Best Used Amps. for Infinity RS-1B Speakers

IMHO, it would be best to use identical amps that are extremely stable into a 4 ohm load, and more power than you are currently using. Do you have a budget?

In my system I use two (2) Mac 275 ver 5 on the top and a Perreaux 3150 on the bass. I am very happy!!!

RWD

Lots of choices really. Some of it will depend on how loud you want to play, the RS1Bs need some power. The 120 watt Brystons are going to run short of power. I run my woofers with a Parasound A21 that's a nice cheap amp that sounds good. I have also run EMIMs with that amp and that works as well. The solid state CJs have a nice tonal quality and if you don't play too loud even a nice tube amp will run the mid panels. EMIMs sound nice with tubes.
What pre-amp are you using?

Hello.
Sorry for the lateness of this answer.I wish to Spend not more than $2500.00
Thanks.
Mike

Hi.
I'm running a BRYSTON -1B as a pre-amp.
Mike

Hello.
I have been looking at used Perreaux. I have ads out for the 5150b and the 3150b,but they are hard to come by.
Do you think the 5150 is overkill for the woof. towers?
Thanks.
Mike

Mike..jump on the 3150B . That's what I have and love it. I have not used or heard the 5150B but it is quite difficult to come by. Another suggestion is the Bryston 4B to "keep it in the family". I also used that as well for the bottom but loved the Perreaux. Search also for mono 7b's (bryston).

Perhaps you've already seen this, but as it appears to offer some sound suggestions for a somewhat unique product, I'll offer it anyway:
http://www.stereophile.com/floorloudspeakers/485infinity