A mistake spending too much on amplification?

Chiho, Whether you hear differences or not, or whether the differences are large or small (to you) depends mainly on what you are trying to accomplish by changing amps and how experienced a listener you are. If you have no specific goals and only want to make your system sounds 'better' then I think Narrod's comments may be appropriate. But don't think that the differences are not there or that they are not important to many others. They can be small to Narrod perhaps but they will be to many others what floats of sinks their boat.

Not to be rude, but I would suggest that you take time out to re-evalute exactly what you are trying to accomplish apart from assembling competent components.

All of this talk about speakers vs electronic's and the ratio of costs between the two leaves me feeling like I just had a Chinese lunch! Hell, its not even an hour later and I'm hungry again! :-)

Speakers are the BIG deal. Best speakers you can afford - absolutely. BUT, and this is no small BUT, when selecting the speaker you must consider not only the quality of its signal but its frequency response.

You can buy a high quality speaker with roll off starting at 45hz and power it with a high quality amp at one price ratio but the ratio changes dramatically if you buy speakers which are 'flat' to 20hz (very expensive) but can be driven by the same electronics as the speakers that roll off at 45hz. And the obverse is true as well.

Ratios, spatios........Its all about a synergistic system, including the source(s). You can actually pay more for a source than an amp or speakers, boy is that out of whack or what! :-)

"spending that money on more music"

Probably the most intelligent conclusion anywhere in this thread! :-)

Do it!