With the BOX X3 tube preamp , the big brother to the BOX X2 , Fosi Audio is introducing an affordable, high-quality Hifi device for those who want the warm, rich sound of a tube amp. Combining vintage and modern technology, BOX X3 also features Bluetooth 5.0 for wireless connection of audio sources.
On the front panel of the BOX X3 there is a volume control with bass and treble adjustment, as well as an auxiliary 3.5 mm jack input for connecting various audio sources, such as a telephone, DAC or others. The rear panel has a stereo RCA input and output with a GND terminal for phono connection to a turntable (MM).
FOSI Audio BOX X3 is the ideal companion for a power amplifier or a pair of active speakers. It will enhance the sound quality of your Hi-Fi system. The package includes a pair of GE5654 (7-pin) lamps, which can be easily replaced with 5654W / 6K4 / 6J1 / 6J1P / 6J2 / 6J3 / 6J4 / 6J5 / 6AK5 / 6K4 / 6ZH1P / 4.3a / 4.3B / EF95 lamps, if you prefer a different sound. Overall, the BOX X3 is a great entry-level preamp.
Features of Fosi Audio BOX X3:
- Item Type: MM Phono Preamplifier
- Bulbs: 2x GE5654
- Inputs: 1x stereo RCA input with GND/ 1x auxiliary input 3.5 mm jack/ / Bluetooth
- Output: 1x stereo RCA
- Output voltage level: 650Mv @3mV 1kHz
- SNR: ≥ 98 dB
- THD: ≤ 0.1%
- Frequency Response: Standard RIAA
- Volume control
- Compatible Item Type: MM
- GND terminal
- Power supply: DC 12V 1.5A
- Black color
- Dimensions: 101 x 120 x 35 mm
- Weight: 350 g