Marantz 4230 // Quad Solid-State Receiver

SOLD , now part of a Private Collection
Get the full power of four discrete amplifiers at your disposal. It's an excellent 2-channel stereo amplifier allowing you to funnel the power of all four amplifiers to two speakers. Flip a switch, and send that signal to four channels. This is probably one of the most versatile quad receivers out there.
Production
1973-77
Condition
9/10
Serial No.
7041.0
Orig. MSRP
$499.95
Restoration
  • Full service check
  • Tests beautifully
  • Cleaned controls, switches, and chassis
Factory Specs

Number of Channels 4

Power 30 WPC into 2ch at 8Ω; 12 WPC into 4ch 8Ω

Intermodulation Distortion (SMPTE) < 0.9%

Damping Factor 20 at 20 Hz (stereo); 40 at 20 Hz (quadrophonic)

Input Impedance Phono 47k Ω

Input Sensitivity 2.2 mV( phono); 150 mV (high level)

Phono Frequency Response 30 Hz - 15 kHz, ±1 dB (RIAA)

FM Tuning Range 88 MHz - 108 MHz

FM Usable Sensitivity (IHF) 3.5 uV at 30 dB; 50 uV at 70 dB

FM Selectivity (IHF) 48 dB

FM Capture Ratio 3.0 dB

FM Image Rejection Ratio (106 MHz) 50 dB

FM Total Harmonic Distortion Mono: 0.6%; Stereo: 0.8%

FM Frequency Response ±2 dB, 30 Hz - 15 kHz

FM Stereo Separation 40 dB @ 1kHz; 26 dB @ 10kHz

FM Quadradial Output 300 mV, 15k Ω

AM Tuning Range 540 kHz - 1605 kHz

AM Usable Sensitivity 25 uV

AM Selectivity 25 dB at 1000 kHz

AM Image Rejection Ratio (1400 kHz) 45 dB

AM Bandwidth (-6 dB) 7 kHz

Power Consumption 230 Watts (at rated power); 33 Watts (idle)

Dimensions 17-21/64 x 5-25/64 x 14-3/8 in.

Weight 31.3 lb.

Documentation

Marantz Model 4230 Owner's Manual

The History of Marantz
More than any other person, Saul Marantz defined premium home entertainment. Driven by his passion for music and his accomplishments as a classical guitarist – accomplishments that led to a close friendship with Andres Segovia – he was never satisfied with the “hi fi” equipment of his day. So he built better; first in...
[ Read More ]
Stock No.
7438282096861
Get the full power of four discrete amplifiers at your disposal. It's an excellent 2-channel stereo amplifier allowing you to funnel the power of all four amplifiers to two speakers. Flip a switch, and send that signal to four channels. This is probably one of the most versatile quad receivers out there.

Production

1973-77

Condition

9/10

Serial No.

7041.0

Orig. MSRP

$499.95

Restoration

  • Full service check
  • Tests beautifully
  • Cleaned controls, switches, and chassis

Factory Specs

Number of Channels 4

Power 30 WPC into 2ch at 8Ω; 12 WPC into 4ch 8Ω

Intermodulation Distortion (SMPTE) < 0.9%

Damping Factor 20 at 20 Hz (stereo); 40 at 20 Hz (quadrophonic)

Input Impedance Phono 47k Ω

Input Sensitivity 2.2 mV( phono); 150 mV (high level)

Phono Frequency Response 30 Hz - 15 kHz, ±1 dB (RIAA)

FM Tuning Range 88 MHz - 108 MHz

FM Usable Sensitivity (IHF) 3.5 uV at 30 dB; 50 uV at 70 dB

FM Selectivity (IHF) 48 dB

FM Capture Ratio 3.0 dB

FM Image Rejection Ratio (106 MHz) 50 dB

FM Total Harmonic Distortion Mono: 0.6%; Stereo: 0.8%

FM Frequency Response ±2 dB, 30 Hz - 15 kHz

FM Stereo Separation 40 dB @ 1kHz; 26 dB @ 10kHz

FM Quadradial Output 300 mV, 15k Ω

AM Tuning Range 540 kHz - 1605 kHz

AM Usable Sensitivity 25 uV

AM Selectivity 25 dB at 1000 kHz

AM Image Rejection Ratio (1400 kHz) 45 dB

AM Bandwidth (-6 dB) 7 kHz

Power Consumption 230 Watts (at rated power); 33 Watts (idle)

Dimensions 17-21/64 x 5-25/64 x 14-3/8 in.

Weight 31.3 lb.

Documentation

Marantz Model 4230 Owner's Manual

The History of Marantz

More than any other person, Saul Marantz defined premium home entertainment. Driven by his passion for music and his accomplishments as a classical guitarist – accomplishments that led to a close friendship with Andres Segovia – he was never satisfied with the “hi fi” equipment of his day. So he built better; first in...
[ Read More ]

Stock No.

7438282096861

Marantz 4230 // Quad Solid-State Receiver
Marantz 4230 // Quad Solid-State Receiver
Marantz 4230 // Quad Solid-State Receiver
Marantz 4230 // Quad Solid-State Receiver
Marantz 4230 // Quad Solid-State Receiver
Marantz 4230 // Quad Solid-State Receiver
Marantz 4230 // Quad Solid-State Receiver
Marantz 4230 // Quad Solid-State Receiver
Marantz 4230 // Quad Solid-State Receiver

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