Rogers LS3/5a speakers just blown

jkeny · 10th March 2008, 12:59 AM

I have just blown these speakers through stupidity - basically I was testing a new mod to a working amp and made internal connections to the wrong place. My stupidity was not testing the speaker cable for DC before hooking up speakers AND not using old test speakers for 1st tests!

Doh!

It is certainly the woofer drive that's gone as I bypassed the crossover to test the drive - haven't tested the tweeter yet!

These are the 15ohm version - does anybody know if I can fix these? I'm sure there are companies in the UK which repair them but the costs including shipping are probably not worth!

rcavictim · 10th March 2008, 01:21 AM

This is just fate`s way of telling you that you were ready to experience a different set of speakers anyhow. Still, gotta hate it when that happens!

But hey, why are you wasting time fooling with modifying a sand amp anyhow? You know what they say, you can`t polish a turd. (I can take a fun jab at transistors here, this is the Loudspeaker Forum). If this had been a valve amp with output xfmer your speakers would still be alive and well! Also, tube amps respond well to tweaks.

jkeny · 10th March 2008, 01:31 AM

I know you're right but I just loved the sound of these speakers! Luckily I have some Jordan JX92S drives which need a cabinet - I guess I'll try them in the Rogers cabinet.

But is there any way to recone these speakers myself? Is this a very difficult job?

Salas · 10th March 2008, 01:38 AM

Google for Richard Allan LS3/5A recone lab.

jkeny · 10th March 2008, 02:49 AM

Thanks Salas,
I've sent a couple of emails to Richard Allen & Doug Stirling about recone.

Salas · 10th March 2008, 02:55 AM

You are welcome.

poynton · 10th March 2008, 08:55 AM

Try Ebay for replacement drives.

If all else fails , sell them on Ebay. I've seen stupid prices for blown LS3/5As

Andy

jkeny · 10th March 2008, 12:05 PM

Hi poynton,
I have a saved ebay search working for me as we speak but as said these speakers go for crazy prices!

How difficult would this be to fix if it's just the former that has bubbled from the heat? Is this the likely problem or is there more to it than that - the sound is distorting when it goes above low vol or when a bass note hits!

AMV8 · 10th March 2008, 12:47 PM

jkeny
Your best chance will be to try Wimslow-audio. They are probably the biggest supplier of replacement drivers and speakers in the uk.
They have been around for years and will be familiar with your speaker.
Don

ShinOBIWAN · 10th March 2008, 12:53 PM

Quote:

Originally posted by rcavictim
But hey, why are you wasting time fooling with modifying a sand amp anyhow? You know what they say, you can`t polish a turd. (I can take a fun jab at transistors here, this is the Loudspeaker Forum). If this had been a valve amp with output xfmer your speakers would still be alive and well! Also, tube amps respond well to tweaks.

Go on, go the whole hog... tell us cables are valid tweak next.

10th March 2008, 12:59 AM	#1
jkeny Banned Join Date: Feb 2007 Location: Dublin	Rogers LS3/5A speakers just blown I have just blown these speakers through stupidity - basically I was testing a new mod to a working amp and made internal connections to the wrong place. My stupidity was not testing the speaker cable for DC before hooking up speakers AND not using old test speakers for 1st tests! Doh! It is certainly the woofer drive that's gone as I bypassed the crossover to test the drive - haven't tested the tweeter yet! These are the 15ohm version - does anybody know if I can fix these? I'm sure there are companies in the UK which repair them but the costs including shipping are probably not worth!

10th March 2008, 01:21 AM	#2
rcavictim diyAudio Member Join Date: Jun 2004 Location: Cool end of a soldering iron NW of Toronto	This is just fate`s way of telling you that you were ready to experience a different set of speakers anyhow. Still, gotta hate it when that happens! But hey, why are you wasting time fooling with modifying a sand amp anyhow? You know what they say, you can`t polish a turd. (I can take a fun jab at transistors here, this is the Loudspeaker Forum). If this had been a valve amp with output xfmer your speakers would still be alive and well! Also, tube amps respond well to tweaks. __________________ I.Q.Test. Have you ever purchased a recreational snowmobile?

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10th March 2008, 01:31 AM	#3
jkeny Banned Join Date: Feb 2007 Location: Dublin	I know you're right but I just loved the sound of these speakers! Luckily I have some Jordan JX92S drives which need a cabinet - I guess I'll try them in the Rogers cabinet. But is there any way to recone these speakers myself? Is this a very difficult job?

10th March 2008, 01:38 AM	#4
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	Google for Richard Allan LS3/5A recone lab.

10th March 2008, 02:49 AM	#5
jkeny Banned Join Date: Feb 2007 Location: Dublin	Thanks Salas, I've sent a couple of emails to Richard Allen & Doug Stirling about recone.

10th March 2008, 02:55 AM	#6
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	You are welcome.

10th March 2008, 08:55 AM	#7
poynton Magneto the Gravity Man diyAudio Member Join Date: Mar 2005 Location: A life on the ocean waves when I'm not at home in N. Wales (but I'm not Welsh so no sheep jokes!)	Try Ebay for replacement drives. If all else fails , sell them on Ebay. I've seen stupid prices for blown LS3/5As Andy

10th March 2008, 12:05 PM	#8
jkeny Banned Join Date: Feb 2007 Location: Dublin	Hi poynton, I have a saved ebay search working for me as we speak but as said these speakers go for crazy prices! How difficult would this be to fix if it's just the former that has bubbled from the heat? Is this the likely problem or is there more to it than that - the sound is distorting when it goes above low vol or when a bass note hits!

10th March 2008, 12:47 PM	#9
AMV8 diyAudio Member Join Date: Jan 2005 Location: near london	jkeny Your best chance will be to try Wimslow-audio. They are probably the biggest supplier of replacement drivers and speakers in the uk. They have been around for years and will be familiar with your speaker. Don

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