Integrated Question

you should also llok at a coda csib

this is the most flexibile intwgrated amplifier on the market

the amplifiercan be rebiased to change outut power from 150 watts to 400watts

the lower power versionsoffer more class a power

as the amplifier uses a 4kv mains transformer the csib has tremendous current drive and very deep bass

Dave and troy

V3: 400 watts @ 8Ω

800 watts @ 4Ω

Class A to ~8W @ 8Ω

V2: 250 Watts @ 8Ω

500 Watts @ 4Ω

Class A to ~12W @ 8Ω

V1: 150 Watts @ 8Ω

300 Watts @ 4Ω

Class A to ~18W @ 8Ω

Maximum Current: 130 Amperes peak

Hello @amboguzzi,  If the A3 is significantly better than the A2 it must be amazing, but is seriously more money and now you are comparing to the Boulder etc.  +1 @ghdprentice on the Luxman.  Maybe I did not hear the right one, but it was thin and harsh in comparison to the Soulnote and the Pass I have heard.  I am running my Soulnote with an iFi Nova power cord, Zafvino interconnects, stock power cord on the Altair, and basic 20 year old copper speaker wires.  And it still sounds good!  There is something special about the Soulnote.  It is full and sweet yet still very resolving.

Rooms have positive and negative nodes  where bass notes are increased or decreased in level. This is elementary acoustics! Your listening spot can be in one of those nodes. Use the Stereophile Test CD playing bass tones while you walk around the room. You may have to rearrange all four speakers and listening spot to achieve an acceptable result.

Looks like I am the only one here discussing room nodes for bass. Such ignorance! Sure, go buy another amp - add more watts! LOL! Go buy some wire for use as a tone control! LOL! 

The flattest bass response in a room is having the woofers placed at the boundaries of two surfaces, i.e. the walls and floor. Putting woofers away from surfaces yields the most uneven response. Roy Allison discovered this decades ago and used it to produce a line of speakers with exceptional bass response.