Commercial Massless Speakers
Where they sell things
 Below lists all of the commercial massless speakers found so far. Information on some of the models is very scarce, some detail is in the notes and the rest will be in the articles section.  To qualify to be here the loudspeaker must have been sold to the public at some point - prototypes or demonstration models are in the theory section. There are currently only three complete designs that are currently available to purchase - the HYPERLINK "https://www.acapella.de/products/?lang=en"Acapella Ion TW-1S, Lansche Corona and the HYPERLINK "https://www.vaughnloudspeakers.com/products"Vaugn Loudspeakers version of the Ionovac, all plasma tweeters. Sort the table by clicking the column headings.
Manufacturer Model Versions Year Current Driver type Designer Country Notes
Dukane, Ionavac Ionovac Duk-5,10 - 60 1951 No BX Siegfried Klein US First commercial plasma tweeter
Plessey Ionophone 1956 No BX UK A licensed Ionovac clone
Electro-Voice Ionovac T-3500 1958 No BX US A licensed Ionovac clone
Fane Acoustics Ionofane, Ionofone Fane 601 1960 No BX Faulkus GB A licensed Ionovac clone
Bowers & Wilkins P-2-H P2, P2H 1966 No BX UK Used a Fane 601 tweeter
Hill Plasmatronic Type 1,Model 1-100-A 1972 No BX Dr. Hill US Well known, helium tank, handful made
Tecnac Ionofone 1974 No BX DE Later Klein clone
Phonogen Model-1A 1975 No BX
Corona Acoustic Corona Type 314 - 514 1978 No BX Otto Braun (sold Ionovac in Germany) DE Company 1977-99, now Lansch Audio
Magnat MP -01,02m, Transpuls,MP-X-101 1978 No BX Siegfried Klein DE Well known
Digiplasma IML 1981 No BX SW
Audio Reference Plasmasonic 1 1985 No B/CZ Henri Bondar, Jean-Claude Fourriere FR Headphones, few hundred made - $2000
CSE Inc. A-3000 minus? 1985 ? BX JP Japanese
Acapella (ATR) Ion TW-1 TW-1, TW-1S 1998 Yes BX DE Was 8,500 euro on its own, now only part of full system
Lansche Audio Corona Type 314 - 514 1998 Yes BX Rudiger Lansche, Otto Braun SW Took over Corona Acoustic's designs
Real Onkyo Co. Ltd. Realon Mk 1,2,3 ,TS-5A, PS-2000 1999 ? BX JP Refurb Mk3 listed on Amazon Japan 2014
Viger Audio VA-6, VA-5pro 2012 ? BX Boris G. Viger RU Site no longer up, solid state plasma tweeters
Vaugn Loudspeakers Plasma Signature 2016 Yes BX Jim Jordan US Recreated Ionovac
Driver type Key:

A Arc discharge
B Glow discharge / Plasma
C Corona wind (ion cloud)

X Tweeter
Y Mid-range
Z Full range


Some of my thoughts on the Marketing of these designs.


 
 
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