Douk Audio 2 Channel Bluetooth Amp: HiFi Stereo Amplifier | 300W2 TPA3255 | Class D PFFB | Bass Treble Control | Headphone Out f

Warm tips: 1. The A5 PRO with 2PCS pluggable NE5532 op-amps, can be upgraded by dual op-amps like 2134/2604/5532/2068/muse02 etc. 2. The speaker output, AUX and 3.5mm headphone jack output can work at the same time, and the volume/treble/bass of the three outputs are controlled simultaneously. Features: Brand: Douk Audio Model: A5 PRO Audio input: Bluetooth / Stereo RCA Audio output: Banana speaker jacks / AUX / 3.5mm headphone jack Headphone output power: 500mW/32O Matched headphone impedance: 16-600O Max. output power: 300W*2 (4O) Matched speaker impedance: 4-8O Frequency response: 20Hz-20KHz (1dB) THD+N: 0.003% SNR: =113dB Bass/treble range: 6dB Bluetooth version: 5.1 RCA input sensitivity: 2V AUX rated output level: 3.7V Working voltage: DC 24-48V Dimensions (W*D*H): 130*112*33mm / 5.12*4.41*1.30in Package dimensions (W*D*H): 265*240*65mm / 10.43*9.45*2.56in Net weight: 525g / 1.16lb Package weight: 1.2kg / 2.65lb