ADA Depot - A Forum To Support Users of ADA Amplification Gear
ADA Preamps => MP-1 Classic => Topic started by: Griphook on July 09, 2017, 11:44:50 AM
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Heyho Guys,
it's been a while since I last posted sth.
I did not use my Classic really much, because the MP2 fits better in our Band context.
Recently I gave my Home-MP1 to our second guitarist, so the Classic came back to live.
The problem now is:
I have to put OD1 and OD2 to 10.0 to get as near as the distortion of the MP-1 at OD1=3 and OD2=7. This is at Distortion-Voicing
At Brown Voicing I only get a little bit of crunch, even with both ODs set to 10.
The Clean Tube does not even crack up really on the same settings.
Also I found out, that the sound is dying pretty fast.
Maybe some of you experienced similar issues?
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Does it do this on the SS voicing too?
If not, more than likely, you need some new bottles in it.
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I think Harley is right, try some new tubes first.
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Thank you
I Got no New tubes, but Ich recently Got another MP-1, which sounds great btw.
So I just swapped the tubes of the MP-1 and the Classic. The the MP-1 still sounds great and theProblem still persists, but it Got better. It seems, that the Noise Gate Kicks in, but it is turned off definetly.
I Dont get A Sound off the Clean Tube Voicing with OD1 and 2 Set to about 6. The Sound I get, when it comes out, sounds more like A fart...
No obvious Problems with S.S.
Sorry about All the capital Letters . My Smartphone thinks, This is german :facepalm:
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It's beginning to sound more serious than just new tubes.
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Sorry about All the capital Letters . My Smartphone thinks, This is german :facepalm:
Hahahahhaahaha.... that's funny!
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Sorry about All the capital Letters . My Smartphone thinks, This is german :facepalm:
Hahahahhaahaha.... that's funny!
I've hit the language button by accident many times sending texts too. It's still funny :lol:
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I'm starting to the think it's a bad R151 resistor.
Check this topic http://adadepot.com/index.php?topic=1879.0
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Thanks, I will check that asap ;)
The Video posted sounds exactly like mine..
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I got about 2000 reistors laying around, but 180kOhm ain't one...
Hope i get one in the next days. I hope 1/4W 5% Tolerance is okay?
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1/4W 5% is okay but try to get a metal film, these are more resistant to high voltage then carbon resistors.
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Alright, thanks :thumb-up:
I ordered A bunch of resistors, the should arrive on monday.
In the meantime I desoldered R151 and measured IT around 1,4 MOhms. :facepalm: just slightly more than 180k ::)
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Well seems you found the problem. :thumb-up:
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Works like a charm again.
Thank you! :thumb-up:
Now I only have to get the 499k Ohms Resistor.