Fosi Audio - BOX X2 / Vacuum Tube MM Phono (39dB, 42dB, 45dB) Tube preamplifier





€44 | ||
|---|---|---|
€39 | ||
€34 | ||
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Fosi Audio BOX X2 / Vacuum Tube MM Phono (39dB, 42dB, 45dB), a single unit with a weight of 300 g, is in good physical condition and has been tested and is operational, including a power cable.
Description from the seller
Are you ready to transform your listening experience and make your vinyls resonate like never before? The Fosi Audio BOX X2 is the technological gem crafted for music lovers who seek the true magic of analog sound. Thanks to the tube preamplification stage, this device eliminates the coldness of digital sound, giving your LPs a warm, three‑dimensional timbre with velvety vocals and enveloping bass. With the convenient front-facing gain selector with three levels (39dB, 42dB, 45dB), you can perfectly calibrate the output according to your turntable’s MM cartridge, always obtaining a clean signal free of distortion.
Why You Can’t Do Without It?
On the front there is a black knob that manages both power and gain selection (Gain):
- OFF: Powers off the device completely.
- 39 dB: Low gain level, ideal for sources with higher output signal or for high-output cartridges.
- 42 dB: Medium gain level (standard for most MM cartridges).
- 45 dB: High gain level, for cartridges with weaker output or to give more push to the amplifier.
In addition to the Phono RCA input with dedicated GND ground connector, it also features a 3.5 mm AUX input. The tubes are included and replaceable, allowing collectors and more demanding audiophiles to further customize the sound by trying different historic tubes (such as JAN 5654W).
Seller's Story
Are you ready to transform your listening experience and make your vinyls resonate like never before? The Fosi Audio BOX X2 is the technological gem crafted for music lovers who seek the true magic of analog sound. Thanks to the tube preamplification stage, this device eliminates the coldness of digital sound, giving your LPs a warm, three‑dimensional timbre with velvety vocals and enveloping bass. With the convenient front-facing gain selector with three levels (39dB, 42dB, 45dB), you can perfectly calibrate the output according to your turntable’s MM cartridge, always obtaining a clean signal free of distortion.
Why You Can’t Do Without It?
On the front there is a black knob that manages both power and gain selection (Gain):
- OFF: Powers off the device completely.
- 39 dB: Low gain level, ideal for sources with higher output signal or for high-output cartridges.
- 42 dB: Medium gain level (standard for most MM cartridges).
- 45 dB: High gain level, for cartridges with weaker output or to give more push to the amplifier.
In addition to the Phono RCA input with dedicated GND ground connector, it also features a 3.5 mm AUX input. The tubes are included and replaceable, allowing collectors and more demanding audiophiles to further customize the sound by trying different historic tubes (such as JAN 5654W).

