Powering Old Infinity towers with Peachtree 125 sky-- with analog EQ

You might consider wiring the speakers in series, all else being equal.

It depends on how you wire it. In series there won't be a problem.

RSIIIa easy to drive..  Try them alone first.. 

I have a few RSIIbs, RS4b and 2 pairs of the first Infinitesimals. I've always been an early RS Infinity guy.. 

Regards

Thanks for the response.. RS111 sound OK.. Big room has poor acoustic qualities, too much glass, tall ceilings etc.. Although I am "soundproofed out" with all necessary dampening, still in need of analog EQ which cant be hooked up with sky 125..Digital EQ programs just does not cut it. Peachtree corporate tells me to pony up for a better amp! Any suggestions?

I'm guessing you are talking about vintage Infinity RSIIIs? RS-3s, not RS 111 (one hundred and eleven)?

Check with the gang over on the vintage Infinity speaker forum on AudioKarma:

https://www.audiokarma.org/forums/index.php?forums/infinity-loudspeakers.129/

Also, to look up specifications, try:

http://www.infinity-classics.de/

It's in German language, but you can usually poke around and find what you need.

Here is a suggestion: Fix the room, not the electronics.  And if that doesn't cut it, from what I read, doing EQ in the digital domain is superior to doing it in the analog domain.  Every analog equalizer I have ever heard does serious damage to SQ, in my opinion.  Also, if your ultimate goal is to use the two pairs of speakers you mentioned in your OP, then I recommend you set them up in your room and listen extensively, BEFORE you evaluate the need for EQ.  (Again, if paralleling two 4-ohm speakers is not recommended with your amplifier, then explore connecting them in series for a net 8-ohm load.) With two pairs of speakers, you will have a lot of flexibility to cure perceived room problems by re-positioning the speakers.