PT Doug

But when does that apply; to the insert or does that apply to the entire acoustic blanket ?

I used original drivers. Had all drivers tested and built the crossovers to match each speaker, with a flat +/-1.5 db response. Also took out the woofers and had them remounted to eliminate future rattle. Also remove the switches in the back and installed acoustic feet. In my opinion trying to keep old outdated parts isn't going to achieve the original sound of those speakers. The same speaker box with the same drivers matched with a flat crossover will give you the sound you are looking for. It worked for me. Built, installed, and tested professionally. MY Opinion,I HAVE THE AR SOUND and they never sounded this good, NEVER!

When we rebuilt the crossovers for my AR90 we noticed that the tweeter and the mid speakers where about -5db quieter then the mid base drivers.. we couldn't figure why? Maybe it was because of the inserts placed in the acoustic blanket. I took mine out. The inserts made those speakers very directional. We left those inserts out and compensated to make all speakers flat. +/_1.5 db.

the tweeters on the AR90s, when testing just the drivers, are a few db lower then the mid and low mid drivers.Also found that the damping on the face of the speaker changes the effect of those tweeters and mid base .I removed that damping. Put everything together with the 40 year old caps there has to be some effect on the performance of the highs on my speakers. the tolerances from AR where +/-10 db. We are making everything flat to +/_ 2db.

I found that I never used the crossover switches in the back of my AR 90s so I eliminated them. One less thing to worry about. I did install acoustic rubber feet on my AR90s which surprisingly made a big difference. I would move the switches around a lot at first because I didn't like the sound of some vinyl then moved them again for other recordings. When I left them all at zero (in the down position I was most happy so I left them that way. Another thing to consider are the way the woofers are attached to the speakers. We replaced all screws to eliminate rattle. This does happen.

I want the sharpness of a steal gutter an the warmth of a cello in the same tweeter

P.S. Warmth in a tweeter is that an oxymoron

the tone of my text sounds harsh. I didn't mean it to be. I'm really a nice guy, but I balance between warm speakers with imagery (AR90) and clear highs . The Bass is taken care of by my SVS Sub. now I'm worried about the highs in my ARs. Can I have both warmth and clarity in a mid to mid high driver

OK After my complete crossover rebuild I may have to replace some drivers (high end)I'm not a purist hell I'll even go Chinese if need be. I'm only interested in sound quality. I listen to vinyl and also use my AR90s for Home Theater. If one speaker is bad I will probably replace the drivers in the other cabinet for balance. I spent $495 on crossovers I'n not going to waste my money by not getting the most effective driver I can get. Help me please!

Is there anyone that is rebuilding AR90 today. Most of these texts are from 2004

Blood Sweet and Tears is a good test in vinyl

I need to add for my AR90s

is $495 a reasonable price for all new crossovers installed, driver testing and damping as needed. then tweaked in a sound room