Legacy Aeris owners which amp do you use and why?

@ geek101
FWIW, my Krell FPB 400cx sounds just fantastic with my old Legacy Audio Signature II speakers.  The FPB series date back to around 2002, but if in good condition sound great.  The 400cx is rated at 400 wpc into 8 ohms, but as you surmise, that may be way more power than needed for the Aeris.  I have seen 400cx listed for ~$4,800.  But Krell also made lower wattage versions of the FPB amps.  I think there was a FPB 200 and FPB 300.  These are now selling for a couple thousand dollars.  These are class A amps!   Some of them have only XLR inputs, so you'll have to investigate.

I would suggest finding a stocking dealer and try out amplifiers in your home with the Aeris.  Otherwise its really not something that anyone can suggest that will satisfy your ears, system and room.  

 What is the budget for a reasonably priced amp?

Is the Line Magnetic not doing it for you? 

As per spending $15k on a $15k speaker, the Aeris are $25k with a Wavelet and we have found on many occassions that good electronics may cost twice what the speakers cost. 

As per sensitivity, vs power, in principle it depends on how loud you are playing, we have found that even with speakers with self amplified bass like the Persona 9H which are 96db or the Aeris more power gets you cleaner with greater peaks when played at louder listening levels. 

and in reality the Aeris are 92db the spec of 95db is measured based on an elevated voltage, and yes 92db is still pretty efficient.

If you want a very cool terrific amplifier for a great price the Synthesis A100t is a 100 watt push pull KT 66 tube integrated which actually has a terrific built in dac for $7,500.00 an absolutetly killer integrated.

The Synthesis will have much greater kick then the SET line magnetic.

Dave and Troy
Audio Doctor NJ

@audiotroy, I have listened to Aeris at RMAF 2018 and bought them. They are on the way along with Wavelet. The reason I got them because of how good they sounded compared to others and I believe in good engineering.

Regarding loudness I play at 85 dB, typical listening levels for me. I understand that we need to account for 15 dB of SPL swing for dynamic music that brings it to no more than 100 dB maximum. I sit no more than 10 feet from the speakers. Give the above numbers I find the following from the calculator: Adjusting the speakers for 92 dB efficiency I see that I do not need more than 30 watts per channel to reach 100 dB of sound. 100 dB is too loud.

So I still do not understand why people are talking about 300 Watts of power. Is it because to get good first 30 watts the amps have to be rated 300 Watts?. I wonder if I missing something basic here. Why do we need zillions of watts?.

As I understand Aeris has bass powered internally so they should be more easier to drive with a decent amplifier.

I am going to try them out with the Line magnetic 508ia and may be A/B them with a class D amp that can put 500 Watt into 4 Ohm and see if I can perceive any difference. At this point I am skeptical I will notice any difference.