the best amp to run the bass of infinity RS-1b's

Judging from past experiences, i would consider the Classe' and Perreaux long before either of the others. A Sunfire Signature with their factory "low impedance mods" aka "Apogee mods" would also be a good candidate. These are rated at 600 wpc @ 8, 1200 @ 4, etc... Actual clipping power on mine was 780 wpc @ 8 and 1480 wpc @ 4.

As a side note, you better have a healthy AC system if you want any of these amps to work optimally. Any of them will be able to suck a 20 amp circuit dry on momentary peaks if you are standing on them at low impedances. As such, if you haven't already done so, you should get your AC system straightened out first before spending more money on something that you might not necessarily need. My guess is that you probably do need more amplifier than what you have, but assuring consistent power feed to the amps that you already have might be enough to make you think twice about needing an upgrade. Sean
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Hi Darin....I have the same speakers you have! Listen to Sean...he has helped me out quite a bit! I also had Bryston 4B's but went with a Perreaux 2150B because it had a warmer sound that mated well with my set up.
The desire for a more powerful amp led me to the 3150B (Sean's suggestion) and I got it. Although I am in the mist of trying to slove a few problems (hum and funny noises), the amp is quite powerful but still retains the warmth and overall synergy with my tube amps on top.

I will watch this thread closly. Good luck

Rick

Hi there,

Oke I didn't listen to this amp myzelf(jet) but I hear great things about this amp.

The Crown Audio K2 it's 500w 8 ohm and goes all the way down

I'ts price is about 1300/1400 dollars on internet and damping factor is < 3000 Stereo Times had a great review on this amp. I'm gonna use it on the low of my IRS Beta's

It has a better slam than the Krell kma 200 ect...
This of a friend of mine that sold the Krell after listening to the K2

let me know what you gonna do.

greethings

Alex

I purchased a Pereaux 5150b, and suposibly in shipping it was damaged. I hooked every thing up and just got a buzz niose from the speakers. If I turn the pre-amp up to just about full volume the buzz would stay the same but I could just hear the music, maybe only a couple of watts of out put. So I have taken it to a shop and hope they can find the problem. I will let you guys know how things turn out.

A friend runs his RS1b's with a pair of older Krell monoblocks on the bass towers, sorry I don't remember the model, and an ARC D250 on the panels. He dispensed with the trouble prone Infinity crossover and uses a Dahlquist active crossover.

Brian