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Topic: Nashville 400 - distorting a little? |
Burton Lee
From:
Denton, Texas, USA
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Posted 23 Mar 2005 7:11 am |
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I was playing with a band last night and I swear my nashville 400 is slightly overdriving when I pluck hard. It shouldn't do that, right? What would cause that?
Tanks!
Burton
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Mike Brown
From:
Meridian, Mississippi USA
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Posted 23 Mar 2005 7:24 am
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It's very hard to get a Nashville 400 to distort, but it is possible. If perhaps the PRE GAIN control was adjusted to a higher setting than the POST GAIN control, it could happen.
I recommend that you adjust the POST GAIN to a setting higher than "5" and the PRE GAIN to a setting lower than "5". Also, clean the gap of the Black Widow speaker as there may be some metal particles/trash in the gap that could cause this symptom.
This should work. Otherwise, there is a flexible patch panel on the rear of the amp that you can narrow the problem down to if you have another amplifier handy.
If you will contact me toll free in North America at 1-877-732-8391, ext. 1180, I will be glad to assist.
Mike Brown
Peavey Electronics Corporation |
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John Daugherty
From:
Rolla, Missouri, USA
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Posted 23 Mar 2005 8:26 am
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Burton, I have experienced that at times. I think it was due to low line voltage(AC line). It only happened a couple of times when all of the equipment had to share the same AC circuit. Normally my 400 sounds great.
I have also been fooled by a bad guitar cord. I carry a full set of spares so I can replace all my cords at one time when that happens. I then fix the bad one when I get home......JD |
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George McLellan
From:
Duluth, MN USA
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Posted 23 Mar 2005 10:11 am
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I know this sounds a little odd, but I found that if I go from my VP to DD3 to amp input it sounds a little distorted. If I then go straight from my VP to amp and use the effects loop there is no distortion at all. It took me a long time to wake up and try that way.
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SUAS U' PHIOB
Geo
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Ben Slaughter
From:
Madera, California
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Posted 23 Mar 2005 12:46 pm
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| I had a dirty gain pot that was giving me some funny noises. |
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Jim Bates
From:
Alvin, Texas, USA
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Posted 23 Mar 2005 2:22 pm
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I agree with Mike, keep the pre-gain as low as you can (2 to 3) and turn Post up to 12, if needed. With power off, rotate all the knobs back and forth several times to 'clean' the contact area. Same with the volume pedal pot. If you have low voltage, amp will get very hot and may start going into overload and sometimes thermal shutdown of components(this usually clears up when you get back to good voltage). Also, keep the junk out of the back of the amp. I had a music stand lamp in the back of mine that got wedged in around the speaker and caused all sort of noise.
Keep trying a little detective work and you will you isolate the casue.
Thanx,
Jim |
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Lee Baucum
From:
McAllen, Texas (Extreme South) The Final Frontier
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Posted 23 Mar 2005 3:05 pm
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If your amp is very old, it could also be a speaker issue. Read this older thread about cleaning out the small pieces of foam that can cause problems.
Click Here
Lee, from South Texas |
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Jerry Erickson
From:
Atlanta,IL 61723
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Posted 23 Mar 2005 5:41 pm
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| Sometimes the reverb circuit also. Do you use the reverb circuit in the amp? |
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Burton Lee
From:
Denton, Texas, USA
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Posted 24 Mar 2005 6:46 am
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Thanks for all the tips! I definitely had enough headroom with my post-gain. It was set to 8 or 9 and pre to 5.
It is an older nashville and it's been riding around with me for a while now. Could be debris. I'll have to check.
Could also have been that room's power. Havn't had a chance to try it at home again.
I was using reverb at 2 or 3.
I'll give it a look over and post the results.
Burton
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