Gustard AUDALYTIC HP70 Fully Balanced Discrete Headphone Amplifer - Class A Amplifier LME49720 Dual op-amp Preamp 3 line inputs and 2 preamp outputs Remote Control Support (Silver)

Fully Balanced Discrete Class A Amplifier 4 pairs of power transistors to ensure ample driving power and superior control. The use of discrete components offers greater flexibility, allowing for precise fine-tuning of each stage to achieve optimal performance. This design approach also provides enhanced development potential. Furthermore, distortion characteristics are more manageable, enabling the circuit architecture to deliver a wider range of sonic characteristics with greater versatility. The post-amplification stage can be disabled, allowing the unit to function as a dedicated pure preamplifier.; Can be used as a pure preamp with post-amplification disable option The preamp utilizes two socketed LME49720 dual op-amps.

Preamp output can be disabled for seamless switching between headphone and speaker. Switchable preamp output for headphone/speaker mode;
Input Stage: Fully balanced topology Single-ended to balanced conversion circuit allows RCA inputs to benefit from full balanced drive performance.; Built-in 30VA low-noise power supply. Also accepts an external 15-18V DC power input.; Multi-stage voltage regulation Lower ripple noise and reduced interference for cleaner audio reproduction.; R-2R Relay Volume Control Lossless precision adjustment with guaranteed channel matching across all 4 paths. Adjustable gain from 0 to 28dB to match various headphones