| Ribbon speakers ...... (go to DIY Ribbons here) http://audiocircuit.com/9109_ribbon_circuit/
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Collecting information about all ribbon speaker brands is almost impossible. Anyway I have decided not to do what someone has done before. Therefore please see the above links. Just be aware, that some consider magnetostatic and the MBL-drivers as ribbons? I have put these speakers in their own cathergories. |
DECCA London
http://www.xs4all.nl/~rabruil/ribbon.html
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| The ribbon loudspeaker started out allmost 50 years ago as a dedicated very high frequency and high quality alternative to the dome and cone tweeter. A true ribbon is defined by a thin ribbed alu-foil which act as the actual voicecoil. Due to the very low impedance this is transformer coupled to the amp. | |
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The ribbon was first introduced by Quad, but a few years later developed by Stanley Kelly. His speaker was the Kelly 30 with a rather small horn which was positioned vertically. His design was taken over by DECCA who manufactured the DK30 (Decca Kelly 30) and the bigger Decca London Ribbon. The ribbon has a very small excursion. The powerhandling is therefore very low: 20 Watts. To much power will break the thin aluminum. Without special measures it can be used from 7 kHz on as the DECCA Super Tweeter shows. |
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http://www.transmissionaudio.com/pages/738782/index.htm Dynamic Propulsion/Ultra Propulsion drive Ribbon
transducers. A new company which make complete speaker systems
as well as really wide-range ribbon transducers to be used without any
impedance matching transformers. The big ones have up to 1" of linear
excursion! |
 One of the smaller ribbons - the 2" mid/high frequency ribbon.
Ultraprop - Worlds first full range ribbon transducer made for headphones! |
| RAVEN
http://www.orcadesign.com/companys%20products/ravendrivers/raven1.html These Orcadesign ribbons are among the best, and the most (insanely) expensive ribbons on the market. The series comprises 3 models, with the big R3.1 at the top. It features a +100 dB sensistivity and a usable frequency range from 500 to 40.000 Hz. Please note, that the Ravens have a reputation as being very fragile. The ribbon breaks when not crossed over correctly. (Read about the DIY Raven/ESg project below)
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On the right a look inside the Raven R 3.1. What is that in the back (not the transformer)? A 3rd magnet or something else between the righ and left polepiece? |
| Aurum Cantus (Also known as ESG or ARG)
http://www.aurumcantus.com/ The G1 topmodel promises specs that leaves nothing to be desired:: Response 800hz - 40khz /-3db
(Read about the DIY Raven/ ESg-project below) |
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| HLR http://users.argonet.co.uk/business/hsdawson/ The HRL-1 is a hand-made thoroughbred ribbon tweeter/supertweeter of the highest quality intended to fill the void left by the demise of such units as the Decca/Kelly. The traditional criteria for a high-performance ribbon tweeter have been reinstated. With a massive "Alcomax-III" cobalt-based magnet assembly and a minimum-inertia aluminium diaphragm weighing only 0.01gm, the response extends to well beyond 30kHz with useful output being detectable at frequencies beyond 50kHz.
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| SEQUERRA http://www.sequerra.com/electronics/data/index.html Dick Sequerra has been in the forefront of
producing loudspeakers ever since the introduction, in 1976, of the
first T-1 ribbon speaker. The T-1 has become the reference standard for
ribbon speakers. MIT, Bell Labs, Bruel & Kjoer are among the prestigious
institutions now using the T-1. Price US$ 4.000 the pair. |
Mk IV signature loudspeaker from Sequerra featuring the T-1 Mk. IV in the top and new midrange ribbon drivers. US$ 75.000 the pair |
| TAD
http://www.pioneerelectronics.com/Pioneer/CDA/Industrial/IndustrialTADProductDetails/ The PT-R9 is a true "high end" ribbon. Covering the range fro, 5-120 kHz with a sensitivity of 97.5 dB is truly amazing - but so is the price! Generally considered as the best high range ribbon tweeter at all. TAD, Technical Audio Devices, introduces model PT-R9 Super
High-Frequency Ribbon Tweeter designed to support today's rigid demands for DVD Audio sound reproduction in both the Professional
Studio Application and Home Theater sound. Featured in this new Wide-range Tweeter is a Super-Light Beryllium Vibration
Board for excellent range of audio reproduction from 5 K to 120 kHz. |
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| Apogee
The first full range ribbons. http://www.cybertheater.com/HW_Reviews/Apogee/apogee_info.html
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| BKS http://www.bksaudio.dk/ukstartst.htm |
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| On the right the BKS 175 supreme - the type no. indicates
the height - 175 cm! The ribbon itself is allmost 1 meter high.
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| Tekzone V64-1 http://www.tekzone-audio.com/homepage/products.htm |
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| This is NOT a ribbon!!! But they claim that it is. At the same time they show quite clearly that it is some kind of hybrid ribbon/dynamic speaker. In fact quite interesting, but why then call it a ribbon? SPECIAL FEATURES: |
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