In my opinion the advantages to a seperate pre-amp vs. intergrated or receiver is, better quality of sound.
This is acheived by seperate power supplies doing one task.
In a receiver or intergrated you would have a power supply
powering amplifier section along with the pre amp. And in a receiver the tuner or processing circuitry. All these various items can produce their own noise and infect the sound path. Regardless of how much the manufacture isolates the different circuitry I think it is impossible to completely isolate within a single box using a single power supply. The other reason that I like the seperates is that I can mix and match with different brands, models, SS/Tube etc. I provides much more flexability to any system. In my case I use Audio Research Tube pre amp with McIntosh SS amps. I can use my Pre-Pro by utilizing the unity gain in the pre amp. This virtually gives me one system that is two, one HT and 2 channel. I guess another example can be the use of CD transport with a DAC vs. single box CDPs. I don't use a seperate dac with mine but it has advantages that some prefer. Again a good transport can sound quite differently with various DACs. So one can tailor the sound to please his/her ears. We are all different and the more flexabilty we have in a system the better the odds of conquest in our search for the Audio Grail. These are all of course my opinions and other may add to or disagree. One last note is, that I wrote this today and it is not in the archives..yet. Sometimes the same question gets asked but different answers pop in as not everyone reads each thread. The beauty of these forums is there are no rules against asking.
