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Gear / Technical Help => Battery Boxes, Preamps, Mixers, ADCs, and Processors => Topic started by: bush on May 24, 2004, 04:17:27 PM

Title: mod SBM-1 Gain knobs stuck??
Post by: bush on May 24, 2004, 04:17:27 PM

I bought a mod sbm-1 and the gain or whatever knobs seem to be stuck together.

They are at the same position, but i cannot adjust them independently...anyone ever run into this?

Am I doing it wrong??--classic newbie question :P

I have only used 1 other sbm-1 and the knobs turned separately...ie i could set the L channel to 6 and the R channel to 3 if I wanted.


HELP >:(

bush

Title: Re:mod SBM-1 Gain knobs stuck??
Post by: Tim on May 24, 2004, 04:30:33 PM

if you hold the inside knob in place can you turn the outside knob independently, and vice versa?

Title: Re:mod SBM-1 Gain knobs stuck??
Post by: marc0789 on May 24, 2004, 04:40:33 PM

somebody used that sucka as a gooball mixer. ;D

I think one of mine was a little tight, just needed some gentle nudging. honestly, this might be a blessing. I think I had one that was so loose, I had to make sure one didn't get knocked off proper level during a show.

Title: Re:mod SBM-1 Gain knobs stuck??
Post by: Chris K on May 24, 2004, 04:48:37 PM

i never change my left/right on the sbm-1...i let the pre-amp adjust the levels up front

the l/r gain on my sbm-1 is tight, but if you do what Tim says you should be ok

Title: Re:mod SBM-1 Gain knobs stuck??
Post by: bush on May 24, 2004, 05:07:30 PM

I can see snug...or a little tight, but this MF is stuck >:(

I tried to hold the inside and turn the outside and i tried to hold the outside and turn the inside...pretty damn hard with no luck.

Oh well, I'll try again tonite.

btw I need the sbm-1 for fine tuning, my pre has 6db steps

Title: Re:mod SBM-1 Gain knobs stuck??
Post by: thoman8r on May 24, 2004, 05:41:25 PM

how many dBs are the L/R channel off by?  If it's only a couple decibels, I'd just fix it in post-production and not worry about it.  That's the conclusion I came to after a few years of obsessively checking the levels to make sure they were perfect.

Dave

Title: Re:mod SBM-1 Gain knobs stuck??
Post by: bush on May 24, 2004, 05:50:43 PM

I feel ya Dave,   I should have some pretty closely matched akg's after I get them modded...it is just the excessively anal person in me that has to have everything perfect or close to it ;D

thanks for the help guys +T's to all

Title: Re:mod SBM-1 Gain knobs stuck??
Post by: nickgregory on May 24, 2004, 08:54:51 PM

my sbm1 was virtually brand new when I got it and they were tight as well....over the past 4 years, they have gotten looser as I have used them...

Title: Re:mod SBM-1 Gain knobs stuck??
Post by: bush on May 25, 2004, 10:11:08 AM

I took a small pair of channel locks and put some cloth around the inside knob ot hold it and tried to turn the outer knob as hard as I could without breaking anything and still no turny of thr knoby ???

I'll be calling Doug today I guess.

This sucks I just got this thing back from Doug after about 6 f--in weeks.