Has anyone heard FM Acoustics

Hi Quanmer, glad that you liked them and able to discover that they are at least something special upon first hearing. Spend more time, and I think you will like them even more later.. ;) Three of my most 'happening moments' in 30yrs of audio was first--with FMA, second--exposure to WE 300B SET amps, and third--Tidal speakers.

Yes, I did compare my 611 before purchase with 811, 600A and 800A. (I'm not sure of the model you mentioned however). It was in the early 90s, if memory serves me right, our group of friends all concluded that the resolution series were better, just much more refined overall. Of course the 811 was superior, but unfortunately it was way out of my budget then.

My wild guess is that what you are hearing are probably either :
1) The 611 you demoed is not in its prime condition/serviced recently (well, its a 20yrs old amp)
2) Synergy issue - The Pro series amp better suiting the monitor type speakers you heard them with?

Below is a link from the FMA web, scroll down to about middle, there is a brief summary of differences between their Pro and Resolution series of amps :

http://www.fmacoustics.com/set_misc.html

Best,

Bvdiman, thanks for the info, in fact, the 611 and 801A are both in pristine condition. I was there for 4 hours listening. In the middle of listening session, there is one FMA owner shown up and join my audition, he also compared 801A and 611 before purchasing.

He also choose 801A instead of 611, 801A has more solid bottom end, mid and high are "darker" than 611, sound satge is deeper than 611. 611 is more pleasing to listen in the beginning, But 801A generates more accurate soundstage and more "body" than 611.

The owner of 801A is considering to buy 611, too, he told me that bi-wire is another "dream combo" he could reach another level of music heaven base on his real world experience. He also auditioned 1811, but the price is too steep for his budget, 1811 easily give him both world he is looking for (801A + 611), but bi-wire option can give him both world (95% of 1811) at less than half price of 1811.

810A has fan in the back side, which is noisy when it starts to function, so he decide to place 801A a little bit far from listening position, now he can live with 801A without the annoying fan noise.

Quanmer, thanks for sharing, it could be so as I have not done those comparison myself. However, If you intend to go for a second listen, ask your dealer to possibly step up using 266mkII for next audition. It is more dynamic, fuller and analogue sounding. Overall, Ime, a more effortless, grand and refine presentation compared to the 255mkII, who knows it will alter your amp preference then. ;)

Btw, FMA synergises with Tidal speakers really well, you should at least try request for a home audition so just to know. On the topic of synergy, I am hoping to try out the new soon to be release Tidal Impact amps (that is if my local dealer ever bring one in). Heard they are superb and something quite special too, but most importantly.. would most likely be the perfect match for our speakers.

Quanmer, did you also mean to say bi-amping instead of bi-wiring?

What is up with the new (errrrr -lack of ) styling? They look like built in a sheet metal box from HD Supply, imo. (And an attached power cord - what to do about that one?)