Very poorly designed, lots of hum, noise, hiss,unreliable.
problems with tracks arcing on circuit board, burning. I advise you not to buy one.

Waaaaaaaay ahead of you, Mykey....

Really?
I've been using a .22 since 1990 with neery a problem other than a tube change. Slight hiss when the graphic EQ is clicked in but that's to be expected since there's a boost of the high frequencies. And yes the "gain" channel is a little noisy when it's 'up'. But ya know ... it's a 'gain' channel.
No hum (60 cycle) at all and I'll say that it's the only amp that I've ever owned where the 3 position ground switch actually works.
It's not a perfect amp but neither are my Z's, Tone King, GT's or Fenders.
My Boogie serves it's purpose and has reliably for 18 years.

We have never seen a mesa amp last more than 5 years.
"no hum at all" is pure bullshit, mesa amps are the noisiest in the industry, bar none. They are as reliable as Crate amps.Did your amp come with a fire extinguisher?
Anyone who buys one of these would never buy another one, and most of the people who own them are trying to get rid of what they have. There really is a sucker born every minute.

Sorry ... mine doesn't hum ... I swear(?)

That's because the power is turned off.

quote:

Originally posted by klasaine:
Sorry ... mine doesn't hum ... I swear(?)

the primary problem with mesa boogie amplifiers is the design of the fiberglass circuit board:
the fact that the circuit tracks are spaced too closely together, resulting in high voltage arching between the circuit tracks. This arching results in carbon tracks being formed, rendering the amplifier inoperable.
this carbon forms extra resistors (resistance) between the circuit tracks and is most commonly experienced between the plate and grid circuit tracks in the preamp circuitry.
sorry you can not clean off the carbon, it's impregnated all the way through the circuit board (the fiberglass has burned) The only way to cure the defect is to remove (by cutting or drilling) the carbon formation from the board. Once the carbon has been removed the amp will operate normally again (until more arching takes place).
another major problem is mounting components (such as resistors) on top of the copper circuit tracks. The resistor will start to arch to the circuit track causing hideous noises, or again rendering the amplifier inoperable. The resistor must be lifted up and away from the copper circuit track to form an air gap, to prevent the arching from occurring.
The factory coats the circuit board with a varnish which is supposed to prevent this arching, but it rarely works; and has known about the problem for many years...continues to ignore and deny the problem exists.
Overall almost every mesa amp ever made will fail due to this design defect, and is rather expensive to troubleshoot and repair...since the carbon traces are often very small and difficult to locate and remove.
Many technicians mis diagnose the problem and blame it on loose solder connections, but after the board is re soldered the problem comes back again. surprise.
sometimes reality hurts, and this is one of those times.
since i have repaired many of these defects and also managed an authorized mesa repair center, you can be absolutely confident that what i have described is accurate and truthful, sorry.

Bro, I believe ya.
But this is a gear 'review' section and my Mesa Boogie has been good to me for a long time. So I must defend her. I'm sorry for being contrary but this is my experience
"I was just saying ... 'MY' Mesa Boogie - Studio .22 is really quiet". A little 'airy' hiss with the EQ switched in, that's because I have it set to the 'classic V' pattern - so the highs are significantly boosted.
I really have had mine for 18 years with zero issues other than tube changes and a frayed power cord that "I" f'd up.
I'm a pro player. It's actually been one of my workhorses. Right now I'm in the pit for a production of 'Little Shop of Horrors' and my Boogie .22 has been seeing steady "ON" four (4) hours a night for the last week and a half. Tonight I have the night off. So me and the amp get a little rest.
Maybe I just got the best one they ever made? I'm kind of a lucky guy(?)

Hey, I'll be the first to say that I'm not the biggest Boogie fan in the world, but to dismiss the product line as to pure quality, by default, is little different than dismissing Fender or VOX by default. A Pro Junior is a pretty cool sounding little tube amp for decent bucks, but I've had preamp tubes fall out of the socket after a STUDENT hit a "power chord" - at a teaching studio, with the amp on '2'. VOX AC30? They munch rectifier tubes for breakfast; that's what they do, they're Lamborghinis.

Mesa Boogie noisier than other high gain amps? Nahhh. Match the gain stage with Marshall, Soldano, noise floor will be quite similar.

I ultimately didn't get on with my Boogie Mark III (changes in personal tonal preferences) but not until after I'd gigged it weekly for 7-8 years. Maintenance was all but non-existant; I changed tubes myself, and that was IT. It never once entered a repair shop. A mate has owned a .22 since that amp hit the market. It's been a total workhorse for him for years. Not my personal general purpose cup of tea, but for recording lap steel with a humbucker, it beats anything I've heard.

Sorry to hear of your troubles.

I know this post is old, but I joined musictoyz just so I could call mykey a fucking moron.What a load of crap.
It's my guess he applied at mesa and they told him to hit the road. Either that or he can't afford one. Okie Doke. I feel better. Ban away!