Fun with a Pro Jr.

[chaz]

Just finished this fun little project for a buddy. We migrated his little Pro Jr. into a senior cab. Project began as a 2x10, but he changed his mind halfway through to a 1x12. Cab is approximately the size of a 60's Vibrolux Reverb, so if he changes his mind again I'll just make a new baffle. It was a challenge squeezing a Jensen P12N in there with the EL-84's right in the way! Worked out with a generous 3/8" clearance, and it sounds pretty cool. Weighs 30 lbs. in the pine cab with 1/2" baltic birch baffle.
Anyway, half the fun of doing this is I get to play it first, and I get to show it off! I hope you enjoy the pics.

[ronin32]

That looks so cool! :AOK

How hard is it to change a cab? Is it as simple as unscrewing the chassis out of the old cab and inserting it into the new cab?

[chaz]

Thanks. Well yes and no. Yes, once all that stuff is figured out before hand it just pops in there with 4 machine screws. No, it takes a fair amount of time to figure out how to do it first, but that's what makes it fun. I like doing 'unique' ones. I once made another buddy's champ into a head with a matching 4x8 slant stack bottom. LOL! That one's cool.

[ronin32]

So is it a kit or custom made cab?

[mockoman]

Cool,love the color.
A friend of mine is a cabinet maker,and he's doing a maple cab for my PJ.
Should be done soon,and I'll post some pics.

[chaz]

Originally Posted by ronin32

So is it a kit or custom made cab?

Not a kit, custom made.

[gkoelling]

Originally Posted by chaz

Not a kit, custom made.

I have the impression you built the cab, no? Regardless, it's beautiful.

Thanks for sharing.

[chaz]

Yes I build for some of the local players, and thanks for the compliment!

[VinceM]

Hey chaz - really cool stuff. I love my Pro Junior. I recently got some nice NOS EL-84s from Mike at KCA and it brought it to another level tonally. I have been wondering about the benefits of another cabinet/speaker configuration as well. I have heard that these little combo amps are hell on the tubes. It is easy to get tube rattle. It seems like the head and cab idea would be very appropriate for this amp, for the tubes' sake. Have you thought about doing this? A teeny-weenie cute little stack! Then it would also be easy to pair it up with a bigger speaker configuration depending on the gig.

Vince

[ronin32]

Originally Posted by chaz

Not a kit, custom made.

Oh, wow! I was under the impression that this was a kit of some sort.

Really nice work.

[Rambo66]

Do you have any pictures of the build? What kind of joints did you use?

Thanks!

Dennis

[chaz]

No, sorry I didn't take pics of the build. Joints are dovetail. It's a pretty straight forward build. The only thing unusual is how the chassis mounts. It uses 2 screws on top and 2 screws on either side, so I had to make wood brackets on each side to secure it to. That made it easy to mount the back panel though. The most difficult thing was aligning the holes for the chassis screws, measure three times - drill once! I did hear a little tube rattle, but like my buddy said " Aah, turn it up loud with a drummer and you'll never hear it."

[chaz]

Originally Posted by VinceM

Hey chaz - really cool stuff. I love my Pro Junior. I recently got some nice NOS EL-84s from Mike at KCA and it brought it to another level tonally. I have been wondering about the benefits of another cabinet/speaker configuration as well. I have heard that these little combo amps are hell on the tubes. It is easy to get tube rattle. It seems like the head and cab idea would be very appropriate for this amp, for the tubes' sake. Have you thought about doing this? A teeny-weenie cute little stack! Then it would also be easy to pair it up with a bigger speaker configuration depending on the gig.

Vince

Yeah, that could be done and I agree it would be better for the tubes. Whish I still had pictures of the champ stack, but they were lost in a hard drive crash. The guy who owns it moved so I'll probably never see it again. The PJ sounded like a bigger amp with the new speaker and cab. You could do small clubs with one and a pedal or two. We first tried a Jensen neo 10" but that didn't have enough bass response, so then we went with the 12".

[ronin32]

Do you have a inside pic?

[Vintage]

Fantastic work chaz!