POWER AMPLIFIER FOR LOW TO MODERATE LISTENING

I currently have the following system:

1. Conrad Johnson Classic 62 power amplifier 60 watts per channel 

2. Rogue Audio preamp

3. Lumen U2 mini streamer

4. Chord Qutest DAC

5. Martin Logan 11A impressions-90DB efficient

The issue I am having is that I listen at 65 dbs, and at that level the sound is anemic. I know the 11A is a difficult load to drive as it is a hybrid electrostatic which dips below 2 ohms. I am told a high current amp is required, one whose power doubles when you go from 8 ohms to 4 ohms. I am sure that we have all noticed that at the stereo dealer when the db level is high like at 80db plus, the sound is dynamic, when the volume is reduced the life is drained out of the speakers. The Martin Logans are one year old and I am not inclined to sell. There must be an amp that brings life to these speakers at low to moderate listening levels. I experience ear pain when the spl's are high. The other route is a loudness switch/ equalizer to boost bass and treble such as the Schit Loki, which I have never used. My budget for an amp is up to about $8000.00, but I must audition in my home as I don't want to make another costly error. By the way the Conrad Johnson replaced my previous Rogue Audio 100 watt channel tube amp. I would like to get it right if at all possible.

Thank you in advance for your guidance, help and input.