Fosi Audio BS-A1 4.0 Channel Mini Amplifier HiFi Class D Amp USB Player 50W X4

Fosi Audio BS-A1 stereo receiver amplifier support Bluetooth, RCA, and USB input, is compatible with your existing stereo equipment, and provides exceptional sound quality. Product Size: 5.12 inch x 1.38 inch x 5.12 inch. Simple compact design but practical and powerful. Stream Hi-Fi music to your home audio stereo system. 4.0 CH Unique Design: With a select switch, this little amp can drive 2 passive speakers and 2 powered/active speakers at the same time in the RCA mode. Small but Professional: Adopted Fosi Audio advanced BS-A1 power amplifier chip. RMS 50W x 4 output. THD: ≤ 0.01%. Frequency Range: 20Hz - 20kHz (±3 dB). SNR: ≥ 105 dB. Input sensitivity: ≤ 200mV. What You Get: BS-A1 Amp, 24V/4.5A power adapter, AC cord, user manual, 24-Month global warranty, and 24-Hour quick customer service. Specifications Specifications Details Model BS-A1 Output Power 50W x4 Terminating Impedance 2-8Ω Input Mode RCA/Bluetooth/USB Input sensitivity ≤ 200mV Frequency Range 20Hz - 20kHz (±3 dB) THD ≤ 0.01% SNR ≥ 105 dB Device Dimension 5.12 inch x 1.38 inch x 5.12 inch DC Input Range 12-24V Power Supply 24V 4.5A What‘s in the box？ Item Quantity BS-A1 Amplifier x 1 24V 4.5A Power Adapter x 1 AC Cord x 1 User’s Manual x 1