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- Mar 31, 2020
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The speakers will play at lower volume through RCA than USB since you're bypassing the internal DAC on the speaker. You need to match volume manually on the speaker lower for USB , higher for RCA or adjust volume on the computer. I don't see a sensitivity setting for analog on the speaker. I would set max or fixed volume from computer with volume at lowest setting on the speaker then adjust on the speaker till SPL can be level matched as close as possible. The Topping dac isn't going to change the sound unless it's faulty.