Search results

I got the Coli back last Wednesday. I wanted to a wait few days to post anything until the new caps burn in. This amp is freakin amazing! It should be called The Hammer of the Gods not Coliseum. I just turned it up to 1.5. What a wall of sound! The low end is full and tight. The III+ mod warms...

You could ship just the chassis back to Mesa for service. You need to get an RMA number from them first.

What you have is an original 60 watt Mark IIc+. It definitely needs to be serviced since it's been sitting for awhile.

They all sound and feel different but I like them all. Don't tell anyone but I probably like my III+'s better.

I paid $2125 for the Mark III Blue Stripe Coliseum I picked up recently.

The clean channel is warmer and smoother but still bold and punchy. My Simul III+'s cleans are softer and rounder. Next time I talk to Mike B. I'll ask him about the parts he changes that effect Channel 1.

The + mod makes the amp smoother and more vocal. The gain seems to be about the same as a c+. I had Mike B. reduce the brightness on my Simul III+'s so they're like the early Simul c+'s. My III Coli landed at Mesa today. Should get it back in a couple of weeks.

The + mod.

Installed a pair of Mesa labeled STR-387's in the SRG. The 387's really bring the amp closer to a c+. The clean's are detailed and bold. The overdrive is harmonically rich and smooth. In triode mode the amp gets close to a Simul c+.

What would happen if I powered up both of my Coli's at the same time? :|

Thanks! My ears are still ringing!

Got my Mark III+ SRG back from Mesa today. It sounds awesome with the + mod and the pentode/triode switch. Putting it in triode mode really sweetens it up. I think Mike B. said triode takes it down to around 15 watts but it's still loud. Pentode tightens it up and adds punch. I'm running it thru...

Just dropped off the Mark III Coli at the UPS Store for it's trip back to Mesa. I was playing it last night thru a 2x12 Half Back loaded with MS-12's and it sounded really good. I thought maybe I should keep it stock and then I switched to my III+ DRG Wide Head with the 105 transformer. The III+...

I picked up a Mark III Simul Blue Stripe Coli earlier this week. This is not your grandfather's Mark III. It's a nasty amp! Ton of usable gain. Very bright but in a good way. No flub using my normal settings. The low end is tight. It sounds just as huge as my c+ Coli. The c+ is smoother but III...

No experience with a III++. The III+ has enough gain for me. You'd have to ask Mike B. about the pentode/triode switch for a Simul. I have Mike reduce the brightness on my Simuls like the early c+ Simul's.

I have 5 III+'s that Mike serviced and modded. He just finished number 6. I picked up Mark III Coliseum yesterday that I'm gonna send in for service and the III+\R2 mods. The + mod gets close to a c+ and the R2 mod makes R2 usable. Which is the main reason I like the Mark III's. I spend a lot...

First time posting a pic. https://www.flickr.com/gp/187287241@N04/79e97q

Thanks! Just fired it up. Pots are scratchy so I pulled the chassis to clean it. No writing on the chassis but the circuit board has KDRG on it. It was owned by a smoker so it has 30 years of gunk on it. It'll clean up and be on it's way to see the Wizard of Amps.

Just picked up a Mark III Coli Blue Stripe today. It needs a good cleaning but is in great condition. Original Chinese 12ax7's but no 415's. Already got the RMA number from Mesa for service and the III+\R2 mods.

Sounds good! I haven't tried a 60 watt c+ yet but my SRG III+ rips! I was talking with Mike B. recently about how good the 60's are. He said the 60 watt c+'s and Mark III's used the same transformers.