Marantz 4140 Stereo/Quadraphonic Receiver - Serviced 9/10

US$1,067.06
SKU:
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Marantz 4140 Stereo/Quadraphonic Receiver - Serviced 9/10
Marantz 4140 Repaired : r/vintageaudio
The Marantz 4140 is a vintage 4-channel Quadradial console amplifier produced from 1973 to 1977. That is also an exceptional 2 Channel Receiver.
 
Key Specifications
  • Power Output:
    • 70 watts per channel into 8 Ω (Stereo mode)
    • 25 watts per channel into 8 Ω (Quadraphonic / 4-channel mode) 
  • Frequency Response: 20 Hz to 20 kHz
  • Total Harmonic Distortion (THD): 0.3%
  • Damping Factor: 40
  • Inputs: 2 mV Phono (MM), 150 mV Line 
  • Dimensions: 15-3/8 x 5-3/4 x 14-3/8 inches
  • Weight: Approx. 33 lbs (up to 40 lbs packed)
 
Features & Overview

 

  • Quadraphonic Capabilities: Built with an SQ decoder and CD-4 compatibility for multi-channel surround sound, alongside flexible bridging options to run as a high-power 2-channel stereo unit.