If you are looking for 2-channels only to drive the top end in a stereo amp or mono-block config, consider the following (there may be more but these are what I had direct experience hearing);
Drove mine with;
- Edge NL12.1 stereo amp (*) (so Edge monos are also a great option)
- Maker Audio NL14 stereo amp (*) (so MA monos are also a great option)
- Esoteric A-02 Stereo Amp (*) Note: would imagine you could not lose with Esoteric M1 monos or S1 or S2 Stereo amps either...
I heard mine with;
- Emotiva Stereo Amp (XPA-2)
- Emotiva Monoblocks (XPA Monos))
I've heard AERIS, Whisper, V and Focus SE with the following;
- Amps noted above
- CODA 60.0 Monoblocks (*) (and prior model)
- CODA 40.0 Stereo Amp (*)
- CODA 15.5 Stereo Amp
- AVM SA 8.2 Stereo Amp (*)
I know other members who use the following and rave about the combo;
- McIntosh MC1.2KW
- McIntosh MC601s
- McIntosh MC452
- McIntosh MC302
- McIntosh MC275 (Tube, note there are many tube amps that pair well)
*Over the years of owning Focus 20/20, FocusHD, FocusSE and AERIS and evaluating Whisper, Helix and V, I know aLOT of people with McIntosh equipment who swore by the combination of McIntosh and Legacy. Same for several guys with Krell 402s, Krell monos, etc...
Others have heard the following with AERIS and V and rave;
- Ayon Audio various stereo and monoblock amps....
- Raven Audio Spirit Stereo
- Raven Audio Shadow Stereo
- Raven Silhouette, Spirit and Shaman Monoblocks...
- many other SET amp fans believe it or not
If I were to guess based upon what I've heard, the new Bryston 7B and 28B (?) amp offerings would be a good pairing as would Accuphase and the new Classe monos, etc....
Note that you'll see some big stereo and monoblock solid state amps up there at various price points. Same with the upper line tube products. This does NOT mean that AERIS needs an uber-expensive amp(s) to drive it; these are only what I've heard directly or know people who have direct experience with the amp/speaker combos.
There are alot of other amps out there you'll see driving Legacy Focus SE, Whisper, AERIS, etc....they are very easy loads to drive and pair well with all the amps above and many more.
Send me a in-mail here if you have further questions. I've had the pleasure of having Legacy speakers (many models in both my HT and 2-channel rigs) for over 11 years....glad to help and speak by phone early next week if this will help.