About this productProduct InformationIf youre looking to add power and fidelity to your stereo or home theater system, then you can take your sound system to the next level with the Marantz MM7055 5 channel power amplifier. This unit delivers 140 watts and 8 ohms of high current output across a full audio bandwidth, and it can play clear, crisp audio in a wide range of frequencies. A frequency response of 8 Hz to 100 kHz enables you to optimize 7.1 or 9.1 audio setups. It can also be connected to a standard 5.1 home theater system. The amp’s signal to noise ratio of 105 dB eliminates unwanted signals thereby allowing clear music even at a high volume. With total harmonic distortion of just 0.08%, the design excels at reproducing both extraordinary transient peaks and fine musical detail. To provide added flexibility, the amp can be used to power two sets of speakers. Stereo reproduction is available with an additional mono channel for a secondary area that doesn’t get much foot traffic. Alternatively, you can set it up between separate areas or rooms that you spend a lot of time in. You can easily move from the kitchen to the living room and back without interrupting your listening experience.The MM7055 boasts a custom designed 65,000 µF energy storage capacity, and an EI core multiple secondary transformer provides an expansive power supply. The amp is capable of delivering long term power into low impedance speakers and receivers. The Marantz is suitable for a 5.1 home theater system when combined with the AV7005 pre processor. For more complex systems, you can pair this unit with more than one speaker to create an impressive 7.1 or 9.1 experience. For ease and connectivity flexibility, the MM7055 supports both single ended RCA inputs and balanced inputs. You can select either type of input for each channel individually. The Marantz sports input and output jacks for DC and RC-5 jacks for convenient remote control operation. Audiophiles can appreciate the four way binding and gold plated post speaker terminals, which ensure tight connections to your speaker cables. The amplifier weighs 34.6 pounds and measures 17 3/8 by 7 1/4 by 16 1/4 inches. Accessories include a remote control and a detachable power supply cord.The user friendly MM7055 utilizes innovative design to maximize audio quality and reliability. The unit features temperature sensitive forced air cooling and efficient heat dissipation from its extruded aluminum thermal tunnel. This design configuration can ensure a cool operating temperature for long term dependability even while taking advantage of its impressive output capabilities. The steel housing excludes radio frequency and electromagnetic interference, and this occurs all while giving it maximum external vibration isolation.The 5 Channel Marantz amplifier combines functionality and dependability in a sleek heavy gauge steel chassis that enhances both form and function. The sophisticated looking design has a minimal footprint at a depth of 14.5 inches and can fit easily in a cabinet. The classic front panel features an illuminated porthole display to complement your home music or theater system. You can enjoy a seamless performance even at high volume levels. Whether listening on headphones or through speakers, you can get clear, uninterrupted sound with your movie soundtracks or favorite music. Marantz MM-7055 5-channel power amplifier. Used for about 3 months with an AC INFINITY cooler on it. In great condition, I moved to a 2.1 system and no longer have a need for a 5 channel amplifier. I no longer have the original box; therefore, extra caution will be taken in packaging and shipping. Please let me know if you have any questions.