Mesa Boogie Mark III Blue Stripe Short vs Long Head.

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charleonthronez
Mark I
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Mesa Boogie Mark III Blue Stripe Short vs Long Head.

Post by charleonthronez » Tue Dec 09, 2014 3:20 am

Dear All ,

I have settled on the Mark III blue stripe , But i need your experiences about the differences between the short and long head.

For sure I need to make the R2 Vol. mod incase the head i will buy does not have this mod.

I am looking to buy the short head , but I have read in some posts that the R2 Vol mod Can Not Be done on the short head version and can be done on the long head only. Is that True? and if Not , I need to know how to make this mod on the short head as i will do it myself , so I would need the steps provided by pics if available for the mod.

Image(Short Head Version)

Image (Long Head Version)

I will be waiting for your replies suggestions for the Mark III blue Stripe.

Thank All.

JOEY B.
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Re: Mesa Boogie Mark III Blue Stripe Short vs Long Head.

Post by JOEY B. » Tue Dec 09, 2014 8:41 pm

Do a search for "stacked pot" as related to the RHY2 mod on a short chassis Mark III. It is here somewhere with pics. It can be done without sacrificing the Direct out control.
"One of these days, I'm gonna change my evil ways....... one of these days.

JOEY B.
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Location: North Alabama C+ Mafia-Kingpin

Re: Mesa Boogie Mark III Blue Stripe Short vs Long Head.

Post by JOEY B. » Thu Dec 11, 2014 11:57 pm

"One of these days, I'm gonna change my evil ways....... one of these days.

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fretout
Mark III
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Re: Mesa Boogie Mark III Blue Stripe Short vs Long Head.

Post by fretout » Tue Dec 16, 2014 3:10 am

I would opt for a short head, and pick up some concentric pots to use for the R2 mod, and install them on the presence control.
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Mark III Coliseum KDRG | Mark III+ Coliseum KDRG | Mark III DRG | Mark IV (Head) | Mark IV (Combo) | Dual Rectifier Revision D | Dual Rectifier Revision G

charleonthronez
Mark I
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Joined: Mon Dec 08, 2014 2:00 am

Re: Mesa Boogie Mark III Blue Stripe Short vs Long Head.

Post by charleonthronez » Tue Dec 16, 2014 4:21 am

fretout wrote:I would opt for a short head, and pick up some concentric pots to use for the R2 mod, and install them on the presence control.
Thank Man for your help and Support.

Mesa boogie Rules forever. \m/

charleonthronez
Mark I
Posts: 24
Joined: Mon Dec 08, 2014 2:00 am

Re: Mesa Boogie Mark III Blue Stripe Short vs Long Head.

Post by charleonthronez » Tue Dec 16, 2014 4:34 am

Is there any way to make R2 Gain Mod separate from channel 1 Gain?

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themisfit138
Mark III
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Re: Mesa Boogie Mark III Blue Stripe Short vs Long Head.

Post by themisfit138 » Sat Dec 20, 2014 2:05 pm

I have the R2 mod on my Mark III and it does not effect the gain on Channel 1. The pot for it is on the rear of the amp.
1985 Mark IIC++
1989 Mark III Blue Combo
1991 Mark IV Short Head

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fretout
Mark III
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Re: Mesa Boogie Mark III Blue Stripe Short vs Long Head.

Post by fretout » Fri Jan 02, 2015 1:52 am

charleonthronez wrote:Is there any way to make R2 Gain Mod separate from channel 1 Gain?
The R2 mod will only affect the volume on the "Rhythm 2" channel. The clean channel (or "rhythm 1") will not be affected by the mod.

I know you've been doing a lot of research about these Blue Stripes lately. Good luck on your search! I'm excited for you when you find it! Make sure you post a new thread once you pick it up, and don't forget to visit a couple of the archive threads so that we can update our own archives!

\m/ Mark III Mafia \m/
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Mark III Coliseum KDRG | Mark III+ Coliseum KDRG | Mark III DRG | Mark IV (Head) | Mark IV (Combo) | Dual Rectifier Revision D | Dual Rectifier Revision G

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fretout
Mark III
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Re: Mesa Boogie Mark III Blue Stripe Short vs Long Head.

Post by fretout » Mon Feb 16, 2015 1:08 am

charleonthronez wrote:
fretout wrote:I would opt for a short head, and pick up some concentric pots to use for the R2 mod, and install them on the presence control.
Thank Man for your help and Support.

Mesa boogie Rules forever. \m/
You got it man, anytime!

\m/
Image
Mark III Coliseum KDRG | Mark III+ Coliseum KDRG | Mark III DRG | Mark IV (Head) | Mark IV (Combo) | Dual Rectifier Revision D | Dual Rectifier Revision G

revgsmall
Mark III
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Re: Mesa Boogie Mark III Blue Stripe Short vs Long Head.

Post by revgsmall » Thu Feb 19, 2015 3:38 pm

I just sent my purple striped III to Mesa to have Mike B. do the "III+" mod, (he tweaks the circuits so that the values are more in line with my Mk IIC+). He is replacing the slave out on the back with a R2 volume control. In some 30 plus years of using Mark series amps I never once used the "slave out" so I won't miss it at all. Other wise the concentric knob looks to be a way of having and eating cake.

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