Thanks a lot seth. i find your reply informative for someone like me who can't find much time to research and scrutinize their detailed specs. I guess I have to consider a receiver's preout capability because I may also add a pre-amplifier in the future.
No problem,
One small correction however.
The Marantz SR5001 has 7.1 analog variable outputs (front left, right, center, surround left, surround right, surround back left, surround back right, and a subwoofer [LFE], 8 total outputs). This output array is called a preamplifier output or preout. There are two channel preamplifiers that have just two outputs and there are 5.1 preamplifiers that have 6 channels of output. The purpose of a preamplifier is to switch components, make surround adjustments (assuming it is a surround sound preamplifier, and control levels of output.
Look at it this way, the receiver is 4 principle parts all rolled into one conveniant box. The processor is the first part in a digital interface home theater, it takes a bitstream of data from a source (represented by 0's and 1's like a computer processes data) such as a DVD player, Satelite system, or CD player. It changes the data to an analog form that can be utilized by the preamplifier. The preamplifier is as described above.
The preamplifier supplies the amplifier with low level variable input. The amplifier converts the low level input into high level and amplifies the speakers.
The other 4th part is the tuner, without a tuner such a unit would be regarded as a home theater integrated amplifier.
So if you decide the receiver doesn't have all the power you would need for your application you can opt to get a power amplifier, which come in a variety of flavors.
Hope this was helpful.
