Marantz SR7007 7.2 Channel Home Theater AV Receiver – B-Stock
Marantz SR7007 supports up to 7.2 channels (Front L/R, Center, Surround L/R, Surround Back L/R, and SW) for surround playback defined by the Blu-ray disc format. The seven amplifier channels built into the receiver are typically used for 7.2 channel surround in the main room, but there are various amplifier configurations to accommodate your home theater setup.
The SR7007 uses a high-speed current feedback amplifier circuit for its preamplifier so that audio signals from a Blu-ray Disc player and other equipment that support high-definition audio formats can be amplified with high fidelity.
HDAMs (Hyper-Dynamic Amplifier Modules)
The SR7007 utilizes Marantz’s proprietary HDAM (Hyper-Dynamic Amplifier Module) circuits for dynamic music and soundtrack reproduction. HDAMs combine the short signal path advantages of ICs (integrated circuit) and op-amps (operational amplifier) with the superior sound quality of separate circuit components.
An HDAM’s size is important, particularly in an A/V receiver where space is very limited. Because HDAMs are discrete designs, Marantz engineers are free to choose the parts best able to preserve the sonic details of your favorite sources.
Digital Signal Processing
The Marantz SR7007 is equipped with a high-resolution SHARC 32-bit Digital Signal Processor (DSP). All elements of the Surround Processor are optimized to the highest standards by the use of selected high performance and discrete components, particularly the A/D and D/A converters and the sophisticated DSP surround decoder.
The SR7007 is equipped with various surround modes to reproduce a variety of surround sound effects, according to the content of the source to be played. The AV surround receiver features Dolby Digital and DTS-HD decoding, as well as offers Dolby Pro Logic audio processing.
Compressed audio formats such as MP3, WMA (Windows Media Audio) and MPEG-4 AAC reduce the amount of data by eliminating signal components that are hard for the human ear to hear.
The M-DAX function generates the signals eliminated upon compression, restoring the sound to conditions near those of the original sound before compression. It also corrects the sense of volume of the bass to obtain richer sound with compressed audio signals.