I have brought my AV-8 up a lot on this board, so I probably sound like a broken record, but I had a question about HTA. I have not found a dac/amp combo that sounds as good as whatever is built into my Nakamichi AV-8 (within my very limited budget), though it's from after the glory days of Nakamichi (or maybe not?). I am thinking about using the AV-8 as a preamp, as it has pre-outs. I haven't gotten a good result yet trying this, but will try a few more times with different amps when I get the chance. I tried running it into a clean-running Adcom GFA-535, and it did not sound as good as the unit itself does alone. Here is the actual question: Is the HTA circuitry built into the processing portion of the receiver, or the amp section (or is that not the way to ask the question)? I had figured the former (that it was part of the DAC/DSP portion, and that the amp section was probably pretty simple and straightforward, and separate). The reason it's important to know is because I figure it is part of what's giving me the great sound, and so running it as a preamp doesn't really make sense if it bypasses the HTA. I have seen some Nakamichi HTA power amps which makes me think the HTA is built into the amp section, though that surprises me. Obviously this would then be a good choice of a power amp, though they're a little outside my budget at the moment. Anyway, curious to know if anyone knows anything, or is wont to speculate. Gracias.