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Conference napalm::guitar

Title:GUITARnotes - Where Every Note has Emotion
Notice:Discussion of the finer stringed instruments
Moderator:KDX200::COOPER
Created:Thu Aug 14 1986
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:3280
Total number of notes:61432

1842.0. "The ADA/Marshall Connection" by CASPRO::KALINOWSKI () Tue May 29 1990 14:27

    	OK all you   Midi...Preamp....Rack...Monsters.....lets have some
    feedback on my recent Butchery.
    
    From all the previous advise in this file I went out and bought me an
    ADA MP1 last week. (400$ used at Daddy's. Got in a fist fight for it at
    the counter to because some dude called for it an hour earlier....he
    showed while I was paying for it HA HA HA )
    
    Back to my story.....In trade Daddy's said they'd give me 200$ for my 
    Marshall JMP Master Lead II. I laughed and walked out with My Head and
    New ADA.
    
    The ADA sounded like crap through the front of the Marshall head ....
    Double preamping didn't work to well. Then an idea hit me. Now this is the 
    good part ........
    
    I brought my head to the Shop. Had the put a "Line In" in the Back of
    my head directly to the power section by passing the preamp. 	
    
    				Cost : 35$  
                                Sound: Like a Million Bucks
    
     I run my Master Volume at 10 and adjust the real volume from the ADA
    output volume. I get the crunchiest cleanest ( noise free ) distortion 
    you could imagine. And in the clean mode the sweetest sound. The nice
    thing is that I was still able to keep My Marshall Head.
    
    
    I'm wondering if any of you have done this sort of thing to your Heads
    or have thought about it ?  
    
    Is this an ultra cheep alternitive to buying a 50 watt tube power amp and 
    at the same time still enable you to keep your old reliable Marshall head ? 
    
    If there are people out there who have done this how do you reccommend  
    adjusting the volume..by using the output vol, master volume or both ?  
    
    Also how do the power amps from the old Marshall heads when used in a 
    situation like this compare in quality and reliability to your standard 
    "On The Market" 50 watt tube head ?                   
    
    
    
    	I know there are a lot of questions here so a response to ANY of
    them will be greatly appreciated. Also a thanks in advance to all who 
    put in their favorite settings some notes back.  I love a lot of them.
    
    
    							Brian
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1842.1Mp1 - Yum-yum-yum...TCC::COOPERMIDI rack pukeTue May 29 1990 17:2523
This is good deal.  Not only do you get the 128 presets of the ADA, via MIDI,
but the crunch of an overdriven Marshall power section.  Good duty.

I tried a similar approach.  The only trouble I had was that I had a rack,
two 4x12's and two Marshall heads (I like that stereo stuff ya know).  I 
replaced the Marshalls with a SP1000 125 wpc and I'm really pleased with it.
I get that same overdriven power section sound without the bulk.  Now I have a 
three space rack and two 2x12's.  I sold one Marshall and still have
the other (a 2205) as a backup...So...  The thing that got me in 
your note is that you called this an "Ultra-Cheap" alternative.  I bought my
stereo power amp for about the same as what a Marshall 50watter has, and the
power amp is stereo, and way-louder.

BTW - I'd CRANK the Marshall volumes to ten and regulate with the ADA...
The ADA has a HOT signal and will drive that powerstage INSANE !

Talk about insane gain eh ?  Is the ADA's distortion ungodly or what ?!?!?!?
Yeeeeeooooow !  It's like kickin' a wounded kitty...Errr cat.  (Sorry John ;)
Now, wanna really blow your mind ?  Go get another Marshall half-stack...
Stereo is even more insane !

My only complaint about the MP1 is it IS NOT a vintage sounding rig.
It's too pretty sounding for that.  ;)
1842.2Oh and...TCC::COOPERMIDI rack pukeTue May 29 1990 17:262
Send me some of your home-brew presets...thats half the fun.

1842.3from a Marshall addictTAGART::SOMERVILLEFlonk your Dwoyl!Wed May 30 1990 05:2837
    A couple of years ago I messed about with my JCM 800 100w LEAD TOP
    in this way.
    
    Basically I was working out the circuit diagram of the preamp by 
    eyeballing the board. I managed this successfully and together with
    this and advice from a friend, fitted effects send/return sockets.
    
    There is a brown link wire which you just remove and one end is send
    and the other return. The sockets have to make the loop up again
    when nothing is plugged in.
    
    This set up is of limited use with modern effects loops as the output
    from the Marshall preamp is so high and the effects units outputs
    are usually too low to drive the power stage directly.
    
    It is possible that provision of line attenuators at the send and
    return together with a small very low noise preamp at the return
    could correct this but I don't think it would sound very good.
    
    However back to the point. Recently I purchased a JHS Rockbox,
    the Japanese copy of the Tom Scholtz Rockman.
    I got this for two thirds of the normal price because the guys
    at the shop said that this was too noisy through an amp front end.
    
    However I thought, how about directly throught the amp power stage
    controlled by the master volume only.
    
    It worked great! Definitely good enough to gig with. 
    
    I think a switching method to reconnect to the preamp input
    and reconnect the preamp to the main amp would be a good addition
    though.
    
    Hope this is the kind of input you were looking for.
    
    
    Robin_S.
1842.4ICS::BUCKLEYShe's breakin hearts in Heaven...Wed May 30 1990 11:425
    
    RE: .0
    
    
    BLASPHEMY!
1842.5TCC::COOPERMIDI rack pukeWed May 30 1990 11:538
Hum-bug.

What this dude gets is a MIDI front end to his marshall and a preamp
that doesn't sputter, gate, buzz, hum...

;)

jc (Who thinks twin marshall heads and the ADA in stereo would be BALLZY!)
1842.6exitCASPRO::KALINOWSKIWed May 30 1990 12:1934
    
    It may be Blaspheme but it sounds FANTASTIC...
    
    Coop you were so right.....The distortion is enough to kill ......
         I love Thew sounds I can get from the ADA. I was able to duplicate My
    old Head/Tube screamer combination in about 5 minutes. Well Almost.....It
    wasn't 1/10th as noisy as the old setup. Last Night I found a great
    setting for ....well whatever you want to use it for.... I'll jot it down
    and put it in the ADA note tomorrow.
    
    RE: .3
    
    As far as the Marshall preamp goes....when I plug in the back of the
    head I bypass the preamp section all together. However if I plug in the 
    front the preamp section is fully functional and still sounds just like
    the old Marshall. I assume this is the switch type mechanism you were
    refering to. If you are plugged into both front and back..(like I
    really would be anyway ;^) ..)  the head defaults to the back input and
    the front is shut down.
    
    	I know the problem you are talking about with the loss of signal
    after the post master effects loop. My friend had a head he had modified 
    with a loop and at greater volumes he loses gain terribily .  
    
    	You've gotta see what he had done. He had a friend of his (a mere
    junior at  U. Lowell studying E.E.) add an extra gain stage between the 
    the effects loop and the power section. This new stage came complete
    with a 12AX7 preamp tube and it's own master volume. That amp Kicks
    ass !!!!! I have never heard a ballsier dry head sound.  (One which I
    was quickly able to duplicate with the ADA....;^)....)
    	
         I'll stick that setting in when I find it....
    
    							Brian
1842.7TCC::COOPERMIDI rack pukeWed May 30 1990 12:3313
Glad to hear your happy with it.

IMHO, the one draw back of the ADA is when you want squeeky clean (with me
thats almost NEVER - Blasphemy! ;), the ADA is *SO* damn compressed there is
no dynamics left to it.

My work around for this is a preset that I posted.  It uses the clean tube 
stage and the compression is set ALMOST off.  That with the guitar volume 
down a little works out really well.  Dynamic and clean.

But bag that Mr. BooBoo, clean is for weenies who yell "your too loud!"  ;)

jc