7-Channel Power Amplifier: The Marantz MM8077 seven-channel power
amplifier delivers power and detail, and is rated at 150 watts (into 8-ohms, at
20-20k, with 0.08%, driving 2 channels) and 180 watts (into 6-ohms, at
20-20k, with 0.08%, driving 2 channels). The MM8077 power amp matches perfectly
with the Marantz AV-8801 home theater preamp/processor (642AV8801,
Current Feedback Discrete Amplifier Design: Featuring Marantz's unique
current feedback discrete power amp output stages (with "push-pull circuitry)
that are identical for all channels, the MM8077 is equipped with multiple
high-current discrete power transistors that feature high slew rate along with
low impedance drive capability, for maximum operating bandwidth and solid
performance in order to extract the most detail from today's high resolution
Copper Chassis w/Aluminum Resin Front-Panel: 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. The power amp's front-panel features a combination of
aluminum extrusion and glass-reinforced resin which shields internal circuitry
and absorbs internal and external resonances. The MM8077 features the classic
Marantz ringed porthole display with a blue illumination accent that includes a
display on/off function.
High Power, High Current Power Supply: The high power, high current
power supply features a massive toroidal power transformer along with high power
(71WVDC) filter capacitors with a total 100,000µF capacitance that provides substantial headroom for dynamic peaks along with the
ability to handle lower impedance speaker loads.
Highly Efficient Heat Dissipation: The output devices are
mounted on a 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.
Unbalanced (RCA) & Balanced (XLR) Inputs: For maximum connectivity,
the MM8077 features both unbalanced (RCA) and balanced (XLR) inputs for each of
the seven channels. Each amp channel can be configured to use your choice of
Binding Post Speaker Terminals: The Marantz MM8077 is fitted with
seven pair of binding-post speaker terminals. The binding-post 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
(such as bar wire, single banana plugs, and pin-connectors).
DC Control: The MM8077 features DC trigger input/outputs
(3.5mm) for external power on/off control. The DC trigger input allows the
MM8077's power to be controlled by another device (5-15V). The DC Trigger output
allows the MM8077 to control the power of another compatible device (12V/44mA).
Remote Power Control: Dual RC-5 remote control in/out RCA
jacks allow for connection to a compatible Marantz components. When a compatible
Marantz preamp is connected, this unit's power can be switched on and off
simultaneously with the preamp. The RC-5 input is connected to the preamp, and
the RC-5 output can be connected to other compatible Marantz components; CD
player, DVD player, Tuner, etc.
Flasher Input: The IR flasher input is useful with universal
remote controls; power and mute remote codes are available for the 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 MM8077 automatically switches to standby mode
when there has been no signal for approximately 30 minutes. This prevents power
from being wasted whenever you forget to turn the power off.