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RM-4U.S.A

Manufacture:Music Reference
Original price: JPY 290,000
Price: JPY 63,455 Sold Out
21-30742-04220-00
U.S.A 1980 made
Shop: Osu shop
Arrival: 2021-02-23 19:56:49
Maintened! Tube bulb MC head amplifier using ECC88. Using a three-pole tube selected by examining the characteristics, it creates a sound that is firm and momentum. Recommended for those who want to add a sense of power to the sound. dullness, there is a feeling of use (Sasaki Shota) Maintenance Information: 2021.2.23 Operation confirmed 2020.12.9 Maintenance (operation check, both ch noise, → L, R tube pin contact failure → polishing treatment. Other C, R, Tr etc check → Ok.) Accessories: None Main specifications: Head amplifier for MC Maximum output voltage: 20V (50kΩ) Output impedance: 1.5kΩ (less than 5kΩ when attended) Input impedance: 1 MΩ (maximum) Gain: 30 dB (maximum) S/N ratio: 90 dB Total harmonic distortion rate: 0.1% (100mV output, 10-100Hz) Output bandwidth: 0.72Hz to 700kHz (-3dB, 47kΩ, 20pF Load) Rise time: 5μsec Power supply: AC100V, 50Hz/60Hz Power consumption: 20W Dimensions: W360 × H90 × D180 (mm) Weight: 4kg
　　
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