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Saurav:

Saurav:

Saurav:

There is a fairly technical article on tubes vs transistors here: http://www.trueaudio.com/at_eetjlm.htm If you do a Google search on tubes vs transistors, you will find lots of threads covering this topic. Several things that I would like to point out that are sometimes misunderstood IMO...

In my case, I already have a separate 2-channel system that I am happy with. When it was time to get the latest HT formats, multi-channel inputs, etc., I was looking at pre/pros at first. But it has been very clear that for what I need, separate pre-pros are not a good value. I don't need great...

Larry: I'll trade 3 LP's for every one of your CD's. :) Your CD's are collecting dust, no?

Try buying a pre-pro with the same features as a Sony STR-DA5ES, or a HK AVR520, at the same price-point (and availability). You can always use the internal amps for the surrounds.

Lary:

Larry B: For what it's worth, I don't think I have the acuity to identify a "best-sounding" piece of gear from a group of great-sounding gear. But I respect your opinion. My opinion, and it's just that, is that high-end audio is about diminishing returns. Once a certain level of competency...

Understood.

Larry B:

Larry B: Happy that you are not just going with the more expensive one!:)

Lee:

Frank: I have A/B the HK510 vs a Sony ES preamp from the early '90s. I don't think I could detect any difference. I carefully made measurements of the Sony preamp after I bought it 10 years ago, and the measurements were great. I also A/B'ed that preamp vs other SS preamps at that time, and...

Tim: I think you will be happy with using the HK520 as a preamp for 2-channel analog music. You can always add an analog preamp later if for some reason you are not satisfied. Getting a good separate stereo power amp is definitely a good thing, IMO. There are lots of good deals on used stereo...

Saurav: Sorry about mispelling your name. I like Doug Self's approach to power amps. It is very straight-forward, and to me at least, shows that he has extensive experience working with this type of circuits and he understands them well. A lot of what he talked about on that page are fairly...

Suarav: If you want to read about power amp design, check out this paper: Link Removed The key to great solid-state amp design is to minimize distortion of every stage before global feedback is applied. Any paying attention to every detail helps, too.

Global feedback, implemented properly, sounds great:). When not implemented properly, sounds not so great. I don't think it is universally accepted at all that global feedback sounds like crap.

Dennis: The 28.46V rms is the equivalent open-circuit voltage of the power amp. In other words, I am modelling the power amp as an ideal voltage source, whose magnitude is 28.46Vrms, in series with a 0.05 ohm resistor, which is the internal output resistance of the amp. Total load seen by that...