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Audiosphere Research Monitor 18L Speakers For Sale ...
https://www.canuckaudiomart.com/details/649784227-audiosphere-research-monitor-18l-speakers/#:~:text=Similar%20items%20you%20might%20be%20interested%20in%20,%20%20%20%2016%20more%20rows%20
Audiosphere research Monitor 18L | Audiokarma Home …
https://audiokarma.org/forums/index.php?threads/audiosphere-research-monitor-18l.52003/
Location: Ontario, Canada. The Audiosphere 18L was built somewhere between 1982 and 1990 give or take. Built in Toronto region using 18" accordian edge woofers with a 60 oz magnet and two inch v.c. The woofers are enclosed in an air suspension enclosure and if I remember correctly, they had circuit breakers.
Steve's - Audiosphere Monitor 18-L dynamic speaker
http://www.audiocircuit.com/Home-Audio/Audiosphere/Monitor-18-L
The Audiosphere Monitor 18-L is a dynamic speaker. Bob (October 28, 2009): The Audiosphere 18L was built somewhere between 1982 and 1990 give or take. Built in Toronto region using 18" accordian edge woofers with a 60 oz magnet and two inch v.c. The woofers are enclosed in an air suspension enclosure and if I remember correctly, they had circuit breakers.
Audiosphere Research Monitor 18L Speakers For Sale ...
https://www.canuckaudiomart.com/details/649784227-audiosphere-research-monitor-18l-speakers/
Audiosphere Audio Research Monitor 18L Speakers For Sale ...
https://www.canuckaudiomart.com/details/153623-audiosphere_audio_research_monitor_18l_speakers/
Speaker audio sphere research monitor 18L test peak at ...
https://www.youtube.com/watch?v=_twYe1fX-74
anyone used or heard of Audiosphere Research? Massive ...
https://www.avsforum.com/threads/anyone-used-or-heard-of-audiosphere-research-massive-speakers-with-18-woofers.816911/page-2
The output of the 18L's is 98db 1watt at 1 meter and the sound dymanics are 102 db. The sound dynamics have had thier 15" woofers blown out several times each and were replaced under warranty for 5years, never had any issues with the audiosphere's to this day.
Audiosphere Research Speakers | Kijiji - Buy, Sell & Save ...
https://www.kijiji.ca/b-canada/audiosphere-research-speakers/k0l0
Audiosphere research 18 l. They are very big and heavy. 18 in woofers. 2 midrange and 4vtweeters per cabinet. No longer used $95.00 AudioSphere Research Monitor 8BL Speakers, Pair, Made In Canada Ottawa 16/01/2022
Audiosphere research 15inch speakers | Audioholics Home ...
https://forums.audioholics.com/forums/threads/audiosphere-research-15inch-speakers.52664/
The AR-18L being about the best available from a Canadian manufacturer before the National research Council in Canada made its Test Facilities open to the likes of Energy, Paradigm, PSB and Sound Dynamics, Mirage, etc. The AR-18L sported an 18" woofer twin 5 inch midrange and 2 piezo tweeters.
Audiosphere Research | Kijiji - Buy, Sell & Save with ...
https://www.kijiji.ca/b-canada/audiosphere-research/k0l0
West Island 09/01/2022. 2 Woofer 18 po/in. Audiosphere Research provenant de Caisse de son Monitor 18L 18" accordian edge paper cone woofers with a 60 oz magnet and two inch voice coil Very efficient, especially for an air suspension speaker, they put out about 95 dB/W/M and are rated for about 250 Watts. The Monitor 18L listed at about $1200 Made in CANADA !
anyone used or heard of Audiosphere Research? Massive ...
https://www.avsforum.com/threads/anyone-used-or-heard-of-audiosphere-research-massive-speakers-with-18-woofers.816911/
Audiosphere Research speaker It might provide you some information. Most of it of marginal use perhaps. From the little I read as a result of this search, I determined they were mid priced speakers 20+ years ago. You could order one of the mail order speakers that pays shipping each way and
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