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Acoustat speakers history

I hated seeing the white plastic honeycomb of the panel. Originally Posted by tigerdog. I now have the opportunity to purchase a pair of functioning Spectra 11s and have a few questions about them. I'm hoping the fine people here can answer: Is the panel run full range, or is it rolled off to cross to the woofer?


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WATCH RELATED VIDEO: Electrostatic speakers and music

Ten Landmark Speakers Worth Collecting


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Please help, if you can. Discussion in ' General Audio Discussion ' started by djnagle , Jan 7, Log in or Sign up.

Brief history of electrostatic speakers Discussion in ' General Audio Discussion ' started by djnagle , Jan 7, Messages: 13, Location: Albuquerque, New Mexico. I stumbled upon this history of electrostatic speakers. Messages: 12, What a great share! I've got the Quad and preamp to mate with those ESL's, however passed them up years ago! Been kicking my back sides ever since. These speakers are so detailed, and when backed with a decent sub Quadman2 , Jan 7, KevinJS likes this.

Messages: 12, Location: San Jose Ca. I had a pair of RTR electrostatics. Also had to have some electro- s headphones.

They sounded great when hooked up properly. I eventually used the final output of the tube of the amp for best configuration. Of course this was high voltage VV but it worked. Only problem was the fine diaphragm would burn up if cranked up too high. I must have gone through a dozen until I got it right.

Those days it was only mono. Messages: Location: WV. Thanks djangle, very interesting, had no idea that electrostats went that far back!! Messages: 3, Location: Kitchener, ON. Not that surprising though since most of the characteristics of electricity were discovered back then. The basic circuit for amplification is still used. Love my Acoustat Monitor 3s. Superampman , Jan 7, Messages: 17, KevinJS , Jan 7, Y Totally. Just had a visual of a pair of ESL63s being used as a weapon.

Perhaps best to leave that one alone then. Messages: 14, Location: In the woods I own history as I have a bunch of those Janszens and a pair of the Quad Ironically my ML don't work correctly.

Last edited: Jan 7, Ohighway , Jan 7, Messages: 39, Location: Eastern Bamalama. Pio , Jan 7, Messages: 18, Location: Kent, Washington. Tom Brennan , Jan 7, Messages: 6, Location: Behind you. DaveVoorhis , Jan 7, Pig intestine and gold foil is Old School! It sounds very organic Hope Mr. Pig doesn't get to view this. Quadman2 , Jan 8, Messages: 11, It's a shame most of those "short histories" end in the 60s since there have been a number of refinements since then.

What originally seduced me was the Dayton-Wright XG8 electrostat. I first heard Dr. With its SF6 gas enclosed space, it ran a very voltage bias and could handle lots of power unlike other contemporary designs. Nelson Pass used to demo his Threshold amps driving stacked Dayton-Wrights in the 80s. A bit later, Jim Strickland of Acoustat pioneered the use of dual step up transformers, each optimized for a frequency range which resulted in a far more linear impedance curve. Acoustats were quite successful over a long period of time and created a number of models.

In the late 90s, Dr. Roger West arrived at a different approach to addressing the inherent beaming, by placing the diaphragm across a cross sectioned grid arrayed in facets of varying height to address inherent diaphragm resonance which provided controlled directivity across a far wider patch.

That approach lended itself to using larger panel configurations and even large arrays without sacrificing coherency. He also used a dual transformer approach using toroidals for improved linearity.

While Martin-Logan abandoned the full range concept and now only makes hybrids, Soundlab produces full range designs capable of virtually flat response down to 30 hz. Ray Kimber used to demo his multi-channel Iso-array recordings at RMAF using massive arrays of Prostat s - each nine feet tall with a 22 degree radiation angle.

He used three per channel in front and doubles in the rear. If you'd like to see them, Google "Ray Kimber Soundlab"! E-Stat , Jan 8, You must log in or sign up to reply here.

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Electrostatic Loudspeaker History

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Acoustat Trans-Nova Preamplifier speakers Acoustat 4's aimed for maximum mid-range accuracy (see historical papers, and a "primer" on tube circuits.

Acoustat Spectra 33 Mk-2123 Electrostatic Speakers; AS-IS (One speaker works)


In the late 's, any loudspeaker was considered exotic. Today, most of us take the wonders of sound reproduction for granted. It was before Thomas Edison had invented the first phonograph. This was a horn-loaded diaphragm that was excited by a playback stylus. In , Sir Oliver Lodge invented a cone loudspeaker, which he referred to as a "bellowing telephone", that was very similar to the conventional cone loudspeaker drivers that we know today. However, Lodge had no intention for his device to reproduce music because in there was no way to amplify an electrical signal! As a result, his speaker had nothing to offer over the acoustical gramophones of the period. It was not until that Dr.

Brief history of electrostatic speakers

acoustat speakers history

Read times. Pages: 1 [ 2 ] 3 Go Down. Electrostatics sound "thinner"? Quote from: Wind Chaser on 1 Aug , am.

A very cool look at high-end audio design for audiophiles and design aesthetes alike. Say what you want about Steve Jobs; he knew good product design when he saw it.

Who designed Acoustat's full range electrostatic speakers?


Speaker collecting is like car collecting. You can use only one pair of speakers or one car at a time. But, you can enjoy looking at them, fixing them, thinking about them — that is what collecting is all about. Here is my list of ten collectible speakers and which characteristic of sound reproduction each embodies. They are all over 30 years old and still sound better than most speakers sold today! This was a voice speaker developed for the Bell Telephone system to provide intelligible, natural-sounding voices in offices, phone booths and railway platforms.

What is the best speaker you have ever owned ?????

Speakers are, of course, the most difficult of all components to evaluate, even in the best of circumstances. In my case, I also have the added burden that two of my main contributors are or were speaker manufacturers, some of whose products you will see as References below. Other associates are distributors of speaker lines. Accordingly, I made the only decision I could:. All the choices in this category are mine alone. What I say to those who question my objectivity is; please closely read the rest of the References first to see my consistency and sensitivities, before making judgments on the few choices you may be understandingly skeptical about. Any final and true judgment concerning these or any specific components requires a personal listening session with them.

With hindsight we see that concurrent with the arrival of such massive amplifiers were new speaker brands, including Magneplanar, Dayton-Wright, Acoustat.

The Roots Of High-End Audio

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Used Acoustat for sale compared from eBay, Craigslist, Amazon,...

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Do not stop bidding for this amazing acoustat. It is now available at bidding at an offer price of just You can collect the product an Acoustat Model 2 RedMedallion Upgrade - picked up these speakers from an old woman that was finally selling her sons speakers. I have been listening to these speakers for.

Dalesford Speakers Limited. A loudspeaker manufacturer based in Pudsey, Yorkshire, England, primarily active as a manufacturer of loudspeaker drivers but did for a time manufacture loudspeaker systems mostly for export, which strangely enough often featured drivers made by other concerns.

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One speaker does not pass a signal, but is known to have been functional less than a year ago. We have not attempted to diagnose or repair. Other Notes: The Acoustat Spectra "has a wide, pleasant dispersion at all frequencies. Each speaker of the mirror image pair contains a narrow line source sector operating at all frequencies bass, midrange, high. Adjacent sectors handle mid-range and low frequencies.

When the exhibition was started, attracted numbers of people that love music. IFA was one of the most famous professional exhibitions. It was held one session every two years. Sponsored together by the famous Berlin International Exhibition Co.




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  1. Kazrale

    And what would we do without your wonderful phrase