Pundit
Post by Dom on Feb 5, 2020 10:53:47 GMT 12
Eventually I will set myself up a dedicated mono system based on a Leak Varislope mono and a TL12+. I will need a single speaker and while age-related would be nice, orphans can be hard to find.
I do have some ex-portable cinema projector Goodman's Audioms lying around in pretty rudimentary open-backed cabinets that I've used for extension speakers for guitar amps. Rather incongruously, I also have an Image AVC 200 centre speaker needing a home.
I think due to space I'd need to use cone speakers, however great a single ESL might be - so are there any realistic suggestions for a 'destination' mono speaker out there? I know little about things like transmission-line or single driver/Lowther-based systems but I'm curious.
Cheers, D
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Post by cartridgeguyonline on Feb 5, 2020 11:24:51 GMT 12
Would be hard to go past a Quad ESL imo (But I would say that...). I did see a single one in an antique shop in fitzroy, wasnt cheap though.
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Pundit
Post by Dom on Feb 5, 2020 13:33:45 GMT 12
Fitzroy??? I've just been there. How much?
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Post by cartridgeguyonline on Feb 5, 2020 14:42:17 GMT 12
I think it was about $900 AUD
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Pundit
Post by Dom on Feb 6, 2020 12:06:46 GMT 12
Ah, not Fitzroy, New Plymouth then ... 
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Post by michaelw on Feb 6, 2020 13:58:21 GMT 12
how big are your goodmans ? a nice 12in tannoy would do the trick. 
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Pundit
Post by beeman on Feb 6, 2020 18:00:41 GMT 12
Tannoy monitor gold 12' or even beTter 15". Axent Audio in New Lynn Auckland have had a huge Wharfedale mono speaker for years that would be as good as they get ;-)
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Pundit
Post by Dom on Feb 7, 2020 8:33:54 GMT 12
how big are your goodmans ? a nice 12in tannoy would do the trick. Sure would, never seen a single, though!
The Goodmans are both 12" so perhaps one with a suitable tweeter could work.
Beeman, I know that Wharfedale in Axent very well but we live in a shoebox so it might have to double as something else.
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Post by Owen Y on Feb 7, 2020 10:03:20 GMT 12
Yes maybe a nice sensitive tweeter + cap.
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Pundit
Post by garym on Feb 7, 2020 18:27:49 GMT 12
Mark Audio driver from the current range, one of the larger sizes (5 or 6 inch). In one of the Pensil cabinets. Small footprint floor stander mass loaded TL. Easy peasy to build. Full range and down to 40Hz. In my experience against my ESL57s they are electrostatic like. The driver will cost you about $200 if you buy it from Madisound in the USA. Ship it via Youshop.
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Post by cartridgeguyonline on Feb 7, 2020 19:08:51 GMT 12
Didnt know you had ESL57s Gary. How are they with your pure audio gear ? Have you added protection ccts ?
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Pundit
Post by cartridge on Feb 7, 2020 20:21:54 GMT 12
I'm watching this thread... looking for a speaker to listen to Concert AM on in the future.
:-p
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Post by michaelw on Feb 7, 2020 21:08:33 GMT 12
buy a bose and make everything sound like AM now
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Pundit
Post by garym on Feb 7, 2020 21:30:34 GMT 12
Didnt know you had ESL57s Gary. How are they with your pure audio gear ? Have you added protection ccts ? Had them for many years. They work well, I fitted the Quad protection circuits back in the early 2000s. I'm thinking I should replace the eht supplies sometime, they age. Mostly at present I'm running an open baffle system that uses an Eminence 12" bass driver and a Mark Audio full range.
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Pundit
Post by garym on Feb 11, 2020 9:49:51 GMT 12
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Member
Post by budgie on Mar 2, 2020 10:42:39 GMT 12
As a new member, with no established credentials on this site, I hesitate to comment but those Goodmans projector speakers probably have the pro 65Hz resonance frequency which means very little low bass (but a lovely, clear upper bass and mids). A pity because a domestic Goodmans Audiom would make a fabulous mono speaker paired with a horn or waveguide. An 'Econowave' as developed on Audiokarma would have been easy to make.
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Post by Owen Y on Mar 2, 2020 11:01:19 GMT 12
Welcome budgie! We're always pleased to see new member participation on these forums.
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Pundit
Post by Dom on May 10, 2020 16:38:32 GMT 12
As a new member, with no established credentials on this site, I hesitate to comment but those Goodmans projector speakers probably have the pro 65Hz resonance frequency which means very little low bass (but a lovely, clear upper bass and mids). A pity because a domestic Goodmans Audiom would make a fabulous mono speaker paired with a horn or waveguide. An 'Econowave' as developed on Audiokarma would have been easy to make. Hi Budgie, how do I differentiate between a domestic Audiom and a projector one? I have a few.
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Member
Post by budgie on Jul 30, 2020 21:45:06 GMT 12
As a new member, with no established credentials on this site, I hesitate to comment but those Goodmans projector speakers probably have the pro 65Hz resonance frequency which means very little low bass (but a lovely, clear upper bass and mids). A pity because a domestic Goodmans Audiom would make a fabulous mono speaker paired with a horn or waveguide. An 'Econowave' as developed on Audiokarma would have been easy to make. Hi Budgie, how do I differentiate between a domestic Audiom and a projector one? I have a few. Hi Dom. I'm not sure that there is a simple answer. If the speaker has Bell & Howell GB branding then it's likely to have the Public Address spec resonance frequency (which is 75Hz, not the 65Hz I erroneously stated earlier, or possibly 55Hz which was available from Goodmans on special request) but if it has the usual Goodmans Audiom magnet graphics then it probably has the normal 35Hz resonance frequency. Otherwise you need a good friend with the gear to test your drivers.
If the driver has a 'P' after the model name then it's part of the Power range and has the higher resonance frequency of a guitar speaker. I'm no expert on this subject but just happen to like Goodmans speakers and have kept a file of old ads and brochures.
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