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Hi there, I am having one of those GAS attacks and I would like to ask for some opinions. I have a 1979 Mark IIA, 60W, EQ, EVM12L, non reverb combo. I bought this like 5-6 years ago and I have been working really hard to remove all kinds of strange noises out of it. I even modified the Lead...

Hi there, I am not a frequent poster but I come around here from time to time. I have a 1979 Mark IIA (60W, non reverb) that I bought attached to a rack mount adapter, nothing else. I bought a Combo shell and a vintage EVM 12L to have a complete package. The main problem with this amp is that...

Moved my post to the MArk IIA Rev 60W/100W topic

Thanks! I think I am going to copy/paste this post there and probably this should be closed.

Hi, I have a IIA that has all the quirks of an old 33 years old combo but sounds really great. Now I want to get a Mesa F50 to get something more modern in features. Can you compare the tone of both amps? Thanks!

Hi there, I am not a frequent poster but I come around here from time to time. I have a 1979 Mark IIA (60W, non reverb) that I bought attached to a rack mount adapter, nothing else. I bought a Combo shell and a vintage EVM 12L to have a complete package. The main problem with this amp is...

My cab is exactly the same but with black tolex.

So, I have a EVM 12L now on the combo, the original speaker. To be honest the tone is a whole world apart from the Celestion tone. Where the Celestion are middy and extremely well detailed in this part of the spectrum, the EVM 12L is just the opposite. My first impression was like if all the...

I have a EV Force 12 and a EVM12L on the target. I am going to pull the switch... Thanks everyone who has contribuited to this post. :D I'll let know how it goes.

Thanks! I think I am just paranoid.

I have this model and, when the gain is low the amp is pretty clean. However, when I crank the gain or when I set the master fairly high there is quite a lot of noise. Still the noise level is quite ok compared with the volume but I have played modern Mesa's that are really clean in this...

Ok, I have discovered that the Celestion Century had a defect from factory. Nothing to do with the bass output from the amp. Still the bass response is tremendous and a speaker that handles it is needed. Anyway, when I find a suitable substitute I will post it here. I am adding even more noise...

Really? I always thought the mark IIA was a refinement of the blackface design. May be then a Jensen speaker will suit the amp. A trusted vendor offered me C12k but I rejected it.cause i thought I wouldn't be appropriate for this amp.

I do not like Jerry Garcia tone that much, and I've missed the JBL K120 anyway. :lol: This amp truly has a huge amount of bass. I just tested it with a Marshall 1036 with 2xG12H and they were in limit of low frequency reproduction. They give the impresion that, if I push the volume, they may...

Daniel, thanks again for the info. Great help here! I know quite a bit about guitar speakers, but know nothing about this "uncolored" side of the family. So, I have spoted a cheap JBL K120. Have you tried this speaker? Is it too harsh with distortion?

Wow, Daniel. That's great info! Mine is a 60w model. It seems that a JBL K120 could be a nice option for versatility. The altec also looks like nice option too.

Ah! I didn't know there were that many speakers to choose from. Were all of them woofers? I guess the EVM 12L is considered the best.

What do you mean by "original speakers"? I thought the Mark IIA (II-series in general) where shipped with the EVM 12L only. Or is this a list of similar speakers? BTW. Is there any JBL speaker model that I may look into? This JBL K-l20?

The Deltalite looks like a nice alternative! Do you think its quality is comparable with the EVM 12L. I would like to buy something of a high quality. I think this amp beg for a flat output speaker. With the Celestion is really middy.

Hi there! I have a Mark IIA combo that has a broken speaker... wait, BROKEN?!?! Well, It is not the original EVM 12L 8) . Anyway, the amp used to have the EVM 12L but it was way too heavy so I sold it (blame me for that). Lightness was my point back there so I bought a Celestion Century. I...