With one fullrange customdesigned moving coil driver in similarly sized and styled headphones as the heil 422s, these outstanding new 252 conventional cans do not sound conventional. The original great ess heil air motion transformer filter filter amt heil tweeter. The ribbons have a bigger radiating area and throw up a creepily real dipole soundfield that the amt1 doesnt quite have. The most modestly priced system in esss superb amt series, the 10b incorporates the incomparable heil airmotion transformer as its midrangetweeter. Sort sort featured alphabetically, az alphabetically, za price, low to high price, high to low date, new to old date, old to new. Ess amt1 air motion transformer great heil, selected. And phaselinear speakers of decades ago tended to lack ultimate clarity and resolution, however outstanding their basic engineering. The heil is the most revolutionary loudspeaker development of the past halfcentury, recognized throughout the world for its clarity and stunningly realistic sound reproduction. My memory is a bit foggy but i seem to remember the problem with the amt driver was the relatively high moving mass due to the multiple folds of the tweeter. Ess high quality service manuals user owner instruction. I thought they sounded great and they would absolutely rock. Ess factory heil air motion transformer amt tweeter, amtheil 3. They are almost as good as the ess amt 3 rock monitors.
It is between the great heil and the small one in size. 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. In spite of the new technology of everything getting smaller,the amt 4s still sound great. Ess laboratoriesis passionate about making sure you experience sound as clear as light. How sound vintage ess 1a speakers heil air motion transformer loudspeaker system usa duration. Our original is a copy, with some blurred cut off text in the parts list along the right margin. Amt tweeters are the hf driver to use in any serious loudspeaker and monitor designs. So i got it back to the shop, cleaned it up, put the signal to it and viola. Founded in 1972 and based in sacramento, ess produced speakers that featured an innovative midtweeter called air motion transformer designed by dr. 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. If you dont know what the amt driver is, basically it was designed by oscar heil over 40 years ago yes.
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. But actually having bass with planar dipole goodness makes up for it. Ess amt factory heil speaker ribbon diaphragm 6891109 2 in stock. Theres also another possibility as to the identity of your speakers. Its voice coil is a serpentine pattern of precisionetched aluminum, selected for minimal weight and high power handling. 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. This tower loudspeaker shares the same footprint and nearly identical cabinet design as the amt monitor and the everpopular amt3 rock monitor towers. 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. Ess genuine factory heil amt ii speaker ribbon diaphragm, 1.
Given a blindfold test, 100% agree the ess amt monitor is simply the best speaker they have ever heard, period. Ess heil amt diaphragms large yellow kapton new pair. A culmination of ten prototype designs, the ess amt 1 woofer achieves both powerful, impactful, low. They are a little larger than the 1ds but i am guessing the sound would be pretty close. Ess laboratories 12 amt series loudspeakers positive. Original ess amt design, treated paper cone, rubber surround. It is the equivalent in surface area to a conventional cone type eight inch band for better point source dispersion. Its a folded ribbon design utilizing mylar very lightweight bonded to conductive aluminum strips encased in a magnetic enclosure.
My dad remembers ess being the sh in the 70s with the 1bcds and monitors and the great heil ribbon tweeter. The ess heil amt air motion transformer uses revolutionary, and unique, technology that remains unsurpassed and is stateofthe art. Ess laboratories amt10 floorstanding speakers pair. Foam rotted away by the early 90 s so i tossed them. 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. This speaker operates on a different principle than conventional speakers in that it squeezes the air out rather than pushing and pulling the air as cone and electrostatic speakers do. As a result of an expanding home theater market and greater demand for cutting edge speaker systems, ess has experienced a resurgence of interest in its amt midrange.
It was cool and at the time i suppose it was the besthighest end system id ever heard. This auction is for one ess heil amt 1c amt1c speaker crossover. Ess amt 10 inch replacement woofer, 6891012, factory ess amt woofer speaker. The speakers were the infinity 2000a hybrid electrostatic speakers. Unfollow ess amt speakers to stop getting updates on your ebay feed. Ess made a less expensive version of the amt1b called the classic, which was an out and out dog. Ess speakers usa the original great ess heil air motion. Vintage ess amt10b studio monitor speakers heil tweeters 10 woofer 24x14x14 this is the dual plate heil tweeter. This is a special type of transducer, similar in some respects to a planar speaker magnepan, others but with a twist or a fold.
The 10b bookshelf was manufactured around 19741975 on. If you make your own speakers, buy these great airmotion transformer components. Cant say that i have any useful memory of what it really sounded like, i just knew it was way better than my rca. Ess amt factory heil speaker ribbon diaphragm 6891107 11 in stock. Ess connoisseur series amt 450 loudspeaker the absolute. The ess amt1 was very sad when compared to the infinity speakers and the 2000as were not exactly perfect speakers. Ess heil factory tour we get an exciting inside look at. Ess speaker amt heil ribbon replacement diaphragm amt1a, 1b, 1c, 1d, 6891107. Ess speaker amt heil ribbon replacement diaphragm amt1a.
For many years i owned a pair of the larger ess amt3 rock monitor towers. Vintage audiophile ess amt 1 speakers sound excellent. I just hooked them up and they sound good even tho they need some minor attention. Ess laboratories has been a leader in the audio industry since the mid1970s providing home speakers and headphones with sound as clear as light. I have used the ess amt 1b, ess rock monitor, and ess amt monitors since 1979.
The world premier ess 422h heil amt headphones prove that quite well. The original air motion transformer amt, designed by the noted german physicist dr. In 1972ish, i heard a demo of a quadrophonic system, where the front speakers were ess heil amt 1as. Ess amt 1a heil air motion vintage speakers made in usa duration. A very unique feature of these speakers are the air motion transformers amt mounted on the top of the cabinet. The ess heil air motion transformer amt tweeter uses a folded pleated mylar diaphragm of a mere 0. If you recall liking the amt1 from decades ago you ought to hear the latest from ess, as it is well worth an audition. Ess factory replacement woofer, ess amt 10, speaker part. Ess heil amt 1c amt1c speaker crossover 2 available. The woofers appear original and i did not see any damage. When i looked them over the wood is beautiful and in great original condition. Article by jeff poth my most loyal readers will know that i have a place in my heart and my living room for the heil air motion transformer, specifically the big dog amt1.
Welcome to the highend party ess 422h, at affordable pricing. So i found this classic ess amt 10b speaker at a thrift store today. My first speakersess amt 10b with a 10 woofer and a passive radiator in the back. The only difference being the amt 3s uses 2 10 woofers. These two crossovers were pulled from a pair of ess amt 1c speakers the ones that use that famous heil tweeter. The heil is the most revolutionary loudspeaker development of the past halfcentury, recognized throughout the world for its clarity and stunningly realistic. The heil diaphragm, made of soft, quiet mylar to reduce background noice, is bonded with conductive aluminum strips. The ribbon tweeter sounds great, the woofer surrounds are still ok. They are not the most accurate speakers out there but they throw a huge soundstage and preduce a very full and big. Their honest timbre, excellent speed at mid and high frequencies, and. The ess amt1s give me almost all of the ribbon magic, but with decent bass. August 2012 ess heil factory tour we get an exciting inside look at heils driver designs. Look in the yellow pages of your city to find more. If you have the fortune to stumble across any of the ess speakers with heil amt, buy them.
937 168 1232 1493 1207 1351 626 36 46 667 993 224 298 15 1132 1645 111 939 999 1563 638 702 1185 1166 930 1437 1074 992 762 570