rogers muffled speakers...

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hello,

as you may have read ive been given a pair of rogers ls55's, ive connected them to my amp and they are very muffled. my amp is a sherwood (dont laugh) and powers my eltax (again dont laugh) speakers and sound fine! as soon as i connect the rogers though they sound muffled, has anyone got any ideas as to what could be wrong?

thanks in advance.
 

John Duncan

Well-known member
And now replying to the corretc post:

First thing's first - since the LS55's are biwirable (as far as I can google), are you either a) using biwire cable, so that both sets of terminals on the back of the speakers are wired up or b) using a single run of cable and the two sets of speaker terminals on the back are connected together, either with metal strips which would have originally been connected between them, or with lengths of your speaker wire to short the terminals (red to red, black to black)? The connectors could've got lost and not included in the handover.......

Does that make sense? Apologies if it's grandmother/eggs.
 
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Anonymous

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hello,

im using a single run of cable to each speaker, the terminals are connected to each other with some metal strips.
 

John Duncan

Well-known member
Damn.

If you remove the metal strips, do they sound the same? If so, your tweeters aren't connected, somehow, and you may have to dig inside to see if they've come undone.

If they're even more muffled, then either a) the Rogers just aren't very good or (more likely) b) the Sherwood is muffled and the Eltax are incredibly bright, and the two together give a balanced sound..........

Otherwise, dunno what to suggest.......
 
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Anonymous

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hello,

ive tried my speaker cables in the posts with the metal strips removed, they sound the same and if i connect the cables to the other posts theres no noise at all! is that right?
 

John Duncan

Well-known member
No, that sounds like your tweeters are not connected at all to the binding posts at the rear, so when they're plugged in all you're getting is woofer.

You're going to need to take them apart, IMO....
 
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Anonymous

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ok then! thanks for your time, now wheres my screwdrivers?

regards
 
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Anonymous

Guest
hi,

they are connected, i tried touching the tweeter terminal with my speaker wire-no sound, i suppose its a new set of tweeters for me then?
 
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Anonymous

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without taking them back out again, there were 2 stickers on them 1 large saying rogers and another smaller one saing vifa.
 
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Anonymous

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Hello. I used to work at Rogers right around the time those speakers were being made. They may even have my signature on the back ;) They were assembled at the plant in Mitcham in Surrey.

Sadly they are a part of Roger's 'death throes' range and are cheaply manufactured. They are hand built, but the cabinets are chip board and the woofers are all pre assembled. IIRC they have the clear drivers. They only retailed for about 200 pounds and the plastic frames on the front were whacked in with a rubber mallet. hehe, memories !

OK, now for the bad news. The crossover networks in those speakers are chinese made, the cables on the crossovers (green and red I would bet cash on it) were soldered in by us. It was a way to get around the Made in England sticker on the back of the cabinet.

All of the drivers in those speakers were made by Vifa, who are a spanish company. IIRC those drivers were about 3 pounds each for us to buy. You will not find them as in 1999 the company closed it's doors in the UK forever, the company was bought by the japanese and was taken lock stock and barrel to the far east. www.rogershifi.com - see?

Please do not try and use cheap piezo type tweeters in there, you will damage your amplifier. Also please note there is a cut out in the tweeter hole when you remove it, 3 screws if memory serves and you will NEVER find another tweeter that fits the holes and has aligning screws. You may get one in there, but the screwholes will be a country mile off (this was intentionally done by our R&D team to stop people putting in non rogers replacements. A large lump of our profit came from replacement drivers.

I would buy some dome tweeters with a specification *as close* as you can get. These won't be cheap (probably 15-20 pounds each retail) and fit them carefully. However, before doing so test the tweeters as you may find the problem is with the cross over networks (if it is wave them goodbye and DO NOT try and fit new crossovers in there, you will damage your amplifier). To test the tweeters simply get a 1.5v AAA battery and connect wires onto the tweeter terminals and then connect those to the positive and negative ends of the battery (doesnt matter which way around) listen for a scratchy rustling sound. If you get that sound your tweeters are working and it is the crossovers.

HTH, good luck.
 
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Anonymous

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Vifa are still going, though now part of a Danish conglomerate and made in China. Here's the website: http://www.tymphany.com/ .
 

chebby

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Pandy, I had contemplated buying the Stirling Broadcast LS3/5A V2 speakers on a couple of occasions...

http://www.stirlingbroadcast.net/

They seem to be priced more realistically (£764 + VAT) compared to the Rogers LS3/5A 50th Anniversary edition at £1499 per pair.

Stirling Broadcast also use the the 'thin wall' ply construction which seems to more in keeping with the original BBC spec. They used SEAS and Scan-Speak drivers and even use the thick felt tweeter surround. (I think they now use their own design of drivers but not sure where they are sourced.)

They hold a BBC LS3/5A (V2) license so I assume all the other details of the design are adhered to.

lektorsavidfan, here is the tweeter section for SEAS....

http://www.seas.no/index.php?option=com_content&task=view&id=43&Itemid=48

Maybe you could call/email SEAS and find which model is the best match for you.

Casual googling suggests the H-831 would be a suitable replacement for the KEF T27.....

http://www.seas.no/index.php?option=com_content&task=view&id=80&Itemid=104

But best to check

Alternatively, here is the Wilmslow Audio link for their suggested LS3/5A speaker driver replacements....

https://secure.wilmslow-audio.co.uk/catalog/index.php?cPath=138_145&osCsid=368c23780495ef71b2d469202c3ea816
 
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Anonymous

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Thanks for the welcomes chaps :)

I used to absolutely love the LS35a. I owned about five sets years ago, stupidly I sold them all to a Japanese man I knew and he used to take them back on holiday and sell them there, for women to have in the Kitchen !! *eek*.

I sold them between 200 and 350 a set. Which in hindsight was terribly daft. The thing is, I never ever knew the actual retail prices of our stuff, and seeing it every day made it worth less I suppose.

What makes me the most sick is that in April of 1998 Rogers (used to be called Swisstone Electronics) started to experiment with the 35a and to that ends we had carbon woofered R&D versions, Japanese paper versions (don't even go into what they cost... Paper cones alone for R&D were over 80 pounds each. it was some kind of special paper) and all kinds of other weird and wonderful prototypes (even alu cones). I had a set of each and foolishly sold them at the same prices.. What a silly billy.

However, in my opinion the best speakers EVER to have come from Rogers was the Ls5/9. They are, and were, utterly incredible.

Toward the end of the company (around 1999) Rogers were already owned by a company from the far east. And it showed. The LS1? all SEAS and VIFA. The LS55, DB101 (db101 were devved by Andy Whittle, good friend of mine**) and all of those 'later' models were, pardon my french, just rubbish. They were no longer Rogers.

The real Rogers are the LS35a, the Ls5/9 and the Studio 2 (12 inch woofer, large beasts) and some other limited runs, but all of those later ones were just awful in honesty. They sounded OK, heck, some even managed to look OK but they really were horrible.

Another interesting fact about the later speakers (55 and all those others) is that to get around the EC laws we had to sit and peel off the sticker on the cross overs (the made in R.O.C ones) and solder the wires into them ourselves. Shrewd tbh. I quit the company about three months before it finally died because it was getting embarassing. I still have an E40 phono here tho, and about five sets of Crystal Link RCA cables ;)

**. The DB101 has a few things on it that never came to pass that were all put in during R&D. See those funny round things on the back with holes in? they were for the mounting poles that we never put into production. They were 8ft tall chrome poles that you could bolt up to 12 DB101 to and create massive 'stacks' of DB101 for night clubs. Hence the name, decibel 101. All quality went out of the window hehe.

The fuse in there lights up if you hammer them hard, and will eventually blow. Replacement is all but impossible.

Also, on those Ls55's the reason I say do not replace the cross overs is simple. Those are some weird kind of hybrid and you will not find one anything like it. The best thing to do if they are damaged is have them repaired with the correct caps and chokes.
 

bretty

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Hi Pandy,

I have the Studio 1a. I love 'em. They are the only Rogers I have heard. How do they rank amongst the other Rogers models?ÿ

Welcome to the forum, by the way.ÿ
 
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Anonymous

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Hi Bretty,

Can I ask where did you buy your Rogers Studio 1? And your price is incredibly low. What a hard bargain you had for it!

I've been searching one for long. Any suggestions where I can get one?

Thanks,

Simon
 

bretty

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Hi Simon,

I bought them from 'steves hifi'. I have seen other Rogers speakers in there, since I bought mine, so maybe keep checking his site every so often. My price was really low, I think Steve took his eye off the ball, because they were up for £185 originally, and I haggled to £125. Good luck. I hope you find some, they are damn fine speakers.ÿ
 

seasiders rock

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interesting thread, i have ls 55 and one tweeter went pear shaped.

the original Vifa tweeters are still available from Wilmslow Audio, google wilmslow Audio, cost is about £20.00.

10 min job, 3 screws and a soldering iron.

agree there built to a price, woofers are from the LS2/A, Rogers were on ther way out when they put these together, not a patch on the 80,s speakers such as studio 1 etc.

very laid back sound, no deep bass and suited to a smallish room, my lounge is about 25 ft long and they struggle.
 
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Anonymous

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Thanks Bretty for your useful info.

Just had a quick check there. They are all very good value. But seemed can't find any Rogers left now. Do you know any other stores that might have Rogers speaks? I damn love this brand.
 

bretty

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I don't know of any other stores selling Rogers, sorry. I've seen them go on E-bay, but they usually go for 5 or 6 times what I paid. I think they are getting pretty scarce, now.

Keep checking steves hi fi, because steve knew Jim Rogers and he lived a few miles away from my hometown, so there are probably more of his speakers around here than other areas. Hope it works out for you, mate.
 

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