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Questions & Answers
A Hello, Sorry, we do not sale it ,thanks.
A 1. This is a pure power amplifier board, the sensitivity of the input signal is 1.5V rms, if your input signal voltage can't reach this value, it is recommend to add preamp. 2. Rated supply voltage is ±65V, range from ±58 to ±70V, do not over 70V! Positive and negative should be correct. 3. Recommended power supply is ±65V. 4. Recommended 4-8Ω / 10-18inch speaker. 5. Carefully check and ensure the wiring is correct before power connection.
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