tell me about the Mark III Coliseum

[Neeklaus]

Just curious about the specifics, i can't fine much online...apparently they are rare-ish? "Still of the Night" also seems to be a Mark III Coliseum from what I gather.
are they / can they be simulclass?
how many watts? 300? or 150? can the wattage be reduced at all?

any info is much appreciated.

pics ALSO appreciated

 

[steve_k]

The Mark III Coliseum was produced in 1982 and about 300 were made. 6-6L6 tubes for 180 watts of gut-wrenching, jaw clenching Mesa pain

It does have a half power switch standard on it. But, that just takes it back to to Mark III territory which in itself can dish out an aural onslaught. Graphic EQ was optional, as was reverb. Medium head shell.

I can't imagine the headroom that fecker has. I have a Mark III red stripe and it kicks all kind of ass. A very sweet amp for sure. Never played a Coliseum though.


Steve

 

[Neeklaus]

how does simul class work? 4 6L6s and 2 EL34s?

 

[Drew]

how does simul class work? 4 6L6s and 2 EL34s?

Is there a Simul Coliseum? Every one I've seen has just had a "Full Power/Half Power Switch" and they were all 6L6s.

 

[Neeklaus]

im sure you're right...i just figured they made them.

 

[Anonymous]

I owned a Simul Coloseum with reverb and EQ. It was an awesome amp! Very loud, very tight. I was in a thrash band when I had it. I still kick myself for selling it. I traded it for a Quad Preamp at Lab Sound in Garden Grove. I bought it originally from Valley arts in N. Hollywood in early 85'

 

[stratotone]

how does simul class work? 4 6L6s and 2 EL34s?

Is there a Simul Coliseum? Every one I've seen has just had a "Full Power/Half Power Switch" and they were all 6L6s.

My Mark III Coli has the full/half switch and a simulclass sticker on the back of the chassis.

Pete

 

[Zachman]

how does simul class work? 4 6L6s and 2 EL34s?

Is there a Simul Coliseum? Every one I've seen has just had a "Full Power/Half Power Switch" and they were all 6L6s.

Yes, I am the original owner, and bought the amp new in 1986. I have the 13th one of approximately 200. It is Simul-Class (Was an option) but is Simul-Class--ALL the time... There is no way to disengage the Simul-Class circuit like on the regular MKIII line (which has the Class A or Simul-Class Modes switch on the back panel).

I can run all 6L6s, or the middle 2 tubes, can be exchanges w/ (2) EL34's. It's 180 Watts

 

[messenger]

Do they sound any different than a regular Mark III?

 

[Gainfreak]

I own a Simulclass MKIII and it kills. I don't run 34's in mine as I prefer to use all 6l6's but that's just me!! They are great amps.

As far as them sounding like a regular MKIII they do up until a point until you crank them. The regular MKIII will become muddy whereas the extra headroom of the Coli is just insane.

 

[blackba]

Does the coliseum have enough clean head room?

I bet the punch from the coliseum mark III is awesome. I would love to try one with bass. My mark IV actually sounds really nice with a bass (using an ampeg 410 bass cab).

I didn't realize there were so few made, I thought they were more common.....

 

[Capulin Overdrive]

did Sykes use simulclass?

 

[Gainfreak]

did Sykes use simulclass?

yes!! He used 2 actually!!

One slaved into another with a chorus between them


EDIT!!!

Not sure if it was a simulclass but he did use 2 coli heads!!!

 

[Digital Jams]

did Sykes use simulclass?

yes!! He used 2 actually!!

One slaved into another with a chorus between them

That makes me so freaking horny

 

[Gainfreak]

did Sykes use simulclass?

yes!! He used 2 actually!!

One slaved into another with a chorus between them

That makes me so freaking horny

 

[moltenmetalburn]

how does simul class work? 4 6L6s and 2 EL34s?

Simulclass is short for simultaneous class.

the class is how the tube is run.

most amps are class AB which is push/pull OR Class A which is always on at full bore.

So what it means is that half of the tubes are run push pull and half are run class a, it sweetens the tone a bit.

I had a mesa 90/90 years ago that was simulclass and sounded awesome!

you can not mix tube types in a simulclass amp.

 

[Gainfreak]

how does simul class work? 4 6L6s and 2 EL34s?

Simulclass is short for simultaneous class.

the class is how the tube is run.

most amps are class AB which is push/pull OR Class A which is always on at full bore.

So what it means is that half of the tubes are run push pull and half are run class a, it sweetens the tone a bit.

I had a mesa 90/90 years ago that was simulclass and sounded awesome!

you can not mix tube types in a simulclass amp.

With all due respect... Yes you can mix tubes in a Mesa simulclass amp for sure. Mesa has it setup that when you run the amp in Class "A" only the two outer tubes are working in "class a" but when its in simulclass it runs all 4 tubes which can in fact be a combination of 34's and 6l6's. That's how all the simulclass models work on the Mark series!

Cheers!!

 

[moltenmetalburn]

how does simul class work? 4 6L6s and 2 EL34s?

Simulclass is short for simultaneous class.

the class is how the tube is run.

most amps are class AB which is push/pull OR Class A which is always on at full bore.

So what it means is that half of the tubes are run push pull and half are run class a, it sweetens the tone a bit.

I had a mesa 90/90 years ago that was simulclass and sounded awesome!

you can not mix tube types in a simulclass amp.

With all due respect... Yes you can mix tubes in a Mesa simulclass amp for sure. Mesa has it setup that when you run the amp in Class "A" only the two outer tubes are working in "class a" but when its in simulclass it runs all 4 tubes which can in fact be a combination of 34's and 6l6's. That's how all the simulclass models work on the Mark series!

Cheers!!

I stand corrected, I only have experience with the simulclass 90/90 which could only accept 6l6 tubes and did not have a switchable mode to class A only.

should have checked it out first before I assumed it was the same, sorry guys.

heres the manual where it is stated clearly...
http://www.mesaboogie.com/manuals/Mark%20III.pdf

 

[Gainfreak]

how does simul class work? 4 6L6s and 2 EL34s?

Simulclass is short for simultaneous class.

the class is how the tube is run.

most amps are class AB which is push/pull OR Class A which is always on at full bore.

So what it means is that half of the tubes are run push pull and half are run class a, it sweetens the tone a bit.

I had a mesa 90/90 years ago that was simulclass and sounded awesome!

you can not mix tube types in a simulclass amp.

With all due respect... Yes you can mix tubes in a Mesa simulclass amp for sure. Mesa has it setup that when you run the amp in Class "A" only the two outer tubes are working in "class a" but when its in simulclass it runs all 4 tubes which can in fact be a combination of 34's and 6l6's. That's how all the simulclass models work on the Mark series!

Cheers!!

I stand corrected, I only have experience with the simulclass 90/90 which could only accept 6l6 tube s and did not have a switchable mode to class A only.

should have checked it out first, sorry guys.

No need to sorry at all!! That simul-class thing from boogie is confusing as hell!! I only know that you can mix tubes because I use them all the time.
With that said, Im not even sure if the amp is doing what is claims to do for real lol
Ive been told that when you run a boogie simulclass amp in class "A" its not really true class "A" which also adds to the confusion because I am a techno noob LMAO!!

 

[EXPcustom]

Crap!

I had an oppurtunity to get a long head, simul class, coliseum mark III all options except reverb for 700 bucks and it even had the export transformer. I passed on it because I assumed it was just like a another markIII.