*6 months warranty. MC head amplifier that strongly boosts old low-power orthophone cartridges. The gain is 34 dB, and the sound goes forward (normal MC boost is approximately around 26 dB). It is not affected by impedance and can be used with any MC cartridge. Easy to use model with PASS function and subsonic filter function. In appearance there is corrosion, dullness. Serial 77037 (Miura Kimiya)
Maintenance information: 2021.7.6 working confirmed
Accessories: no accessories
Main specifications: Boost Ratio 34dB Input Impedance 75Ω Output Impedance 140Ω W80 × H39 × D225mm 1.3 kg
※6 months warranty. MC head amplifier that strongly boosts the old Altphone MC cartridges with low output. Can be used with any MC cartridge, independent of impedance. It is a user-friendly model with PASS function and subsonic filter function (Oikawa Tetsuji)
Maintenance Information: 2021.6.9 Operation confirmed
Accessories: None
Main Specifications: Boost Ratio 34dB Bypass Circuit Input Impedance 75Ω Output Impedance 140Ω W80 × H39 × D225mm 1.3 kg
※6 months warranty. MC head amplifier that strongly boosts old-time orthophone cartridges with low output. Can be used with any MC cartridge, independent of impedance. It is a user-friendly model with PASS function and subsonic filter function. (KONDO Hirotsugu)
Maintenance Information: 2021.4.3 Maintenance (Lch signal line solder fix. (Power supply SW/BY-PASS switch lock mechanism modified)
Accessories: None
Main Specifications: Boost Ratio 34dB Bypass Circuit Input Impedance 75Ω Output Impedance 140Ω W80 × H39 × D225mm 1.3 kg
MC head amplifier that strongly boosts old-time orthophone cartridges with low output. There is also a gain of 34 dB, and the sound comes forward (normal MC boost is roughly around 26dB). Can be used with any MC cartridge, independent of impedance. It is a user-friendly model with PASS function and subsonic filter function. Appearance has small scratches, dullness etc. (Sasaki Shota)
Maintenance Information: 2021.2.21 Operation confirmed
Accessories: None
Main Specifications: Boost Ratio 34dB Bypass Circuit Input Impedance 75Ω Output Impedance 140Ω W80 × H39 × D225mm 1.3 kg
The price has been drastically reduced! 2023/8/30 sales price 34,800 yen 6 month warranty. Yamaha's classic head amp. The sound is delicate and has good graininess in the high frequencies. The characters are easy to use, and have no habit, and can be used by a wide range of people, from beginners to intermediates, and are attractive. The exterior has stains, stains, and scratches. Serial 01606 (Kimiya Miura)
Maintenance information: 2023.8.30 maintained (offset adjustment. Electrolytic capacitor replacement. (Operation check)
Accessories: no accessories
Main Specifications: Impedance 10ω/100Ω Gain Low34dB High14dB Input 1 System Bypass Allowed W150 x H67.5 x D352 mm 3.5 kg
The price has been drastically reduced. 2024/2/27 sales price 34,800 yen Maintained! Yamaha's classic head amplifier. It is a delicate, well-grained sound with good texture in the high frequencies. It can be used by a wide range of people, from beginners to intermediate users, and in addition to the exterior and writing on the back, you can see dullness and a feeling of use (Kobayashi Hitoshi)
Maintenance information: 2024.2.27 Maintenance completed (pin jack repair, replacement of all relevant transistors, capacitors, amplifier section voltage/current adjustment due to migration occurring in the transistors on each board)
Accessories: none
Main specifications: impedance 10 ohm/100 ohm gain low 34 dB high 14 dB input 1 system bypass possible W150 x H67.5 x D352 mm 3.5 kg
Maintained! Yamaha's classic head amplifier. The sound is delicate and has good graininess, with good sound in the high frequencies. The uncharacteristic characters that can be used by a wide range of people, from beginners to intermediates, are attractive. Serial 02570 (Takasaki Atsushi)
Maintenance information: 2023.11.15 Maintained (all power supply section electrolytic capacitors replaced with high ripple types at 105°C products, mode changeover switch contact components mirror polished, oxidation prevention treatment. The DC offset of the amplifier section was readjusted, the distortion ratio was measured 0.03% or less, and the S/N90 dB or higher was confirmed. (Running test.)
Accessories: none
Main Specifications: Impedance 10/100Ω Gain Low34dB High14dB Input 1 System Bypass Allowed W150 x H67.5 x D352 mm 3.5 kg
※ 6 months warranty. Head amplifier for MC cartridges with eye-catching Esprit design in orange side 3 · 40 Ω, with PASS selector so it can be compatible with each cartridge. It is a bit strong and clear sound. Appearance is dull, dirty. Serial 760248 (Hiroshi Kondo)
Maintenance Information: 2021.3.2 Sound quality operation check
Accessories: None
Main Specifications: MC Head Amplifier Frequency Characteristics 6Hz to 500,000Hz Gain 27dB Allowable Input Voltage 12mV Input Impedance 25Ω, 100Ω Power Consumption 7W Size W135 × H80× D345mm Weight 3.2 kg
An MC cartridge head amplifier with an eye-catching Esprit design on the orange side. Since it comes with 3, 40 ohm, and PASS selectors, it is compatible with each cartridge. The strong, clear sound is appealing. Two rubber parts on the sole of the foot are off. The exterior is dull and scratched. Serial 761931 (Kanai Hidetsugu)
Maintenance information: 2023.3.26 sound output confirmed
Accessories: none
Main specifications: MC head amplifier frequency characteristics 6 Hz to 500,000 Hz gain 27 dB allowable input voltage 12 mV input impedance 25 ohms, 100 ohms power consumption 7 W size W135 x H80 x D345 mm weight 3.2 kg
Denon's MC head amplifier with HI/LOW MC boost, PASS, and even high-cut filter functions. Thorough noise countermeasures have been implemented, such as a separate power supply and a magnetic shield on the main unit. As a head amplifier, it is popular for its sound that feels like the good times of analog.
Maintenance information: 2022.12.4 operation confirmed
Accessories: none
Main specifications: input impedance 100Ω voltage gain 32dB/24dB/mm (Pass) [amplifier section] W125 × H68 × D292 mm 1.8 kg [power supply unit] W107 × H65 × D141 mm 1.4 kg