Technics - SU - 300MC Phono Preamplifier





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Technics SU-300MC Phono preamplifier for MC cartridges, battery-powered to minimize noise, tested and operational in excellent cosmetic condition, weight 2 kg, one piece, no extras.
Description from the seller
I present to you a very rare MC cartridge preamplifier powered by batteries to ensure minimum interference, a professional device that you rarely find for sale, a highly coveted item among TECHNICS enthusiasts.
The unit is working (it operates normally in my system) and it is in excellent cosmetic condition with minimal signs of wear perfectly consistent with its age.
All internal components are original, have been checked recently, and still meet factory specifications.
To verify the good cosmetic condition, please study the photos carefully; they are genuine and form part of the description.
Batteries are not included in the sale because they increase the package weight and could be hazardous during shipping.
I attach some technical data found on the internet:
Output gain: 28 dB with a dynamic pickup, 0 dB with a magnetic pickup. Input impedance: 47 Ohm. Equivalent input noise: -150 dBV. Impurity voltage spacing (IHF, A): 78 dB (input 250 µV), 70 dB (input 100 µV). Frequency response: 20 Hz – 20 kHz (+0 dB -0.5 dB). 8 Hz – 300 kHz (+0 dB -3 dB). Distortion factor: 0.001% (with a flat Technics SU-9070 stereo preamplifier). Power supply: DC 4.5 V x 2 (±4.5 V). Batteries: 6 UM-1 (D size) cells, 1.5 V each. Power consumption: 450 mW.
Thank you for reading the description and I wish you all the best with the auction!!!
I present to you a very rare MC cartridge preamplifier powered by batteries to ensure minimum interference, a professional device that you rarely find for sale, a highly coveted item among TECHNICS enthusiasts.
The unit is working (it operates normally in my system) and it is in excellent cosmetic condition with minimal signs of wear perfectly consistent with its age.
All internal components are original, have been checked recently, and still meet factory specifications.
To verify the good cosmetic condition, please study the photos carefully; they are genuine and form part of the description.
Batteries are not included in the sale because they increase the package weight and could be hazardous during shipping.
I attach some technical data found on the internet:
Output gain: 28 dB with a dynamic pickup, 0 dB with a magnetic pickup. Input impedance: 47 Ohm. Equivalent input noise: -150 dBV. Impurity voltage spacing (IHF, A): 78 dB (input 250 µV), 70 dB (input 100 µV). Frequency response: 20 Hz – 20 kHz (+0 dB -0.5 dB). 8 Hz – 300 kHz (+0 dB -3 dB). Distortion factor: 0.001% (with a flat Technics SU-9070 stereo preamplifier). Power supply: DC 4.5 V x 2 (±4.5 V). Batteries: 6 UM-1 (D size) cells, 1.5 V each. Power consumption: 450 mW.
Thank you for reading the description and I wish you all the best with the auction!!!

