market—such as the HIFIMAN Susvara—without compromise.

The device offers four output modes (Normal, Balanced [BTL], Virtual Ground [Active G], Parallel) and four impedance options (1 high, 3 low). It can thus be perfectly matched with dynamic, planar magnetic, high- or low-impedance, sensitive or insensitive headphones—making it a truly universal reference amplifier tailored to audiophile needs.

The sonic character of the 9i-906 "Silver Fox" embodies high resolution, exceptional detail retrieval, great sound density, color-free neutrality, and natural musicality. There are no aggressive peaks or dips—the result is a neutral, honest, and highly informative amplifier platform that enables your headphones to reveal every hidden nuance, tempo, and dynamic shift.

One of the amplifier’s key innovations is that the unbalanced input is automatically converted into a balanced signal within the internal circuit, allowing maximum output capability from any source. However, for achieving the highest sound quality, a balanced input is recommended!

Output power

>20W (BTL mode, impedance 30R)

THD+N

< 0.015%

Dimensions

430 x 100 x 360 mm

"Silver Fox"

1 x 9i-906 "Silver Fox"

Power cable

1 x factory power cable

Documents

1 x Warranty card
1 x User manual