Best Integrated Amp You Ever Heard?


I am tired of the Pre-amp+Power-amp game. So, I am in the quest of finding a really really good integrated amp, preferably used, so I can save some money off the original price.
Right now, I have a pair of Triangle Celius (92db), but I would like the amp to be able to drive other not-so-sensitive speakers.

What is the best integrated amp you've ever listened to?

Thanks,

Josep
josep_hernandez
Agree with Hakuchosan -- Accuphase E450 driving our Magico's with ease and delivering an amazing level of detail. Not missing anything here...
I have listened to much more expensive systems, and wouldn't want to switch.
Would appreciate knowing more about sound quality differences between rega osiris and lfd ncse? Thank you!
My first post. I have the following setup and am extremely pleased with the sound I have. I have not had the opportunity to listen to many other amplifiers. Bryston, Simaudio, Cambridge 840v2, MacIntosh, AR. I have listened to some Harbeth, Vienna, WLM, B&W 801d and a few others over the years. I have come across a few good deals to put together the following which represents the best I've heard to date ( insert laughter here ). Honestly I do listen to a lot of music, several hours per day on average, jazz, indie, classical, folk and still get a great deal of pleasure from it.

Ascendo system F loudspeakers (6 ohm)
Perreaux 150i integrated amp ( 290w into 6ohm according to Martin at Perreaux)
Weiss DAC 2 balanced connection to amp and firewire to Mac mini.
Mac mini serving FLAC and high res FLAC through
Squeezebox duet ( bypassing onboard DAC) OR direct via
PureMusic s/w
Using Mogami 3104 bi-wire

Listening space is a large open room with high ceilings going from 12' to 22' and average 22' wide by 45' long. Main listening area is approx 15'x15'.

I am curious though to get feedback on what I might expect in terms of improvements if I were to consider a different/"better" amplifier configuration? I prefer to stay with solid state. Prefer integrated but would consider separate pre/power if it made enough improvement. Many generate too much heat (class A amps) for my furniture/placement. I get the sense I'd have to spend considerably more $$ to see a marked inprovement. Am I wrong?

Anyone else had exposure to Perreaux 150i?
I did really enjoy my Musical Fidelity A5. I found the sound to very clean, neutral. 250 watts can power almost any speaker. An awesome amp IMHO