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Tube Tech CL 1B...any guru's here
Old 11th May 2006
  #1
Lives for gear
 
Kyle Ashley's Avatar
 
🎧 15 years
Tube Tech CL 1B...any guru's here

I have a CL 1B made in August 05. Tubes replaced with NOS Mullards. Setting up for a session tonight, I did a mic/level check and upon playback noticed a rattling/static sound behind the vocal.

Switched tubes out, somewhat less rattling sound, but still present. Patched mic pre direct, no rattling....tried other comps.....no rattling.

Any CL 1B owners ever notice something like this?

Also, what is the function of the internal gain pot on the circuit board? Input gain?
Old 11th May 2006
  #2
Gear Head
 
🎧 15 years
I have two of them, one older, one a few months old, and never heard any rattling, and no engineer ever complained about it.

Peter
Old 11th May 2006 | Show parent
  #3
Gear Guru
 
rickrock305's Avatar
 
🎧 15 years
its funny, i have a CL1B and i swear i hear a little bit of distortion, very slight. So i changed out the tubes (mullards), and i'm pretty sure its gone. But my mind plays tricks with me. Its happened with several mics at two different studios, so it seems the CL1B is the weak link. As long as the gurus are going to be answering CL1B questions, i figured i would ask. What might cause this?
Old 11th May 2006 | Show parent
  #4
Lives for gear
 
Kyle Ashley's Avatar
 
🎧 15 years
I don't it's microphonics as I've now tried 3 sets of tubes.

I think I'll post 2 audio clips later and see if it's audible to anyone else. Thanks for the posts
Old 11th May 2006 | Show parent
  #5
Lives for gear
 
Kyle Ashley's Avatar
 
🎧 15 years
here are a couple of clips.

they're basic "test 1....2...." things.

the first one was through the CL1B. If you listen behind the voice you can hear the rattling/static issue.

the second clip is through the mic pre only...much cleaner.

anyone else hear this?
Attached Files

CL1B RATTLE.mp3 (49.0 KB, 212 views)

TEST NO COMP.mp3 (53.9 KB, 168 views)

Old 22nd June 2007 | Show parent
  #6
Lives for gear
 
Mike Jasper's Avatar
 
1 Review written
🎧 15 years
There are no Tube Tech gurus here. Try this link:http://recforums.prosoundweb.com/

Jasper
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