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#385301 - 11/08/12 04:48 PM JBL tweeter problem....
GS37 Offline
newbie

Registered: 11/08/12
Posts: 3
I just inherited a pair of 2-way JBL L-20T bookshelf speakers. One of the tweeters sounded blown (very little output), so I bought a new tweeter and installed it. It worked fine for a week, then it blew out as well. What could be the problem here? A bad capacitor or something? I'm using a high quality receiver and not overpowering these speakers.
Thanks in advance.

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#385340 - 11/09/12 01:43 AM Re: JBL tweeter problem.... [Re: GS37]
JohnK Offline
shareholder in the making

Registered: 05/11/02
Posts: 10363
GS, welcome. A good receiver with reasonable clean power capabilities, say anywhere in the 100 watt area, should drive those speakers at all safe(to your hearing)levels with no damage to the tweeter. Your suggestion of a possible bad capacitor(in the speaker crossover)would allow bass frequencies through to the tweeter and damage it. That's a good guess and I don't have a better one.
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#385359 - 11/09/12 10:21 AM Re: JBL tweeter problem.... [Re: GS37]
GS37 Offline
newbie

Registered: 11/08/12
Posts: 3
Thanks for your reply.
The first owner of these speakers drove em with a 55 watt/channel receiver and probably blew the crossover and the tweeter out with under-powering.
My receiver is 100 watts/channel, so if the new tweeter blew, then something in the crossover is bad.
Now I have a good reason to buy a used pair of Klipsch again!!

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#385362 - 11/09/12 10:24 AM Re: JBL tweeter problem.... [Re: GS37]
CatBrat Offline
axiomite

Registered: 08/05/09
Posts: 5801
Loc: Some random location
Or a new pair of Axioms. You'll be glad you did. I'd probably go with the M3's if I wanted small and wasn't going to buy a subwoofer.

You've got 30 days to send them back for a refund.


Edited by CatBrat (11/09/12 10:29 AM)

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#385417 - 11/09/12 07:14 PM Re: JBL tweeter problem.... [Re: GS37]
SirQuack Offline
shareholder in the making

Registered: 01/29/04
Posts: 13318
Loc: Iowa
used to be a Klipsch guy, not even in the same league as Axiom
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#385450 - 11/10/12 11:22 AM Re: JBL tweeter problem.... [Re: GS37]
GS37 Offline
newbie

Registered: 11/08/12
Posts: 3
Well, I kick myself for not buying a used pair of Klipsch Heresys here recently, with a local pickup, for just $150!
Okay, I'll check out the Axioms....

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