Marantz MM8077 7 Channel Power Amplifier
7-channel Power Amp Packed with Proprietary Marantz Audio Technology
Designed for the ultimate music and movie surround sound experience, the Marantz MM8077 7-channel power amplifier is equipped with the same amplifier technologies found in Marantz's reference class hi-fi amplifiers. It features a unique current feedback discrete power amplifier stage design with a high slew rate, providing wide bandwidth for the utmost enjoyment of today's high resolution audio formats.
At its core, the MM8077 boasts a high current power supply with a massive toroidal power transformer, ensuring substantial headroom for dynamic peaks and the ability to handle lower impedance speaker loads. All output stages share an identical topology for uniform high-quality sound across all channels. The MM8077 offers the flexibility to choose between balanced (XLR) and unbalanced (RCA) inputs for each channel. High current, high bandwidth discrete power transistors are capable of handling short-term musical bursts with aplomb, even with difficult low impedance speaker loads. The MM8077 is rated at 150 watts per channel into 8 ohms for each of its 7 channels. For an enhanced home theater experience, it can be paired with the Marantz MM7705 5-channel power amplifier to achieve thrilling 11-channel surround sound with formats like DTS Neo:X. For simplified control, the MM8077 supports remote power on/off control compatibility with select Marantz A/V pre-amplifiers, such as the AV8801.
Marantz Audio Advantages
- Power Output: 150 W/ch (8 ohms), 180 W/ch (6 ohms) RMS Power (20 Hz - 20 kHz)
- Amplifier Design: Current feedback discrete power amplifier
- Power Supply: High current power supply with toroidal power transformer
- Speaker Drive: Low impedance continuous drive capability
- Sound Quality: Highest sound quality design based on pure surround philosophy
- Components: Marantz reference-grade power supply filter capacitors and high speed, high current discrete power transistors
- Chassis: Copper plated chassis
Connectivity, Flexibility & Expandability
- Input Selection: XLR balanced / unbalanced selection function
- System Options: Wide range of system configuration options
- Control: Remote power on/off control
Convenience & Control
- Display: Porthole display with blue illumination accent
- Terminals: Gold plated, high grade loudspeaker terminals
- Standby Mode: Low-power standby mode (less than 0.4 W)
- Auto-Standby: Auto-standby mode (switches off after 30 minutes of no signal)
- Control Inputs: Flasher input, DC trigger (In/Out), Remote control (In/Out)
Specifications
Audio Section
| Specification | Details |
|---|---|
| Rated power output | 150 W/ch, 8 ohm (20 Hz - 20 kHz, THD 0.08%, two channels driven) 180 W/ch, 6 ohm (20 Hz - 20 kHz, THD 0.08%, two channels driven) |
| Maximum effective output power | 210 W/ch, 6 ohm (1 kHz, THD 10%, two channels driven) |
| Frequency response (1 W, 8 ohm) | 8 Hz – 100 kHz (±3 dB) |
| Damping factor | 100 |
| Input sensitivity/impedance | 1.2 V / 22 kohm (UNBALANCED) 2.4 V / 30 kohm (BALANCED) |
| Signal-to-noise ratio (IHF-A) | 105 dB |
| Voltage amplification level | 29 dB |
General
| Specification | Details |
|---|---|
| Power supply | AC 120 V, 60 Hz |
| Power consumption | 800 W (Operating) 0.4 W (Standby mode) |
| Dimensions (W x H x D) | 17 21/64" x 7 9/32" x 15 3/32" 440.0 x 185.0 x 383.5 mm |
| Weight | 39 lbs 11 oz, 18.0 kg |
Visual Description: Front Panel
The front panel of the Marantz MM8077 features a distinctive Marantz design with a central, circular display surrounded by a blue illuminated ring. To the left of the display is the power button, and to the right are additional control buttons and a display indicator. The overall aesthetic is sleek and modern.
Visual Description: Rear Panel
The rear panel provides comprehensive connectivity options. It includes multiple sets of balanced (XLR) and unbalanced (RCA) input connectors for each of the 7 channels, clearly labeled (e.g., Channel 1 (L), Channel 2 (R), Channel 3 (SL), Channel 4 (SR), Channel 5 (SBL), Channel 6 (SBR), Channel 7 (C)). There are also high-quality, gold-plated speaker binding posts for connecting loudspeakers. Additional connectors include inputs and outputs for DC trigger and remote control signals, a flasher input, and the AC power input socket.
Visual Description: Internal View
An internal view reveals the robust construction of the MM8077. Prominently featured is a large, circular toroidal power transformer, indicative of the amplifier's high-current power supply capabilities. The layout shows well-organized internal components, including power supply filtering and discrete amplifier modules, suggesting a focus on audio performance and reliability.
