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Marantz MARANTZ MM7055 MM7055 5-Channel AV Power Amplifier Power For Your SystemThe MM7055 power amplifier produces 140 wa.. Product #: MARANTZ MM7055 Regular price: $38,900.00 $38,900.00 100

MARANTZ MM7055

ยี่ห้อ: Marantz
รหัสสินค้า: MARANTZ MM7055
พร้อมใช้งาน: 100
น้ำหนัก: 15.20kg
ขนาด: 38.40cm x 44.00cm x 18.30cm

ราคา: 38,900.00  36,900.00

MM7055 5-Channel AV Power Amplifier

Power For Your System
The MM7055 power amplifier produces 140 watts of high current output from each of its five channels. This is “real world” power, too, measured across the full audio bandwidth (20 Hz – 20 kHz) at 8 ohms with 0.08% Total Harmonic Distortion. Among other attributes, this means the MM7055 is capable of long-term power delivery into low impedance speakers.

The Many Faces of Excellence
In practical terms, the MM7055 is ideal for a “5.1” home theater system, whether based on a moderately powered receiver or a surround sound processor. You can use it to power speakers in different areas of your home; stereo reproduction in two rooms plus a mono channel for secondary areas such as a den or kitchen. For more complex home theater systems, the MM7055 pairs with one or several MM7025s to help create a totally immersive “7.1” or “9.1” audio experience.

Inside The MM7055
A massive power supply includes a multiple-secondary EI-core transformer and over 65,000 µF of custom-designed energy storage capacity. Critical circuit components from many world-class suppliers were chosen only after extensive listening tests. Among these, the LAPT Hyper Power output devices were first used in Reference Series components. Current feedback topology insures astounding accuracy and control under high-drive conditions.

A Temperature-Controlled Environment
Physically, the MM7055’s output stages mount on an extruded aluminum “thermal tunnel” for efficient heat dissipation. With temperature-sensing forced air cooling, this configuration assures cool operating temperatures for long-term reliability, even when making full use of the amplifier’s substantial output capabilities.

Flexible Connections
Balanced inputs and single-ended RCA inputs are both supported, and you can choose either type of input for each channel, individually, for easy and flexible connectivity. Audiophile grade, gold-plated four-way binding post speaker terminals insure tight connections to your choice of speaker wire.

Custom Touches
The MM7055 includes input and output jacks for DC “trigger” pulses as well as RC-5 jacks for total remote control convenience, even with legacy Marantz products.

The chassis itself is heavy gauge steel for maximum isolation from external vibration as well as electromagnetic and radio frequency interference. And chassis depth is less than 14½” so the MM7055 will fit quite nicely on a shelf, in a cabinet, or in a conventional system rack with the optional rack mount kit RMK8003MM.

Power. Functionality. Dependability. And classic looks. The MM7055 is, simply speaking, a Marantz.


current feedback

Current Feedback

Current Feedback amplification is a well known, Marantz’ original circuit technology. The Current Feedback amplifier technology fits perfectly with the high requirements set for Super Audio software providing wide-bandwidth, high-speed reproduction. The impedance at the Current Feedback point is limited resulting in a very low phase shift. Marantz receivers and amplifiers equipped with Current Feedback can keep the phase compensation via Negative FeedBack (NFB) to a minimum, resulting in high through-rate, excellent transient response and superb sonic transparency for the full bandwidth. Unlike conventional Voltage Feedback amplification, the Current Feedback amplification makes the power amplifier in-sensitive to difficult loudspeaker loads.
 
customized components

Customized Components

On paper an electrical component might look excellent but the result may fall short of the combined design expectations. Marantz selects the appropriate components for the specific design application. In some cases it’s simply not possible to use standard components that meet the high Marantz standards. These components will then be specially made for Marantz in close cooperation with the Marantz engineers.
 
dc trigger

DC-Trigger

A DC trigger is an assignable voltage output which can automatically control for example an electrical projection screen, lowering it when the DVD input is chosen on the receiver.
 
IR Flasher IN

IR Flasher IN

The IR-Flasher IN is a standardized connection to control the AV system by external IR receivers independent of the infra red control format used. On the IR-Flasher OUT an IR-Emitter can be connected to controlled third brand components. The third connection link to this is the IR-Receiver INPUT which is similar to the IR-Flasher In, but it outputs a voltage to directly feet an external IR-Receiver eye. Please check capability per product in the specification section.
 
Linear drive power supply

Linear drive power supply

LDPS - Marantz own technology to design a power supply capable to follow all details of an audio signal to reproduce the finest sound quality.

 

MARANTZ AV 7055

Multichannel Surround  
Number of Channels 5
Sound Enhancements  
Power Transformer Large Capacity EI
Current Feedback Topology yes
Chassis Steel
Variable X-over Steel
Display Off Blue LED Illumination off mode available
Discrete Amplification yes
IN/OUTPUTS  
OTHER  
Main Amplifier In Balanced & Unbalanced: 8ch (Exclusive use by a selector switch.)
DC Triggers 1 In / 1 Out
D-Bus Remote (RC-5) In/Out 1-1
Flasher In/IR Receiver In/Emitter out 1/0/0
General  
Power Output 140 W 8 Ohm / 170 W 6 Ohm  (20Hz-20kHz, 0.08%)
S/N Ratio 105dB
Freq. Response (Analog In) 8Hz-100kHz (+/- 3dB)
Total Harmonic Distortionr 0.03% (20 Hz - 20 kHz)
Damping Factor 100
Color Black
Front Panel Aluminum/Glass-reinforced resin
Power Requirement AC 120V 60Hz
Power Consumption 400W (Standby: 0.2W)
Dimensions W x H x D (mm.) 440 x 183 x 384
Weight (Kg) 15.2
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