What amp with Innersound Eros ?

The best sounding amps I ever had driving the Eros were the Monarchy Audio SE-160 tube/MOSFET monos. The tube amps I tried, including a highly modified Dyna ST-70 and a Music Reference RM-9 Signature did not work that well. I don't think that most tube amps will deal well with the dramatic impedance curve the Eros presents.

I'd look for a good tube/MOSFET hybrid amp like the Monarchy's. I'm now using the NuForce Reference 8 and Reference 9 amps with very good results on other speakers... With a nice tube preamp up front, the NuForce, and other high quality solid-state amps should work well with the Eros. Just make sure the particular amps you select will work well with low impedance, high-capacitance loads. Good Luck.

the innersound amp

Peferably an amp with humongous amount of power. I would try for 1000 watts if you could. I just couldn't get enough power for these speakers with a 300 watt amp. If you play music very quiet then you might be OK with less, but I always felt I was at a lack for power unless using big power amps.

I know this is going to start something on here but I have used several amps with a set of EROS mk2 and now on Mk 3.5.
Bryston 4bst and7Bst. Ear 519 Tube and finally a set of Atma-sphere Ma1 Silvers both as stock and now with resistor and power supply upgrade by Atma-sphere.
The Ma1 OTL amps are without a doubt fantastic with these speakers. The brystons were good and the 7B's are known to drive difficult loads but nothing I have heard sound as good as the silvers. I do use Speltz autoformers with the speakers. I find that I don,t actually need them but I was told they may prolong tube life?
Another heresy is that I no longer use the internal crossover amp on the base speakers. I have found that tube amps sounds better on bass also. I realise what I am saying here but I trust my ears and this was an easy call.
Definition of transparency must be this set up.
Doc