jimbones
Joined: Nov 21, 2012
Posts: 151
Montreal
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Posted on Jun 16 2022 01:49 PM
I got my hands on a '72 Fender Twin (silver face) that had the original Fender speakers replaced with 2 Jensen "Vintage Design" speakers. It's my first experience with Jensens and I do not like them... too bassy, no mids and no highs. When I run Jag through my Fender tank or my Surfybear compact before it, you would hardly know it... very unresponsive. I'm looking for speaker recommendations to "wake" this amp up? Some speaker suggestions that focus more on the mids and highs would be super helpful! It's not my main amp, but I would like it to be more to my liking.
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cosmonaut
Joined: Apr 02, 2019
Posts: 339
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Posted on Jun 16 2022 09:27 PM
have you had the amp serviced recently or tried the amp through another cabinet? I’m surprised a twin won’t get bright even through speakers like those.
twins to me are often stupendously bright amps through most any speaker.
does the bright switch make any appreciable difference on either channel?
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DeathTide
Joined: Apr 13, 2018
Posts: 1341
New Orleans
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Posted on Jun 17 2022 09:44 AM
It sounds like something’s either wrong with the speaker or the circuit. The Jensen C12N or C12Q generally sound warm but not dull. I have a ‘72 Twin and I went and got a Steelaire (15” 4 ohm 275w monster) and and cutting a new baffle board today! I have a friend who has routers. I just won an auction for a pair of Jensen P12Ns, I may try those in the brown Twin.
If you have any other amp speakers, try those out and see if they are also dull. You may be hearing mods someone did to that circuit, or just component values that drifted far beyond their spec. It could be one cap.
— Daniel Deathtide
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Mfgeng
Joined: Oct 09, 2018
Posts: 16
Texas
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Posted on Oct 09 2022 06:39 PM
First off, make sure your circuit is squared away as suggested above.
After that, this is my suggestion, take it for what its worth... I would look for a 15" baffle out of a vibrasonic (Or make one) and stuff a 15" JBL in that amp. The downside is that you will either need to find a custom 4 ohm speaker or have an off the shelf speaker rewound to 4 ohm. Not a huge thing, but still a pain. The payoff will be worth it. A lot of people have twin reverbs, but the 15" "Twin" will be a surf machine!
Just an option, but had to put it out there, as that is the direction I would go if I was in your position.
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Redfeather
Joined: Jul 30, 2016
Posts: 854
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Posted on Oct 09 2022 07:53 PM
Or a couple D or K120s would drop in and achieve a result similar to the 15" JBL.
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