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Re. LS3/5a speakers.
I used the phrase "much misunderstood speakers", because that is what I feel they are. The majority misunderstand the purpose for which these speakers were designed. They were designed by the BBC for near-field monitoring (largely of speech) in the confined space of their outside broadcast vans. They were never designed to be a full-range monitors used in a far-field listening environment; as is required for speakers used in domestic listening rooms.
The fact they sound surprisingly good when used away from the environment for which they designed, is no justification for either excessive praise or damming criticism. Given however the absurd prices increasingly being paid, the notion of the 'Emporer's new clothes' is understandable.
Apparently this works perfectly! :rolleyes:
http://www.ebay.co.uk/itm/usher-twee...0AAOSwXeJXeMt0
Of course it does.
That bit isnt needed :doh:
Probably inhaled the Beryllium before writing the ad
Shockingly pricey pair of Lowther Acousta speakers. Fitted with older generation PM6A drivers.
http://www.ebay.co.uk/itm/Stunning-L...oAAOSwRQlXdqqt
S.
Bet my wee teles are better ;)
My friend built Lowthers like that very carefully in the 70's, he was a cabinet maker, but many speakers we built after that were to our ears better.
A couple of the drivers 10"
http://uploads.tapatalk-cdn.com/2016...03ed73e7c0.jpghttp://uploads.tapatalk-cdn.com/2016...a9e8070d03.jpg
The brackets look like some were fitted with transformers.
What diameter are these?
and the ones Ive just finished
http://uploads.tapatalk-cdn.com/2016...b96995c51c.jpg
There are some really nice sounds to be had from vintage continental drivers. Not tried Telefunkens, but had Philips, Peerless, Audax, Saba and Isophon vintage alnicos and others.
8" units above? Looks a good job, how are the units wired? I ran Golden 10" full range Wharefdales many decades ago, but decided that they were better with some tweeters.
No they are same drivers.. 10 inch. they are wired in series. they are telefunken L242's dont see many, as I have most of the ones I ve seen for sale ;) Ive 7 in total
Ive a set of rola celestion 12 inch in boxes too. they are nice as well, and a set of old Fane 8 inchers in smaller boxes..
I suppose you did that to get 8 Ohms. Parallel connection can cancel out some peaks in the response, I guess that you probably know this already, Briggs book.
I have tried some Philips units, all seemed good apart from a dome midrange, too cardboardy sounding, Audax too.
Well actually they are less than 3 ohm nominal each although probably average out at about 5.. the 2 in series give just under 6 ohms nom. they are extremely efficient at about 100db but only 8 watts. Dont really need more than a few to sing loud and true. Get the reflex box right and they are fabulous speakers and have ousted by far all others Ive heard. (for me anyways)
got some alnico Philips drivers here.. they aint in same league.. not sure what model though
I had a set of these a while back:
http://i66.tinypic.com/6ia549.jpg
From the US. University (subsidiary of Altec) Diffaxial 312 drivers. 12" twin cone plus concentric phenolic dome tweeters & alnico mags all round.
They sounded amazing, but needed boxes that were just too huge for my environment. Shame.
They needed boxes somewhere between Tannoy Lancaster and York size. In other words bloody big!
Still got these to try out. Modern Chinese L Cao alnico 8" units, based on the classic Mitsubishi Diatones from the sixties.
http://i64.tinypic.com/e126ih.jpg
The design and finish on these is outstanding. Note the vented rear spider. No compression effects.
http://www.radiomuseum.org/images/ra...312_917578.jpg
35 watt 3 way .. about 16 ohm.. look very decent
a set in a cab
http://thumbs.worthpoint.com/zoom/im...a1a50aeeca.jpg
Right, anyone got bigger and older? I think it's a 12" mains energised, was my Grandfather's. It's still here:
Attachment 17463Attachment 17464Attachment 17465Attachment 17466
My last job somewhat later was in a similar field, more to do with Defence Microwave Technology though. Most there thought I was an electronic wiz, but in truth, I struggled a lot. My qualification was actually in Mechanical and Production Engineering, and I didn't know that much about that either.
Interesting pair of speakers I've just found. Search "Large executive speakers" and you're away.
They look to have decent drivers for their period.
They sound great apparently :eyebrows: passive rads and god knows what the thing masquerading as a tweeter is
http://www.ebay.co.uk/itm/Pair-of-Vi...EAAOSwkl5Xfl6N
Lol 'Royal' Wooton Basset. What a tip.
Is that what they are? I recall the name. They'll still sound grim though.
Nice chance to buy a Radford Executive's for £15:)
A Pair of TANNOY Silver Twelves: http://www.ebay.co.uk/itm/112052975981
Well that ad didn't last long.
This looks coooool! http://www.ebay.co.uk/itm/ORACLE-250...cAAOSwzLlXh2pT
S.
That is properly hideous.
http://i.ebayimg.com/00/s/OTE1WDEzOT...Xh2pT/$_57.JPG