Product descriptions:
AIYIMA Amplifier:
·Stereo Max. output power: 2x300W (@4 0hm)
·Stereo Speaker impedance: 4 - 8 Ohm
Supply power :DC24-48V , 5A or more
.3.5mm AUX Maximum Output level: 2.3V
·Frequency response: 20 Hz ~ 20KHz（±1dB）for Speaker output
·Frequency response: 20 Hz ~ 20KHz（±0.5dB）for AUX output
·S/N ratio: ≥104 dB（COA/OPT/USB input）
S/N ratio: ≥100 dB（BT/RCA input）
·THD: 0.008%(@1W)（COA/OPT/USB input）
·THD: 0.015%(@1W)（BT/RCA input）
·Input sensitivity: 0dBFS / 0.775V

QCC3031+ES9018K2M+NJW1194+TPA3255DDVR+SA9123L+TPS5430+QDDARQ1+LM16030
Audio input : Bluetooth/PC-USB/OPT/COA/RCA
Audio output: SPK OUT(connect with passive speaker)+AUX OUT(connect with power amplifier or active speaker)
AUX OUT: connect with power amplifier or active speaker
3.5mm AUX OUT as output connect to next amplifier with volume control

Size:254*124*42MM
Note: If you want to get a better sound output, please put the treble-3db and the bass +3db.

The Amplifier output power is related to the supply voltage/current, the speaker impedance, if you want get more powerful output, also please choose powerful supply power, we recommend DC48V 5A or more.

Package included:
1Pcs AIYIMA Amplifier
1Pcs Power Adapter (Optional)