I know this is an old thread, but I wanted to comment. As michiganpat said, the AR-94 is not a three-way speaker as some keep suggesting in various threads. It has no midrange driver. Even though the bottom 8" driver model was used in the AR-9, AR-90, and possibly others as a LMR, it was not used as a midrange in the AR-94. The 94 is simply a speaker system with two woofers. It's like an AR-18 (or AR-7) with an extra woofer helping out in the lower frequencies.
If you analyze the crossover, you can see that both woofers are fed from the same high pass filter, and then the coil in the bottom woofer rolls off the response there above about 1kHz. This plus the natural driver rolloff in the response in the high frequencies has it completely out of the picture by about 2500 Hz. So we have two woofers, with one full range, and the other rolled off above about 1kHz. No midrange driver. The high pass filter does very little. It only reduces the gain of the woofers by 5dB below 1kHz and keeps it there. It does not continue the rolloff into the bass region.
I have the original AR-94. I can't speak to the other versions because there are differences in drivers and crossovers, but I will bet that the design is similar.
Also, people have said to swap the positions of the two woofers, as if putting the "midrange" driver in the middle was good. No need for that. AR had it right by putting the main woofer next to the tweeter, and the "aux woofer" at the bottom because it only responds to part of the spectrum and supplements the bass.
The 94 is a good speaker. Don't pass it up if you see one for cheap. BUT, I didn't like how bright and forward it was. So I designed a different crossover, overall taming the tweeter, and providing a gentle 2dB boost in the bass without affecting the midrange frequencies. Yes it is no longer "stock," but it sounds 100% better, without lots of tone control tweaking, and works great in my intended location. I'm sure the skeptics will find fault with the crossover changes, but I'd rather have a speaker that sounds good than one that is original, but unlistenable to my ears. Besides, it's MY speaker and has no resale value at all to me.
