DavidR

The Way Back Machine ! I took a screen shot and downloaded it.

Where's Aphenos when you need them. The attached sheet is hard to read but they are NOT 4 ohm loads. The schematic above has all the drivers labelled as 8 ohm.

AR93_1of2.TIF AR93_2of2.TIF AR93_LMR.TIF AR93_tweet.TIF AR93_woofer.TIF AR93_xover.TIF

No problem. You can probably find the original AR drawing and related info in the Library.

I have a 1-2100450B that has the split cone found in the LS and LSi models. New poly-ether surround. 4.6 DCR (from an AR94) I also have a 1210037- 0B that was in an AR9 with a replacement label 200027-0. 4.5 DCR and an old but intact surround.

I might have one. I'll take a look and get back to you.

Still available?

Steve wrote some of the best and interesting posts here on CSP. He had a lot of insight on many audio topics. So sad. Sorry for your loss Ella. It's our loss as well.

This is the FRM-1

Hey Frank MicroAcoustics was a small producer of quality phono cartridges. They got into the speaker business with those Micro-Statics. I believe their next speaker was the MA FRM-1. A 10 inch woofer of good quality (don't remember the make) and a 5-tweeter array with Peerless tweeters. Almost everything else was on the cheap. They sold very well. A friend of mine gave me his pristine pair. Each speaker had a different type of stuffing and a single electrolytic cap for a crossover. I built a crossover for them and put a Miflex KPCU-1 (all copper cap) in the tweeter cap cascade bundle. I added AR stuffing from some AR94s I parted out. I use them with a tube pre and an Emotiva A-100 headphone/flex amp. Vinyl is real nice to listen to. The sad part of the story is when they introduced their FRM-3. Bose went after them for copyright infringement as a knock-off of their 301. Happy part is they won in court and their speaker was said to sound better. Sad part is the big corporation with deep pockets and big lawyers put MicroAcoustics into bankruptcy. That was the end.

Nice, neat work.

Over the years toluene has had its permissible exposure level continually reduced. Not good for your central nervous system, blood, heart, etc. BUT being an aliphatic it smells nice.

Toluene will work well. Wear nitrile gloves. Toluene will pull fat from your body right thru your skin. Attached is a picture of my AR91 woofer that shows the masonite ring.

Yeah, Boston would have worked. Shipping is crazy expensive at the moment. Let us know if you find out about the glue used. Be careful not to destroy the masonite ring on the outer edge (under) of the surround. A good sharp exacto blade might cut the glue on the surround edge glued to the cone. Just take your time.

See if the person you bought them from remembers what glue he used. Acetone is not a typical diluent for adhesives. I work for a large company that did lots of adhesives. Lacquer thinner, toluene and MEK might be better - BUT it all depends on the glue used. Use a well ventilated area to do any work with those solvents. Where do you live? If you are close I'd be willing to take that on for you.