Fully Balanced Discrete
Class A Amplifier: It utilizes 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. Distortion characteristics are more manageable, enabling the circuit architecture to deliver a wider range of sonic characteristics with greater versatility ^^ HP70 Headphone amplifier has 2 sets RCA and 1 set XLR Balanced Input, 4.4 mm Balanced (TRS) and 6.35 mm Single-Ended Output. Not only can it be used as a headphone amplifier, but also a preamplifier ^^
Preamp: The preamp utilizes two socketed LME49720 dual op-amps. Preamp output can be disabled for seamless switching between headphone and speaker ^^
Input Stage: Fully
balanced topology: Single-ended to balanced conversion circuit allows RCA inputs to benefit from full balanced drive performance ^^
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 ^^ Built-in 30VA low-noise power supply. Also accepts an external 15-18V DC power input