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Just Purchased Infinity RS2B / RSIIb owned RS 2.5

FYI Infinity Fans:
I have lusted after some RS2bs for 20 years after loveing my 2.5s. I thought the 2bs would fill in the middle and keep all of the strengths of the 2.5s. In reading the manual, I was unaware that the 2bs had a bass equilizer (not crossover) that was NOT optional. The bass equilizer has been lost. I hooked up my VTL compact 100s with several preamps & the sound was mud in the bass and boring in the emims/emits. One of the emits is even covered 50 percent, the top one in the front. These 2bs sound like monster cable . . . go figure. Monster cable was used in the speakers. Also, it turns out that ONLY the middle emim is hooked to the midrange control. The middle emim is the only one that sounds like the emims in the 2.5...they are running full out. The top and bottom emim are subdued and they are trying to mimic a good dome midrange....yes the lower vocals are better but who cares?? I have lost the magic of the emims. I have had some Infinity Sigmas in my room and one super emim did a better job than these three emims. Last night I hooked up a couple of transitor amps and the sound was MUCH improved... remember what older monster cable did to good solid state stuff? in the 80s. I guess I'm going to stay with threshold but I own several good tube amps that I love to hear the imaging etc etc. I might be nuts but the improvement I have gained with Kimber Kable 4TC and Audioquest jaguar interconects is lost in the old monster cable wire?? I am probably being to hard on these speakers, but I remember a german saying the 4.5s were the best of that vintage. How are the emims controled in the RS1bs?? are they all hooked to the crossover controls?? To be continued. Thanks for reading. Larry
apfdirtdoctor

Showing 1 response by muzakk

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muzakk
3 posts
 
I've had 4.5's and RS11b. The RSllb is far superior. The higher and lower mids are wired to limit high frequency, so vertical dispersion is not beaming. The middle EMIM goes up to a higher frequency. The 4.5 loses focus if you are not at exact center of the midrange. The RSllb does not have that problem.

If you really want the RSllb to be a world class speaker, disconnect the two 10" woofers. Get a 36"h x 24"w 3/4" wood panel and mount an open baffle 15" Eminence Alpha 15 woofer. You'll need an electronic crossover. This will provide a seemless open and box free natural sound to match the EMIMs and Emits. Of course you'll need to biamp. One more thing, the open baffle woofers will only go down to about 50 hz, so add a good sub for the bottom octave. I use a HSU 15"
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