Marantz MM8077

Designed for the ultimate music and movie surround sound experience, the MM8077 7-channel power amplifier is equipped
with the same amplifier technologies that are incorporated in our reference class hi-fi amplifiers, including our unique current
feedback discrete power amplifier stage design, which features a high slew rate that provides a wide bandwidth for the utmost
enjoyment of today’s high resolution audio formats. At the heart of the MM8077 is our high current power supply, which features a massive toroidal power transformer that provides substantial headroom for dynamic peaks along with the ability to handle lower
impedance speaker loads. All output stages feature identical topology for uniform high quality sound across all channels, and the
MM8077 provides the option to choose between balanced (XLR) and unbalanced (RCA) inputs for each channel, for maximum
system configuration flexibility. High current, high bandwidth discrete power transistors can handle short term musical bursts
with aplomb, even into difficult low impedance speaker loads. The MM8077 is rated at 150 watts per channel into 8 ohms for
each of the 7 channels. For the ultimate home theater experience, you can pair the MM8077 with our MM7705 5-channel power
amplifier, which lets you enjoy thrilling 11-channel surround sound with the latest multi-channel audio formats, such as DTS Neo:X.

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Power The Most Demanding Of Systems

Designed for the ultimate music and movie surround sound experience, the Marantz MM8077 7-channel power amplifier delivers power and detail, and is rated at 150 watts per channel into 8 ohms, and 180 watts per channel into 6 ohms.


Toroidal Transformer Power Supply

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

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.


Masterfully Built

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.

Number of Channels7
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
Rated Power Output150W/ch, 8 ohm (20Hz-20kHz, THD 0.08%)
180W/ch, 6 ohm (20Hz-20kHz, THD 0.08%)
Maximum effective output power210W/ch, 6 ohm (1kHz, THD 10%)
S/N Ratio (IHF-A)105dB
Freq. Response (Analog In)8Hz-100kHz (+/- 3dB)
Damping factor100
Voltage Amplification Level29 dB
Power RequirementAC 120 V, 60 Hz
Power Consumption800W (Standby: 0.4W)
Dimensions (W x H x D) 440.0 x 185.0 x 383.5mm(17.32" x 7.29" x 15.1")
Weight18.0kg (45.41 lbs)