mikezohsix

I understand I will not have the push pull woofers, and will not have "real" IC20's, but I'll be closer to them then I currently am with my refreshed A:1's. I have considered the push pull, and could print the reverse woofer tube, which I may very well do if I decide to build IC20 replica cabinets. I'm not there yet, this is an interim experiment, that may never go any further. I've played with stacking speakers, running multiples, and have always found the results interesting. You gain some things and lose other things. One of my other plans is to build a pair of either a 16 or 25 driver linear array. More drivers seem to mean more music. Roger Russell's, of McIntosh speaker fame in the same time frame as Roy Allison, last project was the IDS-25 array. Look it up, it's got quite a following, and I may not be remembering correctly, but I think RA was experimenting with them also. Guess where I'm going with all this is I'd like to "correctly" add more drivers to the A:1. And by correctly, I mean use the original drivers (have them), and build the IC20 cross over - which I will do. To house the added four drivers to my "tops", I had first thought about cutting up a set of empty A:1 cabinets my son has, essentially lop the top off, flip it over, and put new top on it, and put it on top of my A:1. I was persuaded not to sacrifice those cabinets, so will build new. So now I'm committed to building new top cabinets, so really just want to see if RA kept the mid to tweet spacing the same as the A:1. I may even build the switchable cross over, haven't decided yet, but if I do, it won't be remotely operated. So, short of the push pull, and the cabinet volume, I'll be as close as can be. Roy is not building these anymore, and as we all know, they're extremely rare, so how would one get close? - I think the path I'm on is pretty solid.

Hi Bill - Think I've contacted you before about your IC20's. The idea of owning something like them has never let go since the day I got my new-to-me A:1's working correctly. Short story on them, they turned up in CL, about 3 hours from my house, but not too far from my dad, so made a trip to pick them up. Got them home, and was very disappointed in the sound, just no life. A friend of mine at work, also active here, Teknofossil, had the schematic. Turned out most of the drivers were not wired correctly, so the "pairs" were fighting each other rather than work together. Fixed the wiring, and love at first listen - they're playing Cat Stevens as I type this! I retired last week, and am looking for projects. Over the last 18 months or so I collected some A:1 tweeters and was given four mids and some common A:1 to IC20 cross over components (again by Teknofossil - thanks Tom!) with the idea that I'd build "tops" for my A:1's that would mimic the IC20, with a new cross over of course. This would be a quick and reversible path to at least get a feel for whether I'd want to build IC20 cabinets. So with all that said, would you provide the center to center distance of the MTTM array from you speakers? This will give me the cabinet dimensions for my "tops", to start my project. Many thanks, Mike