F1-MK3 Improved version Class A linear power supply stereo tone preamp with Bluetooth 5.0

Bluetooth decoder chip: ES9023

Bluetooth protocol: SBC, ACC, APTX, APTX-HD, LDAC

Signal-to-noise ratio: 113dB@1KHz

Distortion: 0.01%@1KHz

Frequency response range: 20Hz~22KHz

Working voltage: AC110V or AC220V (optional)

Input: Stereo RCA

Output: Stereo RCA

VOLUME: Volume control

BASS: bass adjustment

MID: Midrange adjustment

TREBLE: treble adjustment (when the treble is turned left to the bottom, it is a straight-through function)

Dimensions (W*H*D): 190*47*191MM

Net weight: about 1.45KG

Package list:

1 × Finished pre-amplifier