ADA Depot - A Forum To Support Users of ADA Amplification Gear

ADA Preamps => Original MP-1 => Topic started by: Rusty on February 24, 2015, 08:12:34 AM

Title: Moding the 3TM board
Post by: Rusty on February 24, 2015, 08:12:34 AM
Dear folks, or MJMP if your about.

Is it possible or can this be done? I am maybe thinking about getting a 3TM board from MJMP and is it possible to mod the last stage to cathode follower to get a high gain Marshall sound?
As far as I have read, the 3TM has ultra amounts of valve distortion and is nice and quiet for so much of it it can deliver, sacrificing a little gain would be OK for me if it produced a truer Marshall'y sound.

Would it be worth doing this to achieve more gain plus a closer Marshall sound?
   
Title: Re: Moding the 3TM board
Post by: RobbHell on February 24, 2015, 09:42:58 AM
The Gain stage is a Cathode Follower into a tone stack exactly like a Marshall mod you speak of. 5 Cascading gain stages the sixth being a Cathode Follower.

Youll be very happy.
Title: Re: Moding the 3TM board
Post by: RobbHell on February 24, 2015, 10:11:35 AM
The descriptions are a bit confusing. Yes the 3TM has tons of useable gain/distortion but it can be dialed down to get even cleaner tones.

The Mod4 II is described as a Marshall Tone. The 3TM uses this similar layout with an added gain stage and into a Cathode follower.

A 3TM with outboard eq can cover about any tone or sound you might be trying to achieve.
Title: Re: Moding the 3TM board
Post by: MarshallJMP on February 24, 2015, 03:07:13 PM
Well Rusty like Rob already explained there's no need to mod it since it has the cathode follower.The 3TM has a marshall voicing but more the hot rod marshall tone.Check youtube,there are some videos of 3TM modded mp-1's.This will give you an idea on how it sounds.Just do a search for mp-1 3tm.
Title: Re: Moding the 3TM board
Post by: Rusty on February 25, 2015, 01:10:31 PM
Thanks guys for that as I was not aware of that info. 
Title: Re: Moding the 3TM board
Post by: MarshallJMP on February 25, 2015, 02:06:34 PM
No problem,you can't know everything can you?  :lol:
Title: Re: Moding the 3TM board
Post by: Rusty on February 25, 2015, 02:10:38 PM
 :facepalm:   :)