Marantz HDAM Technology: The PM8005 features Marantz's exclusive HDAM
(Hyper Dynamic Amplifier Module) technology, which consists of precision
discrete selected circuit elements on a compact sub-board, instead of
conventional op-amp integrated circuits. Multiple HDAM units are employed,
including HDAM-SA3 and HDAM-SA2 versions that provide gain and buffering
functions, to deliver dynamic and detailed sound quality. The PM8005 features
current feedback technology for ultra low distortion and wideband response,
along with superb musicality.
Fully Discrete High Current Output Stages: The PM8005 is equipped with
multiple high speed, high current power output devices that are each rated at 14
amps of current output capability, providing a very high amount of dynamic
headroom, along with compatibility with lower impedance loudspeakers. For
optimum heat dissipation, the PM8005 is equipped with solid aluminum power
amplifier heat sinks, with a combined total radiating area of 326 square inches,
eliminating the need for fans. The PM8005 is conservatively rated at 70 watts
per channel into 8 ohms, and 100 watts per channel into 4 ohms, for
compatibility with the widest range of loudspeakers.
High Current Power Supply: The robust power supply features a high
current toroidal main power transformer that is rated at 625VA, to easily
provide extra power to the amplifier stage in order to handle demanding short
term peaks. High current Shottky barrier diodes in the rectification stage are
rated at 20 amps, with the ability to handle up to 180 amps peak current,
providing sufficient power reserve to handle virtually any loudspeaker load.
- Momentary-Current Supply: The PM8004's main amp has the
capability to momentarily pass 25 amps or more, providing high-powered drive
to the speakers.
- Short Power Line: To improve the momentary-current
supply, the large current line connections are as short as possible, while
remaining symmetrical. The individual power supply segments are located on
the same heat sinks as the output transistors for quicker response to
Solid Construction: For the utmost stability and protection
from induced vibrations, the PM8005 features a rugged chassis design, which
includes a triple layer bottom plate. To eliminate distortion from stray
magnetic fields, the high current toroidal main power transformer features
- Chassis Design: The amplifier's chassis uses a
triple-layer bottom plate to insure long-term alignment and vibration
control. The unit's front panel uses a combination of aluminum and
glass-reinforced resin to create a distinctive three dimensional appearance.
Indirect reflecting blue LEDs indicate the input selection.
- Double-Shielded Toroidal Transformer: This unit is
equipped with a toroidal power transformer to minimize vibration and leakage
flux, which affects sound quality. The outside is double-shielded, using a
core ring and a short ring.
Versatile Pre-Amplifier Functions: There are six line level inputs, to
handle a wide range of sources, including a dedicated phono input (MM) that
features discrete topology to deliver the utmost fidelity from your favorite
vinyl recordings, and all inputs and outputs are gold-plated for optimum signal
transfer. The Source Direct function bypasses unnecessary circuit blocks for the
straightest path from input to the speaker terminals. Pre-amp outputs let you
connect a separate stereo power amplifier for a bi-amp loudspeaker system, or
for playback in a separate room. The Power Amp Direct input lets you connect the
PM8005 to another component, such as a surround sound processor, for integration
within a multichannel home theater system.
- CD Direct Buffer Amp: An input buffer amplifier exclusive for CD
is mounted near the CD input RCA jacks. This is a high-speed buffer
amplifier made with discrete components, which avoids interference between
right and left channels and can send the signals to the pre-amplifier with
very high fidelity.
- All-Discrete Current-Feedback Phone EQ: The PM8005 provides an
all-discrete, current-feedback phono equalizer optimized for moving magnet
Tone Controls: For precision tonal balancing, we've equipped the
PM8005 with our Tri-Tone control system, with separate tone controls for the
bass, midrange and treble bands (Bass: 50Hz ±10dB, Mid: 900Hz ±6dB, Treble:
15kHz ±10dB), which lets you fine tune the spectral balance to your preference,
and is especially useful with older recordings that suffer from tonal imbalance.
Audiophile Grade Loudspeaker Terminals: Equipped with premium
audiophile grade loudspeaker terminals that are designed to accept a wide range
of speaker cable termination types, the PM8005 also features A/B speaker
switching for increased system configuration flexibility.
Headphone: A standard 1/4" headphone jack is on the front
panel. The speaker outputs are not automatically muted when you plug in
headphones so the speakers must be manually turned off.
System Remote Control: The elegant, ergonomically designed
remote control is equipped with additional functionality, which lets you control
a companion Marantz disc player (such as the
SA8005, sold separately) and a Marantz network audio player. Remote control
input and output jacks let you directly connect the PM8005 to other Marantz
components for easy system control.
Auto Standby: With the Auto Standby Mode turned on this unit
will enter standby mode after approximately 30 minutes (continuous) of no output
from the speakers or headphones.