Mesa Boogie 2x12 Vertical Slant Half Back

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FXR
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Mesa Boogie 2x12 Vertical Slant Half Back

Post by FXR » Thu Sep 13, 2012 10:13 am

I am not sure what this is, but a little reading tells me maybe 1980's possibly, so I am hoping for some help.

It's a 2x12 vertical Slant Half Back. On top where the slant is there is a Black Shadow MC-90 by Celestion at 8 ohms and 90 watts. On the bottom in the closed section is a Black Shadow EVM by ElectroVoice at 8 ohms and 200 watts. It's wired in parallel for 4 ohms.

Anyone got an idea on what it is please?

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Mesa Express 5:25 1x12
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cho
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Re: Mesa Boogie 2x12 Vertical Slant Half Back

Post by cho » Thu Sep 13, 2012 11:53 am

Well, you have provided most of the info. I think these 2x12's are some of the best sounding speaker cabs out there, especially for the price. You can usually pick them up for ~$350. They sound good with the EV on the bottom, or with MC-90's in both the top and bottom. Not sure when they were made though...

FXR
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Re: Mesa Boogie 2x12 Vertical Slant Half Back

Post by FXR » Thu Sep 13, 2012 12:28 pm

Thanks for the reply, cho. It sounds amazing with my Express 5:25 plugged in. Amazing bottom end and just plain loud! I am running it as the only speaker plugged into the 4 ohm inputs. If I add the built in v30 it will only be 2 ohms.
Mesa Express 5:25 1x12
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BigBadWolf
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Re: Mesa Boogie 2x12 Vertical Slant Half Back

Post by BigBadWolf » Thu Mar 10, 2016 3:52 pm

Guess who just got one of those ;D
Mark III red stripe simul class, Mark V combo (with old half back) and Mark V head with three quarter cab.
Played with few PRS's.
No. I don't match with my gear as a guitarist. How could I? I have the best gear there is.

tommyhawk13
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Re: Mesa Boogie 2x12 Vertical Slant Half Back

Post by tommyhawk13 » Mon Mar 14, 2016 10:54 am

FXR wrote:I am not sure what this is...
It's awesome, that's what it is!
1987 .50 Caliber, no eq
Quad preamp
50/50 Stereo power amp
4X12 Half back 280w MC90's/Eminence vintage 50's
4X12 Half back 460w MC90's/EV's

OryCheyne
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Re: Mesa Boogie 2x12 Vertical Slant Half Back

Post by OryCheyne » Tue Mar 15, 2016 6:27 am

Awesome + 1

Picked one of these up a month back too. It came with original 50w Vintage speakers, but it now has MC90's top and bottom. Definitely from the '80's.
I also want to know what these were called, model number if there is one.
What speaker options did Mesa release these in?
Why do the Mesa signs on the front appear to be hand painted? Wha

MkIII Renegade
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Re: Mesa Boogie 2x12 Vertical Slant Half Back

Post by MkIII Renegade » Sat Mar 19, 2016 12:04 pm

Those are simply Mark series vertical 2x12s. Could have been as early as '84 or so. GREAT cabs!
Quad Preamp/2:90
MkIII+ Simul-Class & MkIVb
Mark 4x12 Stack
Charvel 650 Custom/EMG85/SLV/SLV+SPC
Charvel San Dimas I Koa USA
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Charvel 475 Exotic
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Seanboy
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Re: Mesa Boogie 2x12 Vertical Slant Half Back

Post by Seanboy » Mon Mar 21, 2016 1:34 pm

I've thought about closing off the top section of mine.. To those of you who have done this, what's your thoughts.

tommyhawk13
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Re: Mesa Boogie 2x12 Vertical Slant Half Back

Post by tommyhawk13 » Tue Mar 22, 2016 9:01 am

Boogie offered a panel to close the top. I have one, and it tightens the bass up, and cuts out some high end.

These came with EV/C90 combination, 2 C90's, 2 EV's, and probably Eminence vintage 50's in the bottom and a C90 in the top.

I think all of the vertical halfbacks were ported in the bottom.
1987 .50 Caliber, no eq
Quad preamp
50/50 Stereo power amp
4X12 Half back 280w MC90's/Eminence vintage 50's
4X12 Half back 460w MC90's/EV's

gts
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Re: Mesa Boogie 2x12 Vertical Slant Half Back

Post by gts » Tue Mar 22, 2016 2:19 pm

They also came with MS-12's and or a combo of an MS-12 and another speaker, usually the other was an EV 12L

The 2x12 vertical halfback cabs were ported in the bottom, 4x12 halfbacks were not.

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