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Signal bandwidth. Flatness of output signal. 1.DPA-2698 Dual Channel Function 1. Maximum output power. Output Amplitude Range. Input Amplitude Range. Output maximum current. Output impedance.
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High Efficiency: A significant upgrade from the BT20A amplifier. To create a different sound quality. SNR≥108dB; THD≤0.005%. Alternatively, you can turn the treble and bass effects to a middle point to listen to the original sound without effects.
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DAC Headphone Amplifier,Bluetooth IC：QCC5215,support LDAC,ATPX-HD,DAC IC :ES9038Q2M support DSD,Op amp IC: OPA1612. Headphone Amplifier, Bluetooth IC：QCC5215,support LDAC,ATPX-HD, DAC IC :ES9038Q2M support DSD,Op amp IC: OPA1612.
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DBX subwoofer power amplifier. Good condition with manual.
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2X(Advanced Bluetooth 5.0 Technology: Experience seamless connectivity with this high-performance subwoofer amplifier board, featuring the latest Bluetooth 5.0 for efficient audio streaming. 1 Bluetooth amplifier module. ).
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HiFi Pre-Amplifiers "Features. 1× Passive Preamp. Has no gain, such as input 1V, the maximum output is also 1V. Lossless transmission, adopting Pure copper gold-plated RCA. High-end texture, adopting full aluminum chassis and knob with CNC maching technology.
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Refer Hetian Mau's Preamp Circuit ，the sound is very good ！. Finished Hetian Mau's Preamp Circuit Preamplifier x 1. 4 way audio input + 1 way audio output. The input and output impedance is constant, the step is 0.5db, and the total attenuation is 63.5dB.
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