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

I have a pair of infinity rs 1b's and am running them with a pair of bryston 4b-st's. I have a nakamichi dragon 3 piece cd setup with a nakamichi CA7A pre-amp to the brystons. I have 2 pairs of mit MH-750 CVTerminator II cables to the speakers. I am looking at a pair of Bryston 7b's at 500/ch at 8ohms, 800/ch at 4ohms. Classe Ca-400 400/ch at 8ohms, 800/ch at 4ohms. Mcintosh mc2500 500/ch at 8ohms. Perreaux 5150b at 500/ch 8ohms. I like rock,jazz country and classical. All the amps are for sale in my area and I am wondering which would give me the best punch and sound for the type of music i listen to.

Thanks for the help
Darin
darinkperih
infinityaudio
5 posts
 
Has anyone used a Classe CA-2300 amplifier for the bass on the RS1b's? The rest are driven by Manley Neo-Classic 250's via a Steelhead. As I've never had the desire to change the RS1b's so I want to see them operating for many years to come.
dayradebaugh
14 posts
 
I was happy to find this discussion.  I have a pair of Infinity Betas with CJ Premier 8 on top, and Adcom GFA-565's on the bottom.

Couple of years ago the Adcoms blew (leaking caps) and I fixed them.  They just blew again, and they're going out the door.

So I'm shopping for bass amps.   On my shopping list so far are Bryston, Classe, Ayre, Krell.   Any recommendations?

I never, ever, want to deal with the problem of amps blowing up and potentially smoking my speakers on the way out.

Thanks

Day Radebaugh
jafant
10,525 posts
 
Hello dayradebaugh

are you able to demo the Ayre, Bryston, Classe' or Krell?
For sheer high power- Bryston and Krell will be a sonic match for the Infinity speakers.  Happy Listening!
dlcockrum's avatar
dlcockrum
2,105 posts
 
The better Class D amps can work well on the bottom. Just food for thought...

Bill Watkins Sr, inventor of the Infinity Watkins Dual-Drive woofer (the predecessor to the Infinity woofer used in the IRS Beta) once told me he preferred Threshold amps with the big Infinities.

Dave
melbguy1
1,438 posts
 
The Threshold S500 Series II Class A amps with optical bias were a popular choice, with ARC tubes driving the mid/tweeter panels.
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