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FDP Forum / Fender Amps: Vintage (before 1985) / Jensen C12p and C12n

Live Short

Shingletown,.U.S.A.

Aug 10th, 2017 11:09 AM   Edit   Profile   Print Topic   Search Topic

Hello, I was planning on using these paired in a Bandmaster 2x12 cab. I guess the voice coils are the same but the P has the smaller Q magnet. Do any of you use both? I assume they're close to the same power handling wise but just wanted some opinions.

jazzguy

Philly, B-3 Capital

don't dream it be it
Aug 10th, 2017 11:30 AM   Edit   Profile   Print Topic   Search Topic

I think the P is a 25 watter and the N is a 50 watter, though not certain.
The N will give you more headroom.

slider313

NC

Aug 10th, 2017 01:06 PM   Edit   Profile   Print Topic   Search Topic

The "P" has a smaller magnet than the "N" but it's larger than the "Q". The wattage rating for the early-mid 60's version, which all used paper voice coil formers, was about 20 watts for the "P" and 25 watts for the "N". I believe the later Jensen brown & gold label speakers; which say,"Made especially for electronic musical instrument reproduction"; have different cones, doped surrounds and fiberglass voice coil formers, bumping the wattage closer to 40 watts for the "P" and 50 watts for the "N".

jazzguy

Philly, B-3 Capital

don't dream it be it
Aug 10th, 2017 01:32 PM   Edit   Profile   Print Topic   Search Topic

"I believe the later Jensen brown & gold label speakers; which say,"Made especially for electronic musical instrument reproduction"; have different cones, doped surrounds and fiberglass voice coil formers, bumping the wattage closer to 40 watts for the "P" and 50 watts for the "N"."

that's what I was referring to, the speakers that came in '66 and '67 Twin Reverbs and Bassman/Bnadmaster cabs


BbendFender
Contributing Member
**********

American Patriot

About as ordinary as you can get.
Aug 10th, 2017 01:44 PM   Edit   Profile   Print Topic   Search Topic

I would say either speaker would work for a Bandmaster.

Live Short

Shingletown,.U.S.A.

Aug 10th, 2017 03:09 PM   Edit   Profile   Print Topic   Search Topic

Thanks for the info, I went ahead and installed them. They really sound classic. The C12N is from 66 but had to be reconed, Neil's speaker did it about 4 years ago . The C12P is from 63 so it's former is paper I'm sure. It came out of a Wurlitzer sideman drum machine. That used 2 el84 tubes for power.
I also have a C12N made for Radio Shack,orange basket and aluminum dust cap like a JBL. Made 10th week of 69.Likely higher rated since it was sold for guitar cabs. I may just pair that one up with the other N and save the P for a deluxe build I plan soon. Just not sure about the aluminum cap. Thanks for your replies.

Live Short

Shingletown,.U.S.A.

Aug 11th, 2017 01:56 PM   Edit   Profile   Print Topic   Search Topic

The C12N with aluminum dust cap sounds just fine, not overly bight or shrill. I paired it with the other N and I'll save the P for my other project. I use the cab with a 67 bassman. Might be too much for the C12P if it's only able to take 20 watts or so.

FDP Forum / Fender Amps: Vintage (before 1985) / Jensen C12p and C12n




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