MC head amplifier designed by Astro Electronics. The low noise design with FET amplification transfers delicate information from the MC cartridge to the MM phono equalizer. The flexible bandwidth and clear positioning that are different from step-up transformers are attractive. The exterior is generally good, but there is a scratch on the knob (Matsumoto Tsuyoshi)
Maintenance information: 2026.6.17 sound output confirmed
Accessories: Power cable (general purpose)
Main specifications: used transformers H-2047x1, H2048x1
Vacuum tube used 12AX7x2 frequency characteristics 10Hz to 100kHz -1db residual noise at 1W, distortion ratio 0.03% input MC1, MC2 output OUTPUT1, OUTPUT2 input impedance (HIGH) 10Ω (10Ω to 50Ω) 47KΩ input impedance 4.7 Ω (4 Ω to 9 Ω) (LOW) 2 Ω (1 Ω to 4 Ω) dimensions W220 × H150 × D260 weight 4 kg