making 2x12" 'Jensen-like' cab: have a P12r 8ohm already...

[jasyr]

tired of trawling thru old threads. I'm in Germany, and shopping for a partner for my 15-year-old Jensen P12r to create a 2x12 cabinet. (To use with a Pro Junior purchased myself new in 1995.) It's been in a 1x12 home-made cabinet i been happy with /but want to push a little bit more air now along with some 3-D action for stage use. I like the idea of a ceramic being the other half. But am totally open to any other recomendations. Unfortunately, found my choices to be pretty limited over here. So far it seems like a Jenson C12Q 8ohm is the only fit around, that has a different/similar voice and is available to me...

Dig (or am just used to after all these years) the sort of ratty sound of the P 12; it's played in well/mellow... but I be concerned a C12Q will bring in harshness some complain about. So does anybody know a Jensen c12Q-type speaker of higher quality with a sensitivity in the neighborhood of 93dB? That's available here in Europe? (no Weber's around.) Only criteria is needs to balance with the volume of the 12" i already got as is my anchor-voice.

cheers, jasyr

 

[uriah1]

C12n is a great ceramic Jensen. You ruled that out eh ?

 

[radiocaster]

Have you checked Tube Town and Tube Amp Doctor? They are both in Germany.

 

[2L man]

C12Q RI is very good ceramic for up to 15W amps and for clean about 20W amp power. Good balance of warm sweetness and nastier bites!

WGS G12Q is also good low power ceramic and its sensitivity/volume is about what P12R has. TubeTown sell it under 100 euros.

C12N is good but very loud and mask P12R possibly too much. It also benefit longer loud playing breaking in than most other speakers.

There are few good youtube samples and comparisons for all three.

 

[jasyr]

thank you for the replies...

the C12n is 97.7db so would drownd out the the 93.7db P12r.

And the WGS G12Q i saw but, it also at 95.9dB is not far from 2x louder?

also it's 5 watts less than the P12r. i read the following on the wgsusa.com site in the comments section for the G12S: "I question the 20 watt power rating. I have an 18 watt tweed Deluxe and never crank the amp... the 2 G12Q's both developed creases around the edge of the cones after a short time. I think a lower power rating would be more realistic."

CQ @ 35 watts has more bass & clarity which would en-large the Jensen picture w/o changing it, and of course bring its ceramic dynamics. To repeat what i said above: am leery about all the comments on-line how Jensens are harsh speakers.

Maybe i should buy that and the G12Q and just hear for myself whats going on. especially since i read the Jensen measure their sensetivity a different way and so, the numbers are slightly louder compared to the same of other companies.

any other suggestions?

 

[2L man]

thank you for the replies...

the C12n is 97.7db so would drownd out the the 93.7db P12r.

And the WGS G12Q i saw but, it also at 95.9dB is not far from 2x louder?

also it's 5 watts less than the P12r. i read the following on the wgsusa.com site in the comments section for the G12S: "I question the 20 watt power rating. I have an 18 watt tweed Deluxe and never crank the amp... the 2 G12Q's both developed creases around the edge of the cones after a short time. I think a lower power rating would be more realistic."

CQ @ 35 watts has more bass & clarity which would en-large the Jensen picture w/o changing it, and of course bring its ceramic dynamics. To repeat what i said above: am leery about all the comments on-line how Jensens are harsh speakers.

Maybe i should buy that and the G12Q and just hear for myself whats going on. especially since i read the Jensen measure their sensetivity a different way and so, the numbers are slightly louder compared to the same of other companies.

any other suggestions?

I don't know how WGS measure sensitivity but Jensen use open IEC baffle which make numeric sensity 2...3db lower than speaker which is meadured using closed baffle what Celestion and Eminence do.

Open baffle also attenuate mids and there come V to frequency response graph which is lowest at 400Hz where rear produced sound come to microphone 180 decrees delayed. Also some gain to 100...150Hz when rear coming sound is less than 90 decrees delayed.

WGS G12Q volume is perhaps bit louder than P12R and C12R. Alnicos do compress louder volumes and to my ears P12R and Blackbird 40 have strongest compression effect so together with Ceramic the P12R can drown slightly when playing loud?

C12N is about as loud as medium magnet size Celestions.

Possibly there has been first Jensen manufacturing batch of some new models which has sound harch but it would be very stupid not to do changes to following product runs. In datasheet reads they reserved a right to do changes. I have very many Jensens and none sound harsch up to about half the power rating output power but thats how also other manufacturers speakers generally behave.

Many Jensen classic-series Alnicos and Ceramics have emphasised highs but so had originals so it should not surprice anyone.

 

[jasyr]

I'm going to build the cabinet on the upcoming weekend... As soon as its well under way I'll order a G12Q and P12Q. It seems like these are my only 2 options if I'm going to stick with my 93.7 sensitivity Jensen Alnico.

i just found this post... & as the pro jr. isn't fully a tweed + not clean at all, makes me want to try the Warehouse.

"Personally I don't know that I would recommend the G12Q for Tweed amps. But as said earlier, I guess it depends on what you are wanting to here. When we were developing that speaker the first 4 or 5 prototypes ended up in Princetons that had been converted to 1x12's."
The G12 series however are incredible in cleaner combos."

 

[Uncle Daddy]

tired of trawling thru old threads. I'm in Germany, and shopping for a partner for my 15-year-old Jensen P12r to create a 2x12 cabinet. (To use with a Pro Junior purchased myself new in 1995.) It's been in a 1x12 home-made cabinet i been happy with /but want to push a little bit more air now along with some 3-D action for stage use. I like the idea of a ceramic being the other half. But am totally open to any other recomendations. Unfortunately, found my choices to be pretty limited over here. So far it seems like a Jenson C12Q 8ohm is the only fit around, that has a different/similar voice and is available to me...

Dig (or am just used to after all these years) the sort of ratty sound of the P 12; it's played in well/mellow... but I be concerned a C12Q will bring in harshness some complain about. So does anybody know a Jensen c12Q-type speaker of higher quality with a sensitivity in the neighborhood of 93dB? That's available here in Europe? (no Weber's around.) Only criteria is needs to balance with the volume of the 12" i already got as is my anchor-voice.

cheers, jasyr

The c12q is a great speaker, but if you wanted to try something with a bit more low end but similar sensitivity, the Jensen MOD 12-35 might get you there. Cheap too.

Mod 12-35 | Jensen Loudspeakers

Straightforward tone with low end focus. When presented with overdrive distortion, it has a straightforward fuzz voice.

www.jensentone.com

Jensen Chicago 12-35 (MOD) Speaker (8Ohms)

Jensen Chicago 12-35 (MOD) Speaker (8Ohms) Straightforward tone with low end focus. When presented with overdrive distortion, it has a straightforward fuzz voice. Nominal Overall Diameter 306 mm 12 in Nominal Voice Coil Diameter 25 mm 1 in Magne

www.hotroxuk.com

 

[Wendelgee2]

Yeah, I think you're jumping to conclusions in terms of the C12Q. I love mine, and I hate icepick highs. It's a great speaker.

 

[BigBadLeeroyBrown]

Speaker matching can be quite tricky on paper. With a few exceptions, I tend to like my speakers matching for that reason. One exception is my 10" weber classic alnico (30watts I belive) and my 10" eminence delta demon (discontinued) that i found on craigs lust for $20, which is ceramic and 100watts. It was Keb MO signature speaker apparently. The DD is a dark smooth tone, 80-3k response and 97 decibels, which is the lowest dB of any eminence I've seen. The weber is fantastic sounding, but when it begins to lack in low end, the eminence really comes thru, and being so high powered it will never distort and always stays smooth. So maybee consider a dark ceramic if you like bass, it can fill in where alnicos lack in the bass department instead of overpowering it. Then when the alnico starts to break up, the ceramic won't. I could be wrong, but it seems that higher powered speakers aren't as efficient at low wattage.
After looking thru my catalog, here's one to consider;
Jensen jet Falcon 70-5k w/ rich and fat lows, where as the p12r goes up to 7k. My other idea is a p10R-F which is advertised as having smooth top end and full bodied low end. It's a 10 but you get the best of both sizes, I like 10s alot myself and I've seen cabs with one 10 and one 12. Tho less bass than a 12. Rn I'm using a 12" alnico Utah with the weber 10 and they sound great together. Used in a stereo set up so idk about sensitivity issues.
My first tube amp came with a 60s p12q an it was an amazing speaker, i miss that ol gal. She just flubby when cranked like a mofo on the low E string. Sadly, she was taken too soon by a crazed axe weilding lady....ooof

 

[BigBadLeeroyBrown]

And one I forgot that someone suggested, the Jensen mod12-35 is a good option too. Lighter an goes lower at 60-5k
The sensitivities not listed in my catalouge tho.
All my Jensen experience is with vintage ones tbh besides a c12k which I liked alot