Design Concept


48V phantom power supply, fully discrete circuit design with a dual-transistor class A buffer circuit structure combined with custom audio transformer, achieving excellent signal fidelity and transmission capabilities.



Features


•  48V phantom power supply, no battery required


•  Megohm-level input impedance


•  Extremely high dynamic headroom, handles high-level instruments with ease


•  Chain port supports direct through and buffered switchable output


•  Audio isolating output transformer


•  48V power supply with LED button indication


•  Fully discrete circuitry


•  Signal phase reverse shifter


•  GND lift shifter



Specifications

Item Code :AD1L
Total harmonic distortion:     0.002%@-5dBu
Phase Deviation:2°@20Hz;  0°@1kHz
Dynamic range:118dB
Noise Floor:Below 0 dBu
Frequency response:20Hz-20kHz(±0.2dB)
Input Impedance:1M Ohms, unbalanced
Output Impedance:200 Ohms, balanced