tomlang

You are correct again. These are copies of the McIntosh transformers made in china, at least they were shipped from there. There have been many companies making exact copies of old tube transformers. Dynakit, Magnetic Components to name two.

There absolutely are some differences! The appearance is different...the chassis color is gold not silver, and there are several misspellings...including the brand name as I pointed out. But the circuit is 100% identical...it uses exactly the same parts with the same values and behaves the same way as the original. But you certainly don't have to believe it. Just because you don't think it is the same doesn't make it not so...especially since you have taken no effort on your own to disprove it. And why would Customs seize it? It is a old tube circuit that was patented in 1949. Nothing about the intellectual property here is proprietary anymore. Carry on.

The clone is 100% the same circuit as the original. In fact, bench tests suggest the clone outperforms the original. I have both an original here and am building a clone using the same parts included in the finished clone except for the power transformer. https://audiokarma.org/forums/index.php?threads/mcintosh-mc275-clone-build.1032698/#post-16483826

For pickup in Augusta, GA only. $250.Here is the thread where these started out. http://www.audiokarma.org/forums/in...similar-to-classic-3d-model-and-build.380361/These are "corner" versions of the University Classic speakers. They sit on a roll around cart and can be taken off of the cart. These have Eminence Legend CB15 woofers, Beta 8A mids, and CDX1-1010 compression drivers on horns. They are complete and the crossovers are inside. These are large speakers each about the size of a refrigerator. The bass bin simply sits on top of the rolling carts. I have no room for these in my new house in Asheville, NC. Here are the measurements in inches: height with stand: 50height without stand (just spkrs): 31depth: 26width: 38They require a large room. They are definitely 'far field' speakers and the more space between you and the speakers the better they sound. These were my garage speakers and I usually powered them with a 35 wpc tube amp. One time I put 300 watts thru them. We heard them several blocks away.

A 5814 is a 12AU7 variant, not a 12AT7.

Message sent, I have a MC225 for sale.

Horatio, excellent research and summary! If you get the Crites, I will anxiously await what you discover!

The bass is kick in your chest kind of bass, not home theatre low but low enough for music it seems to me. At least as low as some Altec Valencia's I once had.

I had good luck with the Eminence Legend CB15 in my University Dean (not a Classic, but very close) build. As noted in the link of the build below, I used an extreme slope crossover from the woofer to midrange. I lack measuring equipment but the amount of "highs" coming out of the horn through the Eminence woofer was substantially more before attenuating them with the 600 Hz crossover. http://www.audiokarma.org/forums/showthread.php?t=380361&highlight=university+dean

What is a Golden Jubilee -- a factory built Jubilee? One thing I noticed with the University Dean speakers I built -- one 15 inch woofer, no passive is the incredible amount of pressure generated inside the doghouse. If you set the panel on real loose or leave out any of the screws it will either rattle like hell or send alot of air in and out of the holes.

Yikes, my aching back! Just what do you suppose that Monster weighs with all the drivers etc in it? I'm guessing north of 150 lbs! Nevertheless you can always climb in it and use it as the sign suggests...

Lord of the Rings

Heli, PM sent. On a related note, have you given any consideration to your mid and/or hi drivers at this time?

If you like I can cut those spacer rings out in a few minutes on my CNC machine and send them to you. I need ID, OD, and if you want the holes drilled the spacing for those also.

If you got the space (sounds like you will when the shop is done) I may be able to bring the University Deans I am finishing up to compare. I'm about 3 hours from you so not too bad. What are you using for HF units? I cannot recommend highly enough the midrange and HF unit combo from QSC as used on the SC-2150 http://www.qscaudio.com/products/speakers/dcs/dcs_sc2150.htm. The crossover is dead simple also.