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Mesa Boogie Walkabout Mega-thread Part 10

Found this today, thought some here might appreciate having the info.

Below is copy of spec sheet for the OEM (Mesa) version of the 12”, 4 ohm speaker from the Scout cab. Somebody ordered a backup from Mesa when they were still available and the spec sheet was included.

Photos are from my cab.
View attachment 5277350 View attachment 5277351 View attachment 5277352

Before getting too excited about this, what he received is not a production speaker. It was a hybrid between a series 1 and a series 2, with a series 2 motor and basket but a series 1 pole piece complete with aluminum trim piece and series 1 screen dust cap. With that dust cap, the motor should not be vented which is why we went to the full series 2 design using the paper dust cap. Those specs are not correct, not even very close.
 
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Before getting too excited about this, what he received is not a production speaker. It was a hybrid between a series 1 and a series 2, with a series 2 motor and basket but a series 1 pole piece complete with aluminum trim piece and series 1 screen dust cap. With that dust cap, the motor should not be vented which is why we went to the full series 2 design using the paper dust cap. Those specs are not correct, not even very close.
Thanks for fact-checking me, @agedhorse , I’ll delete the post.

Is the speaker referenced in the (now deleted) photos a hybrid, too? This is what is in my cab and, as far as I know, is the original.
I know you’ve stated that an 8-ohm 2512 DeltaLite II would be no worse and possibly better than some of the original 12” 4-ohm speakers. Would mine be one of the candidates for replacement? Not really wanting to spend the extra $$, but would consider, if that is your recommendation.

Photos from deleted post reproduced below.

Thx.


IMG_5994.jpeg
IMG_5995.jpeg
 
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I’ve not seen that hybrid before. I have no idea how it got out in the wild or if it will work as well as the correct driver.
 
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Just had to return to the WalkAbout M-T to post one... had my old silverface Mpulse WalkAbout / Scout 15 combo out on the job yesterday. It was a little bit chilly... but workable. The job; live music for a Christmas Market, from a neo oldtyme band. Set on the front porch of an 1812 country farmhouse in Botetourt County in rural Virginia. We had not played together for quite a while... life... pandemics... take your pick. It was great to get out and play with the team again.

This old amp still just gets it done. I can drop low D's and C's all day through that radiator combo-cab and it takes it all.

NRB_Woodsdale.jpg
NRB 1.jpg


*I sure do miss @Chef. :crying:
 
Just had to return to the WalkAbout M-T to post one... had my old silverface Mpulse WalkAbout / Scout 15 combo out on the job yesterday. It was a little bit chilly... but workable. The job; live music for a Christmas Market, from a neo oldtyme band. Set on the front porch of an 1812 country farmhouse in Botetourt County in rural Virginia. We had not played together for quite a while... life... pandemics... take your pick. It was great to get out and play with the team again.

This old amp still just gets it done. I can drop low D's and C's all day through that radiator combo-cab and it takes it all.

View attachment 5278982 View attachment 5278983

*I sure do miss @Chef. :crying:

Nkce wheels on the combo! I have a similar set up on my Scout 12. I’m sure it’s much needed on that 15!! Those are heavy for just the single handle they had installed on top.
 
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@agedhorse

Sounds like Mesa will be back in the European market after a few years absence.

Kudos to Gibson!

Would enjoy reading what that’s like for you; extra work, pressures, opportunity…?

Yes, the opening of the new Gibson Garage in London is part of the relaunch into Europe as a whole. There are a lot of complicated moving parts.

Extra work? - check
Pressure? - check
Opportunity? - good question, I hope so.

This has been an enormous project. Our main transformer vendor decided to simply shut down at the beginning of COVID rather than follow through with the project of updating all of out transformers for the new (primarily EU driven) safety standard. I inherited the job (of global regulatory engineer) to bring all of our transformers forward with a new vendor who proved to be far better at this than I feared. This included a formal analysis and redesign of about 60 different parts, then building samples, testing for tone/operation and then safety. At the same time, we needed to bring all of our guitar amp models forward to the new safety standards, including testing and certification. The bass amps which I designed were already designed and tested to the new standard so that wasn't an issue, but the global relaunch includes all products, not just bass.

As this project started, COVID completely hammered the supply chain. We had components within the transformers that were not available because the factories producing the parts and materials were locked down, workers were sick, our factory had to close for a few months, even the test lab we used fell far behind because
their workers couldn't work together in the same spaces. In my 40+ years as an engineer I have never worked under conditions like this, and part of my career was in the touring side of the audio business where things are rarely predictable and always scrappy. To say I'm glad this project is over would be a huge understatement, but I have to say that Gibson was a great partner through all of this.
 
Yes, the opening of the new Gibson Garage in London is part of the relaunch into Europe as a whole. There are a lot of complicated moving parts.

Extra work? - check
Pressure? - check
Opportunity? - good question, I hope so.

This has been an enormous project. Our main transformer vendor decided to simply shut down at the beginning of COVID rather than follow through with the project of updating all of out transformers for the new (primarily EU driven) safety standard. I inherited the job (of global regulatory engineer) to bring all of our transformers forward with a new vendor who proved to be far better at this than I feared. This included a formal analysis and redesign of about 60 different parts, then building samples, testing for tone/operation and then safety. At the same time, we needed to bring all of our guitar amp models forward to the new safety standards, including testing and certification. The bass amps which I designed were already designed and tested to the new standard so that wasn't an issue, but the global relaunch includes all products, not just bass.

As this project started, COVID completely hammered the supply chain. We had components within the transformers that were not available because the factories producing the parts and materials were locked down, workers were sick, our factory had to close for a few months, even the test lab we used fell far behind because
their workers couldn't work together in the same spaces. In my 40+ years as an engineer I have never worked under conditions like this, and part of my career was in the touring side of the audio business where things are rarely predictable and always scrappy. To say I'm glad this project is over would be a huge understatement, but I have to say that Gibson was a great partner through all of this.

Thanks so much for sharing this!

Never had anything against Gibson. Became a fan about 10 years ago. Now liking Gibson more by the day.

Are you gonna be interviewed by Anderton’s for their “All About The Bass” series? Please? They seem quite chuffed to be stocking Mesa again soon.

Any chance Gibson’s GB440 bass amp will get a WalkAbout-style modern refresh?

Wish you - and everyone involved - all the best!
 
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Thanks so much for sharing this!

Never had anything again Gibson. Became a fan about 10 years ago. Now liking Gibson more by the day.

Are you gonna be interviewed by Anderton’s for their “All About The Bass” series? Please? They seem quite chuffed to be stocking Mesa again soon.

Any chance Gibson’s GB440 bass amp will get a WalkAbout-style modern refresh?

Wish you - and everyone involved - all the best!
Thanks. I don’t know the answer to any of your questions unfortunately!

I did hear that hundreds of bass amps/cabs will be heading for Europe shortly so that should improve the current situation for bass players.
 
Her Andy, @agedhorse, when you were going to Davis did you know Prof. Henderson? He taught Film and art for 40 years. Anyway, I'm in a 3-piece blues band with him now for the last 8 years. Just curious.
I didn't know him personally, but I did work with him a few times when he was playing with Bill Scholer's blues band and also from the art community since the father of my riding partner's (from our touring equine performance theatre group) was also an art professor in Sacramento. This goes back many years.