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Post subject: Jensen P12N in my Blues Jr?
Posted: Fri Sep 23, 2016 9:37 am
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Anyone have any idea if the Jensen P12N would fit in a Blues Jr? I'm thinking it will hit the tubes.

(Nowhere near my Blues Jr right now or I'd measure it. Old mid 90's tweed version.)

Any other good speaker options for my Blues Jr? Have a vintage 30 in there now...

https://www.jensentone.com/vintage_alnico/p12n_no_bell


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Post subject: Re: Jensen P12N in my Blues Jr?
Posted: Fri Sep 23, 2016 6:34 pm
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I've tried a few speakers in my Blues Junior and my favorite is the Eminence Cannabis Rex. It feels like a perfect match for the amp, takes the ice-pick out of the high end but still leaves a pleasant Fender(ish) sparkle, fattens the overall tone and extends the lows, this somewhat compensates for the small cab size and makes the amp sound more open and bigger. My next favourite is the Texas Heat it has a similar effect on the amp but has a touch more high end to my ears. Both give the amp a good kick in the pants in terms of volume and clean headroom.


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Post subject: Re: Jensen P12N in my Blues Jr?
Posted: Sat Sep 24, 2016 1:42 am
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See some friends guitar player put Eminence speaker in their cab, they like it better than Jensen witch since are made in Italy ( did you know ?) they are not same as when made in USA.


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Post subject: Re: Jensen P12N in my Blues Jr?
Posted: Sat Sep 24, 2016 2:47 am
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No457 Snowy wrote:
I've tried a few speakers in my Blues Junior and my favorite is the Eminence Cannabis Rex....


+1

Same here. 8)

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Post subject: Re: Jensen P12N in my Blues Jr?
Posted: Sat Sep 24, 2016 3:18 am
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stratele52 wrote:
See some friends guitar player put Eminence speaker in their cab, they like it better than Jensen witch since are made in Italy ( did you know ?) they are not same as when made in USA.

Not the same so must be better. I can't believe Fender would go to the trouble importing something of a lesser quality.


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Post subject: Re: Jensen P12N in my Blues Jr?
Posted: Sat Sep 24, 2016 3:33 am
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fifty4 wrote:

Not the same so must be better. I can't believe Fender would go to the trouble importing something of a lesser quality.


Better ? Where do you read that ? Give link please.

Less quality in Fender ? Oh yes as many amp builder since no more Blackface/ Silverface Point to Point amps.

Since customer buy a price not quality


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Post subject: Re: Jensen P12N in my Blues Jr?
Posted: Sat Sep 24, 2016 7:22 am
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stratele52 wrote:
fifty4 wrote:

Not the same so must be better. I can't believe Fender would go to the trouble importing something of a lesser quality.


Better ? Where do you read that ? Give link please.

Less quality in Fender ? Oh yes as many amp builder since no more Blackface/ Silverface Point to Point amps.

Since customer buy a price not quality

Are you saying Fender put profit before quality? I am shocked at the mere suggestion.

I suppose you expect me to believe that the Chinese are not the worlds best luthiers that just happen to have very reasonable labour and production costs!

Incidentally, I have a Jensen P12Q in my limited edition '65 DRRI Fudge Brownie and I think it sounds great.


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Post subject: Re: Jensen P12N in my Blues Jr?
Posted: Sat Sep 24, 2016 7:39 am
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fifty4 wrote:
[
Are you saying Fender put profit before quality? I am shocked at the mere suggestion.


Incidentally, I have a Jensen P12Q in my limited edition '65 DRRI Fudge Brownie and I think it sounds great.



1- Welcome in 2016. Fender must sell product people will buy and most people look price first not quality.
2- Without A/B test, everything sound good :lol:


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Post subject: Re: Jensen P12N in my Blues Jr?
Posted: Sat Sep 24, 2016 6:28 pm
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stratele52 wrote:
fifty4 wrote:
Are you saying Fender put profit before quality? I am shocked at the mere suggestion.


Incidentally, I have a Jensen P12Q in my limited edition '65 DRRI Fudge Brownie and I think it sounds great.



1- Welcome in 2016. Fender must sell product people will buy and most people look price first not quality.
2- Without A/B test, everything sound good :lol:


+1

The corporate name aside, there is absolutely no linkage whatsoever between a consumer product currently imported from Italy and a precision component built in Chicago fifty years ago. None.

Arjay

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Post subject: Re: Jensen P12N in my Blues Jr?
Posted: Sat Sep 24, 2016 6:42 pm
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I'll give the Cannabis Rex a try. $80 is cheap enough to give it a go. I really liked the Eminence Maverick that I have in it. Unfortunately it only fits with the chassis out of the cab. The FDM adjustment sits where the tubes are.

Some weber options looked interesting and I kinda want to try a Neo Creamback but I like the $80 price tag of the Eminence better.

Thanks!


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Post subject: Re: Jensen P12N in my Blues Jr?
Posted: Tue Sep 27, 2016 1:26 am
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http://billmaudio.com/wp/?page_id=295&cpage=3

This info should help.
If you dont like the rex you could try smokin it! :D


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Post subject: Re: Jensen P12N in my Blues Jr?
Posted: Tue Sep 27, 2016 3:41 pm
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Eminence said they can build me a FDM free version of the Maverick speaker I tried to wedge in there before. Think I'll try that.


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Post subject: Re: Jensen P12N in my Blues Jr?
Posted: Wed Sep 28, 2016 9:07 am
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Retroverbial wrote:
The corporate name aside, there is absolutely no linkage whatsoever between a consumer product currently imported from Italy and a precision component built in Chicago fifty years ago. None.


Age isn't proof of excellence. There were many cruddy speakers of yore too, including some of the Jensens. Granted, Jensen (and Goodmans, for that matter) had some of the best speakers, but not all of them were "precision components".


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Post subject: Re: Jensen P12N in my Blues Jr?
Posted: Wed Sep 28, 2016 11:18 am
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arth1 wrote:
Granted, Jensen (and Goodmans, for that matter) had some of the best speakers, but not all of them were "precision components".


Those Jensen models selected by Leo as OEM for his amps were some of the best ever made. That's why they still command premium prices.

Arjay

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"Here's why reliability is job one: A great sounding amp that breaks down goes from being a favorite piece of gear to a useless piece of crap in less time than it takes to read this sentence." -- BRUCE ZINKY


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Post subject: Re: Jensen P12N in my Blues Jr?
Posted: Fri Oct 21, 2016 6:46 am
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I bought my Blues Jr. III after acquiring three of the '65 blackface reissue models -- the Twin Reverb, Deluxe Reverb and Princeton Reverb. I LOVE those '65 reissues, but wanted to add a BJ3 to my stable in order to have Fender's Hot Rod tone flavors available. Previously I had a Hot Rod Deville, but ended up giving it in trade + cash for my DRRI; I never liked the gain channel on the larger Hot Rod models, so chose the BJ3 for its single-channel simplicity. I also wanted the BJ3 as a platform for experimenting with various tweaks and mods -- figuring that if I ruined the amp I would not be squandering a more expensive investment.

Out of the box, I was underwhelmed by the BJ3. I'm not sure what people mean when they describe the BJ sound as "boxy," but my musical partner described it as "thin" -- which made more sense to me and with which I agreed. I discovered, however, that I really enjoyed the BJ3 as a partner to the PRRI when daisy-chaining those two amps and playing them simultaneously. I would have been happy to keep the BJ3 for that use alone, but there are few occasions when it is practical for me to carry and set up both amps.

So, I began to research ways to modify the tonal output of the BJ3 to see whether I could turn my underwhelmed reaction into a more satisfying experience, and convert the BJ3 from an occasional partner to my PRRI into a grab 'n' go favorite all by itself.

I have NOT done all the Bill M mods or any other rebuilding of the circuit panel. The only thing I have done to the circuit panel was to add the little supplemental jumper ground of the mids pot to ensure that I can dial the mids fully off. That in itself was helpful to me, because I don't really like the mids boost on any amp, and I wanted to be able to remove the mids boost entirely from the tonal signal of my BJ3. As far as swapping capacitors or transformers, however, I'll leave that for another day if I think I need or will like the results.

The next change I made to the amp was simply to swap the 12AX7 tube in the first valve for a 12AY7. I had read that this would expand the clean headroom of the amp, and the result of that simple swap was immediately apparent and, to me, very pleasing. The sound was much cleaner but still "thin." I should add here that I don't really like the BJ "fat switch." It boosts the mids, which, to my ears, makes the tone "thicker" but not really "bigger." I find that the clarity of individual notes while playing chords and certain kinds of riffs is obscured when the "fat switch" is engaged, and that the amp gets noisier. Instead of the "fat switch," therefore, I started using a clean boost pedal in front of the amp. That, plus a lot of experimenting with the gain volume and master volume controls in relation to one another finally got me to a sound that I found truly pleasing and satisfying rather than just tolerable or acceptable. I began to use the BJ3 all by itself at rehearsal and gigs, liking what I was hearing.

Now, at last, to the OP's main question! After a lot of research into replacement speakers for the BJ3 I decided to try an Eminence Swamp Thang. The new speaker arrived yesterday and I was able to make the swap before heading to rehearsal last evening. I am tremendously pleased with the results! At last the "bigger" sound I've been searching for is coming out of my BJ3, without any use of a boost pedal. It might seem ridiculous to put a speaker rated at 150 watts into an amp with 15-watt output, but the result is wonderful. This little amp now produces a big sound that is rich and dynamically responsive (both to my playing and to very small tweaks of the amp control knobs) and yet still faithful to the distinctive qualities of the BJ tone stack. I use the word "crisp" to describe what I like about the BJ tone stack, in contrast to the "lush" qualities of Fender's blackface tone. Additionally, my BJ3 is now extremely quiet; I'm not talking about output volume, which is increased, but about ordinary amp noise -- buzz, hum, etc.

Before deciding on the Swamp Thang I was closely considering the Eminence Cannibis Rex, which so many people love in their Blues Jrs. To my ears, however, the Swamp Thang sounds fabulous in the BJ3; maybe I'll try a Cannibis Rex in my DRRI.


Last edited by TumblinTele12 on Fri Oct 21, 2016 7:04 am, edited 1 time in total.

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