Marantz MM8077 7-Ch Power Amplifier (MM8077)

Marantz MM8077 7-Ch Power Amplifier

The Marantz MM8077 is 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. The Marantz MM8077 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 Marantz 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 Marantz 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 Marantz 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.

Enjoy powerful multi-channel sound with the Marantz MM8077 7-Channel Power Amplifier from Marantz.

This amplifier features a discrete amplification design for robust sonic delivery. Each channel in the amplifier delivers up to 150W of power at 8 ohms and 180W at 6 ohms. It's even equipped with balanced and unbalanced input options, allowing you to connect a wide variety of pre-amplifiers and processors. Furthermore, this amplifier is capable of efficiently driving stereo, 5-channel, and 7-channel home entertainment systems, as well as being a component in larger 11-channel systems.

Current Feedback Discrete Power Amplifier

This Marantz MM8077 model is equipped with a current feedback amplifier section that uses the same push-pull circuit found in Marantz's SM-11S1 Hi-Fi power amplifier. This amp is designed to provide increased operating stability, high-speed, and wide ranging high-density playback. The current/voltage conversion amplification section in the latter part of the power amp is equipped with a Wilson current mirror circuit that amplifies to the high sound range with low distortion.

Large Toroidal Power Transformer

The high power, high current power supply features a massive toroidal power transformer that can handle substantial short term power peaks. The high capacity power supply capacitors, 100,000µ total, contribute to the amplifier's ability to deliver short term bursts of power when needed, which is helpful when driving difficult-to-drive lower impedance speakers.

High-Quality Design

This amplifier is equipped with a chimney-shaped heat sink to efficiently process the heat emitted from each channel along with quiet cooling fans. A high-sensitivity temperature sensor IC is used to control the cooling fans, adjusting the rotation speed to match the amount of heat generated by the amp.

Balanced and Unbalanced Inputs

For installation flexibility and maximum compatibility, each channel on this amplifier is equipped with balanced and unbalanced inputs.

Custom Installation-Ready

This amplifier has an IR flash input that supports custom installations and DC trigger input and output terminals.

Remote Power Control

When the Marantz AV8801 or AV7701 pre-amplifier is connected to the MM8077, the remote power control feature links the power on/off function of the pre-amplifier to the Marantz MM8077.

Low-Power Standby Mode

For environmental and energy-saving considerations, power consumption during standby mode has been reduced to less than 0.4 W

Auto-Standby Mode

The Marantz MM8077 automatically switches to standby mode when there has been no signal for 30 minutes. This prevents power from being wasted whenever you forget to turn the power off.