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Last night I re-tubed my Mark V with all Tung-Sol 6l6's and 12ax7's and a Electro-Harmonix 5U4GB.

But on Sunday I got a google alert for a deal I could not pass up and by the time I was able to test the Mark I instead got my new toy I could not pass up. It's not a Boogie but it was $250 used on Guitar Center.

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I have had the combo from back when they were brand new and always wanted to see how it would do with a better closed back cab.

It sounds really good for what it is.
 
Gigged the IV in its head form tonight. Went to a seminar for work today and got some mildish food poisoning from either the cold cut bar or potato salad :columbo

Show was in ft. Collins, about an hour usually, took 2hrs in rush hour being on the verge of puking/sharting the whole time

Massive technical difficulties first half of the set, picked it up second half and jam sections were on point at least

It was just a bowling alley, not very many people

Still here supporting the homies/waiting for check

Still have an hour drive home ahead of me

Such is life :rofl

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Fired up the Mark V today for the first time in a bit, damn this thing really is cream of the crop

Wish I could gig it but need to solve the intermittent switching issues first. Also something weird happened jamming today, just lost all power for a minute…. Figured a fuse must’ve blown. Checked fuse, fully in tact. Popped back in restarted the power strip and and came back just fine :wat :idk


Had fun gigging the IV last week but truthfully it’s just so insanely loud, venues vary but that last spot was not quite to the sweet spot on the master. And it was still fuckin loud lol


Planning on bringing my III to next weeks gig, at least that one’s 60watts should be able to hit the sweet spot without issue
 
Fired up the Mark V today for the first time in a bit, damn this thing really is cream of the crop

Wish I could gig it but need to solve the intermittent switching issues first. Also something weird happened jamming today, just lost all power for a minute…. Figured a fuse must’ve blown. Checked fuse, fully in tact. Popped back in restarted the power strip and and came back just fine :wat :idk


Had fun gigging the IV last week but truthfully it’s just so insanely loud, venues vary but that last spot was not quite to the sweet spot on the master. And it was still fuckin loud lol


Planning on bringing my III to next weeks gig, at least that one’s 60watts should be able to hit the sweet spot without issue

is the v getting the dreaded 'loop-itis'?

i've jumpered my two other mesas loops cause the jacks go squirrelly and intermittent.

OH.. and being a broken record, man, i cannot recommend putting a passive attenuator in the loop enough! even if you just knock a few dbs off its the difference between a enough power to sponge the amp up a bit and let it breathe and just being way too loud on 2.
 
is the v getting the dreaded 'loop-itis'?

i've jumpered my two other mesas cause the jacks go loopy and intermittent.


Not the loop issue… I randomly will completely lose sound when switching channels sometimes. The amp itself shows the correct channel but there’s no sound. It can be remedied by switching back and forth again. It’s very intermittent and random tho. Not a problem I’ve been able to find others having either, until very recently. A dude on the boogie board is recently having similar issues

I assume it’s gotta be a relay on its last leg
 
Not the loop issue… I randomly will completely lose sound when switching channels sometimes. The amp itself shows the correct channel but there’s no sound. It can be remedied by switching back and forth again. It’s very intermittent and random tho. Not a problem I’ve been able to find others having either, until very recently. A dude on the boogie board is recently having similar issues

I assume it’s gotta be a relay on its last leg

gaaaaaar... 🫤
 
I’ve ruled out the footswitch too as I’ve tried different DIN cables and even got an aftermarket switch that uses the 1/4” jacks too. Still ultimately ends up happening again randomly even when I think I’m through the jungle
 
OH.. and being a broken record, man, i cannot recommend putting a passive attenuator in the loop enough! even if you just knock a few dbs off its the difference between a enough power to sponge the amp up a bit and let it breathe and just being way too loud on 2.
Do you mean on the Mark V:25 or V:35? Because the 90W model already has the output knob and the loop level knob which will do the same job.

Functionally this doesn't do anything other thangive you more gradual volume control. Without the loop my Mark V 90 gets very loud very quickly.
 
Not the loop issue… I randomly will completely lose sound when switching channels sometimes. The amp itself shows the correct channel but there’s no sound. It can be remedied by switching back and forth again. It’s very intermittent and random tho. Not a problem I’ve been able to find others having either, until very recently. A dude on the boogie board is recently having similar issues

I assume it’s gotta be a relay on its last leg
If you have the 90W model, have you checked if you get sound out of the tuner out?

That gives you the entire preamp signal. Still questioning why Mesa made that design, it's absurd for something called "a tuner out".
 
Do you mean on the Mark V:25 or V:35? Because the 90W model already has the output knob and the loop level knob which will do the same job.

Functionally this doesn't do anything other thangive you more gradual volume control. Without the loop my Mark V 90 gets very loud very quickly.

nah i meant the mark iv, which i dont think has a loop volume! if the v has one thats a great feature to integrate cause gads does my 60w master get loud fast.
 
nah i meant the mark iv, which i dont think has a loop volume! if the v has one thats a great feature to integrate cause gads does my 60w master get loud fast.
For real. With the loop (and output/solo knobs) disabled, I can run Mark V 90 ch2 and ch3 masters at like 9 o'clock before it gets too damn loud. Turn the loop circuitry on, no problem just dialing in the output where you want.

The solo knob stacks on top of whatever output volume setting is used. It is pretty touchy, can't turn that up too much before it also gets way too loud.

I have the settings about like this:

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Any of y’all have anything that converts midi for the mark V? I think I may get this to use with my QC to change channels etc.

 
If you have the 90W model, have you checked if you get sound out of the tuner out?

That gives you the entire preamp signal. Still questioning why Mesa made that design, it's absurd for something called "a tuner out".


Wanted to actually test this, went on a switching spree til the problem reared it’s head, and the answer is yes I am indeed still getting signal from the tuner out still when this issue occurs


Whether or not that info is helpful to the core issue I’m not sure :LOL:
 
Last night I re-tubed my Mark V with all Tung-Sol 6l6's and 12ax7's and a Electro-Harmonix 5U4GB.

But on Sunday I got a google alert for a deal I could not pass up and by the time I was able to test the Mark I instead got my new toy I could not pass up. It's not a Boogie but it was $250 used on Guitar Center.

View attachment 43912

I have had the combo from back when they were brand new and always wanted to see how it would do with a better closed back cab.

It sounds really good for what it is.
The vypyr tube stuff is fucking killer.

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Sweet jeebus that sounds great dude.
I honestly love this amp so much. I've had many amps over the years, and I've still got 8 or so. But this is definitely a top tier amp for me.

At the moment my amps from most favourite to least:

Mesa Mark Five
Orange Rockerverb MKIII (boosted with a Klon pedal; sounds orgasmic!)
Mesa Boogie Dual Rectifier multi-watt (2018 version)
Diezel VH4
Marshall JVM410HJS
Diezel D-Moll
Peavey 6505+
Laney VH100R
Diezel Hagen
 
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