Gallien Kreuger Official Club Part 7 - Page 42

B-string · #**821** 02-03-2013, 02:19 PM

No one is 100%

But I do my best

kleinenenten · #**822** 02-03-2013, 02:22 PM

The "fuzz" lessens when I reduce the bass going into the cab via my active electronics. Does that tell you anything?

And speaking of active electronics, I'm gonna switch out my battery, just to make sure...

B-string · #**823** 02-03-2013, 02:31 PM

Quote:

Originally Posted by kleinenenten

The "fuzz" lessens when I reduce the bass going into the cab via my active electronics. Does that tell you anything?

And speaking of active electronics, I'm gonna switch out my battery, just to make sure...

+1 good idea! You could be driving the first stage (on the amp) too hard with bass boost from active electronics if a new battery does not help.
The input volume or gain control on G-K amps are AFTER the first gain stage so you can overload the first stage (tube amp are the same way).

kleinenenten · #**824** 02-03-2013, 02:40 PM

Quote:

Originally Posted by B-string

+1 good idea! You could be driving the first stage (on the amp) too hard with bass boost from active electronics if a new battery does not help.
The input volume or gain control on G-K amps are AFTER the first gain stage so you can overload the first stage (tube amp are the same way).

So reduce the bass on my instrument, and add it back via EQ on the amp to compensate?

EDIT: Tried it, didn't hurt, didn't help.

B-string · #**825** 02-03-2013, 02:52 PM

Quote:

Originally Posted by kleinenenten

So reduce the bass on my instrument, and add it back via EQ on the amp to compensate?

EDIT: Tried it, didn't hurt, didn't help.

One last thing before will call the cab guilty, remove the amp head from the top of the cab (to the side of the cab on a pillow or chair) and play again. If it still does it the cab is the problem, if it does not do it the effects return jack's internal contacts could be corroded.

Cney · #**826** 02-03-2013, 03:05 PM

there's a -10db pad on the input on your GK backline...

Is that on? because with your active elecronics you have to have tht activated. i know it's a no brainer but maybe in your haste to play the thing you forgot

kleinenenten · #**827** 02-03-2013, 03:18 PM

Tried the pad, moved the head, no dice. Could it be the cab's not rated for low B? B is about 30hz, amd this cab only specs to 50.

B-string · #**828** 02-03-2013, 03:36 PM

Quote:

Originally Posted by kleinenenten

Tried the pad, moved the head, no dice. Could it be the cab's not rated for low B? B is about 30hz, amd this cab only specs to 50.

If that was true it would not be a "fuzz" sound it would be a sharp clack or quick "fut". Most of the power from an electric bass is from the harmonics not the fundamental, 50Hz is more than good for a low B.

SunnBass · #**829** 02-03-2013, 03:49 PM

Could be that the input stage is messed up. I purchased a floor model 700RB II and it was kind of farting/fuzzing on certain low notes. It actually blew a bunch of speakers. Came to find out that the input stage was kinda burnt up and the note waves had these weird peaks on them when hooked up to an oscilloscope.

Question to kleinenenten:
Do your best to describe the sound, is it "noooote...frrrp"...then clean sustain?

Cney · #**830** 02-03-2013, 03:51 PM

I have the backline 600 and the blx. no farting sound here.
i have had the thing apart though.

Maybe your pcb that has the four speakers in parallel and that connects to the input is rattling against the wood. that thing is loose in there.

**gnarkill** · #**831** 02-03-2013, 04:01 PM

Does anybody here have an answer to this? 2001rb head. I bought a 25' monster MIDI/ din cable whichever you prefer to call it, to use instead of the 15' that comes included for the footswitch. None of the functions are working properly with it. Stock cable works fine. Is there a problem with that much length, does GK use a specialized MIDI cable? Or did I just get a junk cable? I bought it new from MF.

B-string · #**832** 02-03-2013, 04:27 PM

5 pin Midi cables only use three wires http://www.colomar.com/Shavano/midi_cable.html.
You need all 5 conductors for the foot switch on the 2001RB.

I would suggest making your own, ends are available from many sources and I used cable from http://www.allelectronics.com/ for a custom foot switch cable for a customer's JCM.

kleinenenten · #**833** 02-03-2013, 04:34 PM

Quote:

Originally Posted by SunnBass

Could be that the input stage is messed up. I purchased a floor model 700RB II and it was kind of farting/fuzzing on certain low notes. It actually blew a bunch of speakers. Came to find out that the input stage was kinda burnt up and the note waves had these weird peaks on them when hooked up to an oscilloscope.

Question to kleinenenten:
Do your best to describe the sound, is it "noooote...frrrp"...then clean sustain?

It sounds like I'm using a fuzz effect on the low notes, but it stops automatically after 1-2 seconds, leaving a clean sounding note afterwards.

**gnarkill** · #**834** 02-03-2013, 07:02 PM

Quote:

Originally Posted by B-string

5 pin Midi cables only use three wires http://www.colomar.com/Shavano/midi_cable.html.
You need all 5 conductors for the foot switch on the 2001RB.

I would suggest making your own, ends are available from many sources and I used cable from http://www.allelectronics.com/ for a custom foot switch cable for a customer's JCM.

Thank you, they had cable and neutrik ends. Parts are ordered

B-string · #**835** 02-03-2013, 07:06 PM

Quote:

Originally Posted by gnarkill

Thank you, they had cable and neutrik ends. Parts are ordered

No problem!

**gnarkill** · #**836** 02-03-2013, 07:29 PM

I like this group. Everybody seems nice and helpful. I've got a Neo 410 ordered from rmc audio with another on hold till I get my taxes back. Website I saw someone mention a while back on here. Good company, I'm saving $150 each cab. They won't be here til march but saving $300 total is worth it. Ill post a pic when they show up. And get a number too.

2milehighspike · #**837** 02-03-2013, 07:29 PM

Quote:

Originally Posted by B-string

No one is 100%

But I do my best

Oh now, don't be so modest

SunnBass · #**838** 02-03-2013, 09:12 PM

Quote:

Originally Posted by kleinenenten

It sounds like I'm using a fuzz effect on the low notes, but it stops automatically after 1-2 seconds, leaving a clean sounding note afterwards.

Sorry but you may be having the same problem I did. You bought it used right? It could be that the previous owner damaged the input stage somehow, maybe too much up front for the amp to handle (active bass without proper EQ'ing, some sort of signal boost, etc...) If I were you I'd find a licensed GK tech, take it to him/her and tell them whats happening (mention that it might be the input stage). I however wouldn't play it anymore, when mine had it's issues it separated the voice coil from the cone on about $400 worth of speakers. Good luck, keep us posted.

**Chef** · #**839** 02-03-2013, 09:16 PM

SunnBass...Columbia, MO...
Do I know you?

kleinenenten · #**840** 02-03-2013, 11:44 PM

Quote:

Originally Posted by SunnBass

Sorry but you may be having the same problem I did. You bought it used right? It could be that the previous owner damaged the input stage somehow, maybe too much up front for the amp to handle (active bass without proper EQ'ing, some sort of signal boost, etc...) If I were you I'd find a licensed GK tech, take it to him/her and tell them whats happening (mention that it might be the input stage). I however wouldn't play it anymore, when mine had it's issues it separated the voice coil from the cone on about $400 worth of speakers. Good luck, keep us posted.

I'm very briefly going to try it on another cab tomorrow. If/when I hear that fuzz noise, it'll confirm that it's the cab or not. I played the head before I bought it without issue, so I thought it might be a cab problem. Also, was that an expensive repair? I could return it to GC as defective and get my money back. They seem to have a few on their site for the same price, and one here on CL for cheap. Might test it out there on a cab or two as well...