A headphone amplifier with a built-in DAC that uses a discrete 24-bit R2R developed independently as the DAC circuit. The resistance ladder type electronic potentiometer enables precise volume adjustment. The maximum driving power of 1300 mW reproduces sound details in detail. The exterior is good with no conspicuous scratches (Takahashi Nobuyuki)
Maintenance information: 2025.4.27 operation confirmed
Accessories: instruction manual, AC adapter connection cable, original box
Main specifications: digital input USB Type C 1 system RCA coaxial 1 system TOS optical 1 system digital output RCA coaxial 1 system (RCA coaxial input and exclusive) headphone output 4.4 mm balance 1 system 6.35mm single-ended 1 system compatible sampling rate USB: PCM 384 kHz/32 bit, DSD 256 (Native) RCA coaxial: PCM 192 kHz/24 bit TOS light: PCM 96kHz/24bit output 460mW (single-ended, at 32Ω load/ THD+N < 1% /high gain) 50mW (single-ended, at 300Ω load/ THD+N < 1%/high gain) 1300 mW (balanced, at 32Ω load/ THD+N < 1%/at high gain) 220mW (balanced, at 300Ω load/ THD+N < 1%/high gain) Recommended headphone impedance 8 to 350 ohms W147xD133xH32.3mm approx. 420 g