Adopting TDA1308 headphone amp chip, easily to drive most 16-600Ω headphones. Audio output: stereo RCA / 3.5 & 6.35mm headphone jack. Matched headphone impedance: 16-300Ω. 1 USB Headphone Amp. Adopting CM108 receiving chip to transmit to TDA1503 decoding chip via IIS signal and then convert into analog siganl, independent TDA1503 provides higher decoding ability and better sound quality.
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