Ess speaker amt heil ribbon replacement diaphragm amt1a, 1b, 1c, 1d, 6891107. A culmination of ten prototype designs, the ess amt 1 woofer achieves both powerful, impactful, low. I am not even close to an expert on ess speakers but if you can help me id these i would appreciate it. Revolutionary today and the standard of comparison for tomorrow, the ess amt 1 is the first authentically new approach to sound generation in fifty years. The woofers appear original and i did not see any damage. And phaselinear speakers of decades ago tended to lack ultimate clarity and resolution, however outstanding their basic engineering. They are a little larger than the 1ds but i am guessing the sound would be pretty close. The only currentday speakers that can even compare to the ess amt monitor is the flagship model produced by martinlogan summit model, with the additional support from an outboard powered subwoofer. The air motion transformer amt is a type of electroacoustic transducer. Their honest timbre, excellent speed at mid and high frequencies, and. Sorry for the overall quality of the soundvideo an iphone is not the best video machine.
Amplifier suggestions for ess heil amt1 speakers stereo. Amt limited edition pair audiophile listening room, audio design. Cast frame treated paper cone magnet assembly 7lbs 5oz passive. It was cool and at the time i suppose it was the besthighest end system id ever heard. The amt limited is the spiritual successor to the legendary amt 1 series. The midrange is handled by a peerless 5in polypropalene cone driver in a short rear firing transmission line. My speakers had a lot more and better bass than the regular amt 1. They are pretty large for a bookshelf speakerabout the size or a little bigger than say dynaco a25s.
The natural crossover point to the khorn clone bass bins is 560 hzwith no crossover filters requiredit crosses naturally at almost 24 dboctave singlehigh amt1 stack. Ess laboratories has been a leader in the audio industry since the mid1970s providing home speakers and headphones with sound as clear as light. Here is a quick vid of my system with the ess model amt1a speakers. The most modestly priced system in esss superb amt series, the 10b incorporates the incomparable heil airmotion transformer as its midrangetweeter. If you have the fortune to stumble across any of the ess speakers with heil amt, buy them. Ess amt 1 repair above is a before and after photo of our ess amt woofer refoam repair service. Beats solo pro wireless noise cancelling headphones more matte collection dark blue previous gallery image. The only difference being the amt 3s uses 2 10 woofers.
The ess heil air motion transformer is in a wholly different league from the soft domes that plague most commercial loudspeakers. If you are not an audiophile, and dont know what these speakers are, i will be happy to fill you in. Unlike the 1a, the 3 had dual 10 woofers and a 5 midbass driver in its own sealed enclosure, topped by the heil amt driver, so it was a 3way. In spite of the new technology of everything getting smaller,the amt 4s still sound great. Every detail of the recorded performance is revealed with a degree of purity never before achieved and completely beyond the ability of all conventional systems. Fluttering speakers bluetooth pictures of pro audio speakers, horn speakers, diy. The heil amt is an extremely heavy driver therefore we encourage you to purchase it directly from ess heil these are remarkable speakers trio15 with heil amt1, especially for the price. They are almost as good as the ess amt 3 rock monitors. The ess amt1c model speakers fit right into that group, and at todays price for a used set, are a killer bargain if you can find someone willing to part with theirs. A bit of dire straits on the ess amt1b speakers youtube. This relieves my rage from the previous ess thread. Just bought them but they are two big for my tiny room. The heil is the most revolutionary loudspeaker development of the past halfcentury, recognized throughout the world for its clarity and stunningly realistic. Get the best deals on ess amt indiana vintage speakers when you shop the.
If the best soft domes are a performance worthy of a great amateur sunday league side, the ess amt is in the european champions league. The speaker company ess electrostatic sound, now out of business, started incorporating these drivers in their line of speakers. There really is no other way to produce sound in such a holographic way, but it does bring in some challengessuch as proper room placement and room size. Suggested by sme sade no ordinary love official music video. If i flipped my bass bins, the distance is reduced to 17. The amt is a fantastic sounding tweeter and great for diy projects.
Ess speaker amt heil ribbon replacement diaphragm amt 1a, 1b, 1c, 1d, 6891107. The most modestly priced system in ess s superb amt series, the 10b incorporates the incomparable heil airmotion transformer as its midrangetweeter. Our original is a copy, with some text along the right margin cut off. The amt speakers crossed over to 10 inch woofers are not the best implementation and sound result as the tweeter is crossed over too low around 800hz creating a midrange quality gap in tweeter vs woofer. Direct replacement wood grill for amt 1a, 1b, 1c, 1d. This time i really took them apart in an attempt to maximise them. Could you fashion a diy panel for the pure audio project speaker as. I just hooked them up and they sound good even tho they need some minor attention. Both front woofers have been refoamed also rear passive woofers have brand new foam. I bought a pair of ess amt 1 towers in the fall of 74. Oct 31, 2018 ess amt limited, powered by the great heil and 12 drivers. Factory replacement ess speaker parts, diaphragms, woofers, and passive radiators. We have replaced the foam edge, and realigned the voice coil assembly for correct factory specifications and performance.
He really wants to stick with an integrated and i suggested a valve amp might be a good choice. See more ideas about audio speakers, audio and loudspeaker. However, i will ship them if necessary, which means heavy cardboard boxes with 1 slab foam on all sides, top and bottom. The ess amt 1c model speakers fit right into that group, and at todays price for a used set, are a killer bargain if you can find someone willing to part with theirs. Ess laboratories 12 amt series loudspeakers positive feedback. The amt 1 combines the original ess heil airmotion transformer with a specially developed teninch woofer that has an oversize, deepdrawn frame and high gauss magnet assembly for long, linear excursion at the highest possible acceleration.
And the amt driver air motion transformer is a sight to behold. Double stack ess amt1 with wingspossible kit for heritage. When i looked them over the wood is beautiful and in great original condition. Given a blindfold test, 100% agree the ess amt monitor is simply the best speaker they have ever heard, period. Caudillo and a small team of craftsmen painstakingly recondition and upgrade ess speakers from all over the world in addition to making authentic and made to order amt1 models. Original great ess heil air motion transformer i large. This tower loudspeaker shares the same footprint and nearly identical cabinet design as the amt monitor and the everpopular amt3 rock monitor towers.
The ts uses a kef 12x9 flat piston driver in a four foot long floor ported transmission line woofer. We sold a lot of the ess amt1s right from the start and i acquired a pair of the heil amt tweeters along with a couple of epi 8 woofers from the 100s original butyl rubber. The key to the system is the design of its patented, doublesided diaphragm and its magnetic components that concentrate the sound unknown in conventional transducers. Vintage ess hd highdynamic series speakers 8 pair excellent working condition. In the 70s, there was nothing that even came close to them at anything like realworld money.
Sound awesome, i had my recent album mastered on a pair of these by a mastering engineer, so they are very transparent and accurate. Unfollow ess amt speakers to stop getting updates on your ebay feed. For many years i owned a pair of the larger ess amt3 rock monitor towers. Normally folded and mailed in ordinary business envelope. Sort sort featured alphabetically, az alphabetically, za price, low to high price, high to low date, new to old date, old to new. I believe the cutoff frequencies are something like 1khz, 1. I just picked up a set of amt 1 speakers about a month ago. The new ess amt le 6 speakers are faithful reproductions of the original amt 1s. Just wanted to add a definite improvement in my system, due to the discussion on page 11 of this thread regarding minimizing the distance between the amt stack and the bass drivers. Their honest timbre, excellent speed at mid and high frequencies, and overall sense of envelopment is pure listening pleasure. Amt limited edition pair audio design, audiophile speakers, hifi. Dec 31, 2017 here is a quick vid of my system with the ess model amt1a speakers. Ess connoisseur series amt 450 loudspeaker the absolute sound. Ess laboratories ess 422h hybrid headphones with air motion technology moving.
After spending some time around the shop, i loaded a pair of amt limited edition speakers into my car and headed home for a listen. In 1972ish, i heard a demo of a quadrophonic system, where the front speakers were ess heil amt 1as. In its original setup, the center to center distance between my amt stack and the 15 drivers was 28. Ess amt1 tower speakers, restored and upgraded classifieds. Vintage electrostatic sound systems ess targa 312 3 way speakers free shipping a pair ess amt heil tweeters, air motion with mount screws. Vintage ess amt 1a heil air motion transformer crossover. Downloads select, click and download schematics, manuals and brochures. The ess heil amt air motion transformer uses revolutionary, and unique, technology that remains unsurpassed and is stateofthe art.
Any questions feel free to contact us at 4108824360. I found online ess have posted the circuit diagrams for these crossovers and all the early amt speakers using the heils. The amt driver, if you arent familiar with it is a folded ribbon speaker, which radiates sound in an omnidirectional way. Look in the yellow pages of your city to find more. The only thing on the back label says ess classic bookshelf speakers. Vintage audiophile ess amt 1 speakers sound excellent. I owned them until 1976 when i got a pair of dahlquist dq10 speakers.
Ess heil amt diaphragms large yellow kapton new pair. Oskar heil 19081994, it operates on a different transduction principle from other loudspeaker designs, such as moving coil, planar magnetic or electrostatically driven loudspeakers, and should not be confused with planar or true ribbon loudspeakers. Ess amt factory heil speaker ribbon diaphragm 6891107. They are not the most accurate speakers out there but they throw a huge soundstage and preduce a very full and big. This does not means it is absolutely the best treble transducer ever made, at. If you make your own speakers, buy these great airmotion transformer components. The original great ess heil air motion transformer filter filter amt heil tweeter. They had the same drivers as the normal ones but the woofer was in a 1 4 wave transmission line cabinet. If you recall liking the amt1 from decades ago you ought to hear the latest from ess, as it is well worth an audition. I grew up with these as my brother brought them back from the navy with him in 1978. Ess laboratories has been a leader in the audio industry since the mid1970s providing home speakers and headphones with sound as clear as. These sound amazing good working condition with some cabinet wear. Also have grills for them but they are a little mismatched as one is from the 1b.