Fidelity Audio Hifi Upgrades

Marantz MA500 Mono Power Amplifiers (pair) - Upgraded


Marantz MA500 Mono Power Amplifiers (pair) - Upgraded


Please call 01302 890855

Been running these amplifiers for the last 6 years with a pair of ATC SCM40 on the rear channel. These upgraded amplifiers sound much better than the original configuration. They sound similar to the Marantz PM17 KI amp but with more dynamic power. I am selling due to moving to active ATC.

List of upgrades
  • All internal mains wire upgraded with woven Kimber cable
  • Removed voltage input selector switch and 3 meters of cheap wire
  • Removed system bus
  • Installed IEC Mains input
  • CMC Silver over Copper RCA input
  • Mundorf Supreme signal input capacitor
  • 99.9999% Silver input wire
  • Upgraded Power capacitors
  • New speaker output binding posts
  • Rated Power 125W / 8 ohms
  • 180W / 4 ohms THD <0.05% @ 8 ohms <0.09% @ 4 ohms
  • Input Sensitivity/Impeance 1.0Vrms / 30K ohms
  • Frequency response 10 ~ 100K (-1dB 1 Watt) Signal to Noise Ratio >116dB
  • Damping Factor (8 Ohms) 200
  • Power Requirement 220 - 240V AC
  • Power Consumption (Full Power at 8 ohms) 230 Watts
  • Weight (lbs) 13.2 lbs (6.0 kg)
M500 black
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