Warm Tips:
1. Default 32V/5A power supply, can satisfy the needs of most home speakers. If you need higher power output, please prepare a high-quality and large power supply by yourself.
2. The 3.5mm AUX output and the speaker jacks output are controlled by the main volume and bass/treble synchronously.

Parameters:
Brand: Douk Audio
Model: M1 MAX
Audio input: Bluetooth / Stereo RCA / U-disk
Audio output: Banana speaker jacks / 3.5mm AUX
Bluetooth version: 5.1 (supports SBC/AAC/aptX/aptX HD)
SNR: ≥110dB
THD+N: 0.01%@1kHz
Frequency response: 20Hz-20kHz (±1dB)
Input sensitivity: 1.4V
AUX output level: 1.6V
Treble/bass adjustment range: ±6dB
Max sampling rate:
Bluetooth input: 48KHz/24bit
U-disk input: 48KHz/16bit
U-disk format: FAT32
Maximum capacity supported on U-disk: 32G
Working voltage: DC 24-48V
Dimensions (W*D*H): 155*125*42mm / 6.10*4.92*1.65in
Package dimensions (W*D*H): 300*230*70mm / 11.81*9.06*2.76in
Net weight: 800g / 1.76lb
Package weight: 1.50kg / 3.31lb

Packing List:
1* M1 MAX Amplifier
1* DC 32V/5A Power Adapter
1* Bluetooth Antenna
1* User Manual