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Marantz® 7 Channel Power Amplifier
Marantz® 7 Channel Power Amplifier 0
Marantz® 7 Channel Power Amplifier 1
Marantz® 7 Channel Power Amplifier 2

Marantz® 7 Channel Power Amplifier

Model #: MM8077
At a Glance
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$99,999.00Save $NaN

Get to know this product.

  • 150W (20Hz-20kHz, 0.08%) Power Output
  • 105dB S/N Ratio
  • 8Hz-100kHz (+/- 3dB) Frequency Response (Analog In)

The power supply features a high current toroidal power transformer along with high power (71WVDC) filter capacitors with a total 100,000µF capacitance to easily handle sharp short-term transient peaks.

Featuring our unique current feedback discrete power amp output stages that are identical for all channels, the MM8077 is equipped with multiple high current discrete power transistors that feature high slew rate and wide operating bandwidth to extract the most detail from today’s high resolution audio formats.

The output devices are mounted on our unique dual extruded aluminum alloy heat sink assembly, configured in a tunnel arrangement that provides both passive and active cooling. The massive heat sinks feature multiple ribbed fins that provide a large passive cooling area, and the assembly is book-ended with a whisper quiet fan that automatically kicks in to provide near silent active cooling when the soundtrack heats up. As the fan is mounted internally directly to the heat sinks, and not externally to the chassis cover as is often the case, even when it’s running, it’s designed to be whisper quiet.

For maximum connectivity, the MM8077 features both unbalanced (RCA) and balanced (XLR) inputs, and each amp channel can be configured to use your choice of input connector. The loudspeaker terminals feature audiophile-grade construction, and are gold-plated for maximum signal transfer, and they can easily handle a wide range of audiophile speaker cable connectors.

The MM8077 features a DC trigger input for external power on/off control, and there’s also dual RC-5 remote control in/out jacks for connection to a compatible Marantz A/V pre-amp/processor.

The copper-plated chassis provides isolation from extraneous noise, and features a multi-layer reinforced bottom panel assembly for maximum rigidity along with triple-layer top cover. Elegantly finished in anodized black satin, the MM8077 features the classic Marantz ringed porthole display with a blue illumination accent that includes a display on/off function.


Sound Enhancements

Current Feedback TopologyYes
Discrete AmplificationYes
Power TransformerToroidal
ChassisCopper Plated


Main Amplifier InBalanced & Unbalanced: 7ch (Exclusive use by a selector switch.)
DC Triggers1 In / 1 Out
D-Bus Remote (RC-5) In/Out1 In /1 Out
Flasher In/IR Receiver In/Emitter out1/0/0

Audio Section

Power Output150W (20Hz-20kHz, 0.08%)
S/N Ratio105dB
Freq. Response (Analog In)8Hz-100kHz (+/- 3dB)


Front PanelAluminum/Glass-reinforced resin
Power RequirementAC 120 V, 60 Hz
Power Consumption800W (Standby: 0.4W)

Misc. Specs

Depth (in.)15.1
Height (in.)7.29
Impedance6-8 Ohms
Width (in.)17.32
Analog Audio(RCA) Input7
Manufacturer Warranty3 Year Parts & Labor
Watts per Channel (Watts)150
Color Finish NameBlack
Product Weight (lbs.)45.41
WarningProposition 65 Warning for California Residents