Specifications:
Product Model: DA8
Input Methods: OPT (Optical), COAX (Coaxial), Bluetooth (BT), USB
Amplifier Chip: ACM8816 × 2
Receiver Chip: CS8422
Bluetooth Version: Bluetooth 6.2
Optical/Coaxial Support: 16–24-bit, 44.1–192 kHz
Frequency Response Range: 20–20K @ 1kHz ±0.3dB
Bluetooth Chip: QCC3095
Bluetooth Support: SBC/AAC/APTX/APTX-LL/LDAC 16–24-bit, 44.1–96kHz
USB Support: PCM 24-bit, 96 kHz
Frequency Adjustment Range: Treble: 10 kHz ±10 dB; Bass: 30 Hz ±10 dB
Output Power: 300 W × 2 at 4 Ω
Total Harmonic Distortion: 0.02%
Signal-to-Noise Ratio: 108 dB
Dimensions (mm): 150 × 128 × 46
Weight: 0.75 kg
Power Supply: DC 24–48 V
Power Connector Specifications: 5.5 × 2.5
Tip: Please choose the appropriate power adapter.
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Instructions for Use
1. The DA8 output can only be connected to passive speakers; it cannot be connected to active speakers or constant-voltage speakers.
2. The amplifier board is powered by 24V–48V DC. Higher voltage results in greater power output, but the voltage must not exceed 48V, otherwise the amplifier will be damaged. The power connector is 5.5 × 2.5, with the inner pin positive and the outer pin negative.
3. When power is first applied to the amplifier board, the screen will light up and the unit will automatically power on. Turning the knob adjusts the volume; a short press switches the input source; a long press enters the treble and bass adjustment mode, where the knob can be used to adjust treble and bass gain. Alternatively, you can use the remote control for more convenient adjustment. A short press of the left button mutes the sound; a long press puts the unit into standby mode; pressing and holding it again turns the unit back on.
4. Do not connect the negative terminals of the left and right channel outputs together, as this will cause the amplifier to burn out.
5. To use Bluetooth, switch the input to USB/BT. Search for the Bluetooth device name “LSYSAQ-DA8” on your phone and connect to it to play music via Bluetooth.
6. To play via USB, also switch the input to USB/BT mode. The USB input can be connected to your phone’s USB port or a computer; simply plug it in to start playback—no drivers are required. When connecting a phone via OTG to the USB port, use an OTG cable; a charging cable cannot be used.
