Justin's amp reconfig

Justin's amp reconfig

Postby JustinJohn » Sat Jun 25, 2011 4:59 pm

Got my head cabinet today - made by Mojotone (Link Here)

I'm very impressed with the construction - it's bulletproof! Everything is well fitted, tolex is beautiful, hardware perfect, solid internal bracing, even has that new-car smell!

All in all a really, really tight package. Kudos to Mojotone! (my speaker cab should be here in a week or so - I'll update this then.)

Image

Image
User avatar
JustinJohn
Terrapin
Terrapin
 
Posts: 150
Joined: Tue Jun 21, 2011 5:35 pm
Location: Portland, Oregon

Re: Justin's amp reconfig

Postby JustinJohn » Thu Jul 07, 2011 5:42 am

Got my 2x12 speaker cab!

Made by SSP. I couldn't be happier. =)

PICS:
Image
Empty cabinet

Image
Rear view

Image
Loaded!(reconed E120 on bottom)

Image
Wired up

Image
Wooden Front Cover

Image
Front grill cover

Next I'm gonna be drilling the head cab for my Twin Reverb's Head, mounting it all up, mounting the reverb tank, etc.

More as it happens...
User avatar
JustinJohn
Terrapin
Terrapin
 
Posts: 150
Joined: Tue Jun 21, 2011 5:35 pm
Location: Portland, Oregon

Re: Justin's amp reconfig

Postby JustinJohn » Fri Jul 08, 2011 4:51 am

And the finished product!!

Image

First, I pulled out all the tubes (noting all positions) and safely removed the chassis from the old twin cab, along with the reverb tank. Then I turned the empty, old Twin cab upside-down and positioned it exactly squarely on top of the new smaller twin-head cab. I used a level to line it up perfectly on all sides as a jig to drill the new holes to mount the chassis in the new cab. Worked like a charm - surprisingly accurate (lucky?)...

Image
Image
Image

While inverted, I slid the chassis into the new head-cab. The weight is lopsided, wonky, little movements at a time did the trick. Previously I had mounted the reverb tank as far towards the front of the head-cab as I could - there's about a 1" gap between the reverb tank and the 6L6 tubes (will this be a problem?). Of concern was the condition of the reverb tank cables - they are old, almost calcified. I took care to wrap and mount them snugly (but not too snug) out of the way with minimum wiggle room. Sealed it all up finished.

Image

...And the first test run was a smashing success! ...Whew.... The first time having used my new pine 2x12 cabinet - Immediately of note was the change of my guitar tone. There is a distinct improvement in the "presence" of the sound - I have gained back a TON of high-mids and crispness that I didn't even know I was missing. The improvement is drastic.

Image

I finished this project after midnight so I didn't get a chance to really crank it up (neighbors...) - Ill be doing so tomorrow - I'll upload a video!

=)
User avatar
JustinJohn
Terrapin
Terrapin
 
Posts: 150
Joined: Tue Jun 21, 2011 5:35 pm
Location: Portland, Oregon

Re: Justin's amp reconfig

Postby Tennessee Jedi » Fri Jul 08, 2011 6:43 am

Hey Justin
Great project and pics - looks great
Question - does the spring reverb sound the same now that its on its side ? I was wondering about if I ever go your route.
Nice looking rig you have !
:-)
User avatar
Tennessee Jedi
Senior Member
 
Posts: 4217
Joined: Mon Oct 08, 2007 6:29 am
Location: Bucks Co.Pa

Re: Justin's amp reconfig

Postby JustinJohn » Fri Jul 08, 2011 7:20 am

Heya Jedi!

I don't notice any difference in the sound of the reverb while using it on it's side. With that said, I haven't turned the volume up to my stage volume yet... So if I notice a difference, or anything weird, I'll certainly make note of it here.

=)
User avatar
JustinJohn
Terrapin
Terrapin
 
Posts: 150
Joined: Tue Jun 21, 2011 5:35 pm
Location: Portland, Oregon

Re: Justin's amp reconfig

Postby Pete B. » Fri Jul 08, 2011 9:15 am

Nice Job!
:-)

Hey that Reverb Tank does look close to the Power tubes, but if you are pre-amping this to another Amp, you can remove the Power tubes.
Last edited by Pete B. on Fri Jul 08, 2011 9:35 am, edited 1 time in total.
User avatar
Pete B.
Senior Member
 
Posts: 1782
Joined: Mon Jul 23, 2007 9:59 am
Location: Portland, Oregon

Re: Justin's amp reconfig

Postby strumminsix » Fri Jul 08, 2011 9:25 am

Very nice lookin' rig!!
User avatar
strumminsix
Senior Member
 
Posts: 6645
Joined: Tue Apr 05, 2005 8:13 am
Location: Chicago

Re: Justin's amp reconfig

Postby tigerstrat » Fri Jul 08, 2011 9:41 am

very compact head! It's almost like a DSR in a regular Dual Showman head cab.... splitting the difference , perhaps.
"There, in huge black letters, was 'The Grateful Dead'. It just... cancelled my mind out."-Garcia
User avatar
tigerstrat
Senior Member
 
Posts: 4628
Joined: Wed Nov 30, 2005 1:20 pm
Location: Portland,OR

Re: Justin's amp reconfig

Postby JustinJohn » Fri Jul 08, 2011 9:16 pm

@ Tennessee Jedi

So I cranked it up pretty good today and yea, the reverb was acting funny. It was feeding back a distinct "G" pitch behind everything I was playing. So I placed the head flat horizontal, and it didn't do it. Just for the sake of trying I put the head vertical on the opposite side of the speaker; lo and behold - it doesn't feed back! So now I'm rockin full stage volume with the head on the left side of the speaker (power indicator light up - same side Jerry's was laying on) and it seems to be fine... So far.

Go figure!
User avatar
JustinJohn
Terrapin
Terrapin
 
Posts: 150
Joined: Tue Jun 21, 2011 5:35 pm
Location: Portland, Oregon

Re: Justin's amp reconfig

Postby zambiland » Sat Jul 09, 2011 6:42 pm

Very sweet! I'd love to hear some clips!
zambiland
Senior Member
 
Posts: 528
Joined: Fri Nov 24, 2006 12:13 pm
Location: Boulder CO

Re: Justin's amp reconfig

Postby Jon S. » Sat Jul 09, 2011 7:03 pm

Happiness is an SSP 2X12. Enjoy yours! :smile:

Image
"For me, I think the only danger is being too much in love with guitar playing. The music is the most important thing, and the guitar is only the instrument." Jerry Garcia
User avatar
Jon S.
Senior Member
 
Posts: 1372
Joined: Wed Apr 30, 2008 12:34 pm

Re: Justin's amp reconfig

Postby JustinJohn » Sat Jul 09, 2011 8:22 pm

Here's a video I recorded with my iphone... lots of wanking...

=)

User avatar
JustinJohn
Terrapin
Terrapin
 
Posts: 150
Joined: Tue Jun 21, 2011 5:35 pm
Location: Portland, Oregon

Re: Justin's amp reconfig

Postby JustinJohn » Sat Jul 09, 2011 9:29 pm

Some GD licks...

User avatar
JustinJohn
Terrapin
Terrapin
 
Posts: 150
Joined: Tue Jun 21, 2011 5:35 pm
Location: Portland, Oregon

Re: Justin's amp reconfig

Postby JamminJommy » Sun Jul 10, 2011 12:59 am

TONE!!!!!!!!

Peace,

Jommy
Strangers stopping strangers, just to shake their hand.

http://www.youtube.com/user/theuncommonsenseband
JamminJommy
Mickey
Mickey
 
Posts: 187
Joined: Fri Dec 10, 2010 4:26 am
Location: SF Bay / Long Beach

Re: Justin's amp reconfig

Postby PaulJay » Sun Jul 10, 2011 6:29 am

Hey Justin, Your playing and rig sounds great. What brand pick-ups are you using?
Thanks ,Paul
User avatar
PaulJay
Steal Your Face
Steal Your Face
 
Posts: 221
Joined: Fri Apr 08, 2011 10:40 pm

Next

Return to Jerry Tone

Who is online

Users browsing this forum: Boris Garcia, CapitalBC, ccw3432, Google [Bot] and 7 guests