Guys, thank you for your thoughts and input. Muzakk, I couldn't agree more that the higher and lower mids are wired to limit high frequency on the RSIIBs. I guess I got addicted to the beaming midrange of the 2.5s. I thought it was detail. To me this affect dulls the sound with my expensive tube amps and I find myself hooking up a transistor amp to offset this sound. I wonder if Infinity was using Threshold when they were working on these speakers. It seems to be a good match, but I loose the "openness" of a good tube amp. Also, the 10 inch woofers have a hooded sound to me. I miss the watkins 12 inch sound of the 2.5s and 4.5s. I know they were trying to fill in the middle with the RSIIs, but I lost the magic of the older speakers (upper midrange) . Also, I agree the bass EQ is doing alot to alter the frequency response and I am currently using the EQ for the RSIIa which is a much less complicated circuit than the EQ for the RSIIb. It is possible the EQ for the RSIIb is not working as it should. I am still amazed at people that do not realize what the EQ box is doing?? Thanks again. Larry
PS for my fun back-up speaker system I put some 12 inch polypropelene (20-400HZ) infinity car subwoofers in some Dahlquist DQ10s and then I added a Heil midrange/tweeter driver to replace the dome and piezo tweeters....sorry I understand it sounds crazy but I love the sound of these speakers with tube equipment.
PS for my fun back-up speaker system I put some 12 inch polypropelene (20-400HZ) infinity car subwoofers in some Dahlquist DQ10s and then I added a Heil midrange/tweeter driver to replace the dome and piezo tweeters....sorry I understand it sounds crazy but I love the sound of these speakers with tube equipment.