Fosi Audio DA2120A Bluetooth 5.0 Stereo Receiver for Passive Speakers and Active Subwoofer

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2.1 Channel HIFI Bluetooth DAC Amplifier Product Parameters: Power Adapter: 24V/4.5A, DC Input Range: 12-24V Terminating Impedance: 2-8 Ohm MAX Power Output: 50W x 2 THD: ≤ 0.01%, SNR: ≥ 105dB Input Sensitivity: ≤ 280mV Frequency Range: 20Hz - 20kHz (±1 dB) Input Mode: Bluetooth/3.5MM AUX/PC-USB/Optical/Coaxial Bluetooth Transmission Distance: Up to 65 Ft PC-USB/Optical/Coaxial Input Sampling Frequency: 192kHz/24Bit USB System Supported: XP/W7/W8/W10/MAC/Linux

Multi-Function Knob: - Press the button to start up or press 3s to shut down - Press the button to select the input mode - The volume can be adjusted by rotating the knob

Bluetooth 5.0: - External Bluetooth antenna - Up to 65ft (20meter) connection distance in flat area

2.1 Channel Power Amp: BT10A, BT20A, TB10A, TB10D, V1.0B, V1.0G, TDA7498E, ZK-1002, ZK-502T. DAC: Q4, K5 Pro, DS1, DS2. DAC Amplifier: PH04, DA2120A, DA2120C. Subwoofer Amp: TP-02, M01-BT, M02, M03, M04. Phono Preamp: BOX X1, BOX X2, BOX X3, BOX X4. Tube Preamp: P1. Tube Headphone Amplifier: T20, T20X, P2. Class AB Amplifier: T3.

Note: 1: 50W*2 power output suitable for most home speakers 2: In optical input mode, please note that the optical fiber cables should not be folded 3: Optical interface does not support Dolby/DST audio, please turn off Dolby/DST.

If you need a more powerful amp, pick up the BIG BROTHER DA-2120C.

Trouble Shooting: Why do I get loud hiss noise/ no sound coming from the TV via optical input? - Please turn off Dolby/DTS audio on your TV or TV App, DA-2120A does not support Dolby/DTS audio input. And please make sure that the output of your TV is a digital output.

Why the DA2120A is lower power, low sound, and the sound cut in and out? Why do I get an intermittent sound? - Because of the compact design of DA2120A, the positive and negative terminals of the speaker output are very close to each other, so if the + and - of the speaker output are connected or touch together, it will lead to small sound output or no sound output.

Why does the sound crack or make a lot of electric noise? - Please make sure that the audio source and amplifier do not share a common socket because the same socket is common ground, which will lead to common ground crosstalk.

2.1CH Wireless Amplifier with Remote Remote Range: Around 20 ft (6M) Battery Required: AAA x 2 (Not Included) Easy to operate with the remote control

Digital OLED Display Volume/Bass/Treble/Mute/Loudness/EQ adjustment display Input Mode display: Bluetooth/3.5MM AUX/PC-USB/Optical/Coaxial MAX Power Output: 100 Watts

Accurate audio reproduction allows you to enjoy crisp and high-quality amplified audio. Compatible with most devices and speakers systems.

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