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Marantz MM8003 review
As a stand-alone multi-channel power amplifier or the perfect complement to
the AV8003 preamplifier/processor/tuner, the MM8003 provides Marantz-level
performance to power the most advanced A/V systems. Eight channels. A
massive power supply. Output devices from our renowned Reference products.
Easy connectivity. Flexible, configurable operation. Multi-channel has
never been this easy. Or this good. What else would you expect from
Marantz?The MM8003 power amplifier produces 140 watts of high current
output from each of its eight channels. And this is the "real
deal", measured across the full audio bandwidth (20 Hz – 20 kHz) at
8 ohms with less than 0.08% THD! In practical terms, this makes the MM8003
an ideal amplifier for a "7.1" system even if that system
includes a high quality passive "in-wall" subwoofer.
Alternatively, you can opt for stereo output to each of four different
rooms and turn each room on and off individually! How’s that for
flexibility? The massive power supply includes a multiple-secondary
toroidal transformer rated at 600 VA and 100,000 µF of custom-designed
capacitors mounted in copper-plated, anti-vibration brackets. Critical
circuit components from WIMA and other world-class suppliers were chosen
only after extensive auditory evaluation. The LAPT Hyper Power devices are
the same as used in the Reference Series’ acclaimed PM-11S1. Current
feedback topology insures astounding accuracy and control even under
high-drive conditions. Physically, the MM8003’s output stages mount
on an extruded aluminum "thermal tunnel" for efficient heat
dissipation. With four channels on each side of the tunnel and
temperature-sensing forced air cooling, this configuration assures
long-term dependability. Balanced inputs for each channel adhere to the
Audio Engineering Society’s "pin 2 = hot" standard.
Single-ended RCA inputs complement the balanced XLR connections. And you
can choose either balanced or single ended inputs for each channel
individually for easy connectivity. Audiophile grade, gold-plated speaker
outputs insure tight connections to your choice of speaker wire. The MM8003
features a "soft turn-on" circuit that prevents excessive inrush
current from tripping an AC breaker or fuse. In addition, you’ll find
both input and output jacks for DC "trigger" pulses as well as
RC5 jacks for total remote control convenience. The chassis itself is heavy
gauge copper-plated steel for maximum isolation from external vibration as
well as electromagnetic and radio frequency interference. And chassis depth
is only 16" so the MM8003 will fit quite nicely in a conventional
system rack. The subtly three-dimensional front panel adds the classic
Marantz design touch. The physical attributes of extruded aluminum and
glass-reinforced resin combine ideally for a shaped look and that
integrates with any d?cor.
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