Blues.

I've got the I have to replace the other diaphragm blues.

UPDATE:
No I don't! It was just a bad connection inside. I've never been a great solderer, but today I watched a video on youtube, and got it perfect. All is good.

ESS AMT 3 Rock Monitor Brochure Page.

Thanks to Wally, a good friend of the blog for the scan of the ESS brochure. I'm thrilled to have the actual specs for these awesome speakers.

ESS AMT 3 Rock Monitor Photos.

I removed all the drivers, sanded the cabinets and got almost all the scratches out.

I masked all the wood and sprayed them flat black.

I removed all the masking, oiled the cabinets with teak oil.

I resealed all the drivers before reinstalling.

These speakers are fantastic. They're not overwhelming, as their size might lead you to expect. They're natural and neutral with excellent, tight bass with no boom.

ESS AMT 3 Rock Monitor Update, Saturday.

One is working perfectly! I refoamed the midrange, splicing a 6 1/2" foam down to 6". The tweeter on that one worked outside the enclosure, and the reason it and the mid didn't work inside was simply a blown fuse. I'm now one more midrange refoam and one tweeter diaphragm away from hearing these magnificent beasts in stereo.

Wise wisdom from Frank at The Speaker Shop.

I just got back from The Speaker Shop. One of the Heil tweeter diaphragms has to be replaced, the midrange cones need to be stiffened at the edges, and even Frank didn't have the correct foam size for the midrange in stock. I'm going to try modifying a standard size to fit. Theoretically, I may hear one speaker tonight. Frank Fabian is a resource I couldn't do without, and is very generous with his time and knowledge.

ESS AMT 3 Rock Monitor Update.

Latest update: On the second system, the Heil tweeter isn't working outside the cabinet and crossover, on the first, the problem may just be a fuse.

I've tested all the drivers on the first system outside the cabinet (and crossover). I knew the woofers were fine, and they are, but both the Heil AMT(!) and the six inch midrange driver work perfectly. That tells me it's the crossover that's the problem, and that's definitely something I can sort out.

These just in.

ESS AMT 3 Rock Monitors! Over 100 pounds each. Forty inches tall. Each walnut cabinet contains 2 ten inch woofers, a six inch midrange, and a full size Heil AMT tweeter on top. It took a lot of effort to get them into the Seventies Stereo World Headquarters building. So far, I know that all 4 woofers were replaced with genuine ESS parts a few years ago, that the midrange drivers need refoaming, and on firing one up, there is only sound coming from the woofers. I will open them up soon...could be connection problems, could be crossovers. I love a challenge and after my last ESS experience, I can't wait to hear these.