Just Purchased Infinity RS2B / RSIIb owned RS 2.5

After listening to the two emims in the 2.5s for 20 years, it is taking time to adapt to the two outer emims playing lower frequency but I am getting use to it. Much better on piano and vocals. The low end is my big problem. If I play at lower volumes the bass is the best I have ever heard, but when I turn it up it definitly gets boomy in my room with the built in shelves and cabnets next to the fireplace...The speakers are half in front of tile on fireplace and half in front of cabnets..two feet away. I opened the cabnets up to put up some stereo stuff in and went back to listen before shutting the doors.....Big difference in bass, total boomy mudd. I am going to take the speakers to a friends house with a solid wall behind them. I think infinity knew the speakers could get boomy and thats why they made the comments in the manual. OK I HAVE A BIG QUESTION. Can anyone tell from the circuit diagram of the bass eq if in the 12 o'clock position it is neutral and not affecting the lower frequencies??? Thanks Larry.

Bill LeGall @ www.millersound.net

I sent him an email and Bill answered at 5:30 am!!!!
FYI Bill Watkins did the refoaming.

Dear Larry,

The manual is correct of course. If they're very boomy, it could mean that they were incorrectly refoamed, using the incorrect-tension material. The other reason would be too much cabinet stuffing, or damping added to the cabinet walls. The EQ was made by the good people at Monolithic Sound in CA. It's possible that they may still have an EQ available, though I doubt it. There's a company called DB Systems (location unknown) that can make custom EQ/crossovers. You may want to Google them.

The 2b's are one of the most musical of all Infiniti's, and one of my favorites.

Enjoy the weekend!

Cheers,
Bill

FYI, Believe it or not I was able to find a rs2b low frequency EQ through audiogon. Someone had sold the speaker parts and still had the equilizer. My technician said the mosfets used in the lf equilizer affected both the top end and low end. The mosfets used in the equilizer are called "Channel Enhancment Vertical Power Mosfets" and have not been made in years. With the lf equilizer the speakers sound MUCH! faster. Bass is fantastic no matter what amp I use, tube or transistor and the emims sound much better. I firmly believe the speakers were desingned to have the lf equilizer in line....JUST LIKE THE MANUAL SAYS. http://www.datasheetarchive.com/pdf/3631983.pdf

So my wife and I are bringing in the groceries the other day at our condo when a neighbor comes up and asks, "Do you know anyone who's into really big, old..." so I'm thinking, "Say speakers, say speakers." And my wife is thinking, "Say anything but speakers." And he says, "...SPEAKERS." So of course, I'm like, "Yup, I'm your man." The wife instantly shoots me the death stare.
He takes me to his garage (which he's obviously cleaning out) where he has a pair of these Infinity RS-2B's. I'm not sure what they are right away, but I know they look exceptional, despite the cabinets not being in the greatest shape -- with some ugly water seepage on the bottom of one and some dings in the wood here and there on both. But the woofers and surrounds look tight, the midrange drivers and tweeters are most intriguing, and he has this EQ unit, which he insist is required.
Anyway, these things are destined for the basement, as I already fought hard enough to get the Maggie's in the living room, nevermind trying to get these into the bedroom. So I've got a section of the basement carved out with two layers of insulation and sound absorbing foam on the ceiling, and a thin, industrial carpet on the concrete floor (for home recording purposes).
I get them set up down there and run them through a heavily modded Dynaco PAS-3 (with nice Telefunken 12AX7's) into the Infinity EQ and then a Carver Pro ZR1600, which puts out a more-than-ample 600 watts per side at the rated 4 ohms (off the top of my head, but I'm sure it's up to the job, since the manual I downloaded says they only need between 75 and 400 watts).
Well, they sound AMAZING, but my question is this: Are these the single least efficient speakers ever made? To really make these things sing, I have to turn the Dynaco preamp volume up past its famous 'sweet spot' at around 12:30 to get them to open up. They can take everything the amp gives them, and it sounds very good at the lower volumes. But is the heavy damping on the ceiling having that much of an effect, or are these speakers just that power hungry?
BTW, I was running a pair of Dynaco A25's through the same preamp and two Dynaco Stereo 70's in mono bridged mode in that exact same space before, and they didn't require any extra juice. Granted, the A25's are much more efficient (I think). I think the Infinities are rated at 87 db, and I would have to guess that the A25's are around 91 (without the power handling, obviously).
Either way, I'm very pleased to have stepped into such stellar sounding speakers for FREE. Thoughts???