Multiple Inputs for Different Usages: with 2 groups of RCA and Bluetooth 5.0 inputs and switch knob, can switch multi-way input signal losslessly, 1 group of full-frequency RCA and 1 group of low frequency output, can connect to an amplifier or active speaker and an active subwoofer at the same time. HiFi Clear Sound and Perfect Design: using 2PCS NE5532 op amps responsible for pre-amplification and tone control, 2PCS NE5532 for low frequency output circuit. L2 can greatly improve the sound quality, with wide frequency response, large dynamic, rich details, deep lows, sounds smooth and clear .
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