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Topic: Nashville 112 Question |
Jason Putnam
From: Tennessee, USA
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Posted 19 Dec 2013 8:41 pm
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My nashville 112 sounds great when played at very low volume. When I turn it up with the master volume it sounds kind of distorted. I have installed the chips from Ken fox about a year ago. All seemed well but could that be causing the problem? Maybe I did something wrong? I've tested different cables, no delay pedal, and strait from steel to amp. My steel is a zum stage one. Any ideas?? Thanks.[/i] _________________ 1967 Emmons Bolt On, 1995 Mullen PRP 3x5,Nashville 112, JOYO Digital Delay, Goodrich Volume Pedal, Livesteel Strings |
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Bud Angelotti
From: Larryville, NJ, USA
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Posted 19 Dec 2013 9:01 pm
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Try using input 2, not 1. 2 has more headroom. _________________ Just 'cause I look stupid, don't mean I'm not. |
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Scott Duckworth
From: Etowah, TN Western Foothills of the Smokies
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Posted 20 Dec 2013 4:09 am
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Make sure your pre gain is not set higher than the master gain. _________________ Amateur Radio Operator NA4IT (Extra)
http://www.qsl.net/na4it
I may, in fact, be nuts. However, I am screwed onto the right bolt... Jesus! |
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Jack Stoner
From: Kansas City, MO
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Posted 20 Dec 2013 6:15 am
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The "return" jacks on the Pre EQ Patch and Post EQ Patch have an extra "normal through" contact and can get "dirty" and cause distortion (or no signal). Plug a guitar cord between the Pre EQ Patch send and the return and see what happens. If not the Pre EQ, do the same thing to the Post EQ and try it.
Finally the Preamp Out/Power Amp in has the same extra contact on the Power amp in Jack, plug the guitar cord between the Preamp Out and Power Amp in and see what happens.
There can also be internal problems. I haven't had any problems with any amp that I've modified for users with the OPA2134 Op amps, although that doesn't rule out a problem with one. |
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Jason Putnam
From: Tennessee, USA
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Posted 20 Dec 2013 6:45 am
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Thanks for the advice! I will try that. Its not like bad, heavy metal distortion, just enough that it doesn't sound good. Its weird, because I was playing it wednesday night for a few minutes and it was great. Turned it on Thursday night, distorted sound was there. Thats the way it is, comes and goes. Maybe its just me. _________________ 1967 Emmons Bolt On, 1995 Mullen PRP 3x5,Nashville 112, JOYO Digital Delay, Goodrich Volume Pedal, Livesteel Strings |
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Michael Hummel
From: Ottawa, Ontario, Canada
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Posted 20 Dec 2013 11:14 am
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Like Jack and the other experts have said, the fact that it comes and goes means that it is very likely one of those 'send/return' jacks. If unused for a while they can become rather temperamental.
Mike _________________ MSA Classic 5+4
Too many 6-strings and amps to list |
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Jason Putnam
From: Tennessee, USA
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Posted 23 Dec 2013 4:02 pm
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Ok so this is weird. If I play a single string it sounds great. Crystal clear. If I play two strings at the same time it sounds distorted. Doesn't matter which strings. So I plugged it in my practice crate guitar amp. Same thing. It's like when I play two notes they are fighting each other. I know that doesn't make sense but that's the only way I know to explain it? _________________ 1967 Emmons Bolt On, 1995 Mullen PRP 3x5,Nashville 112, JOYO Digital Delay, Goodrich Volume Pedal, Livesteel Strings |
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Lane Gray
From: Topeka, KS
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Posted 23 Dec 2013 6:31 pm
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Try turning your amp up and the volume pedal down. It sounds like you're overdriving the input.
Or (less likely) put a voltmeter across your mains. You might be low on power. _________________ 2 pedal steels, a lapStrat, and an 8-string Dobro (and 3 ukes)
More amps than guitars, and not many effects |
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Stephen Cowell
From: Round Rock, Texas, USA
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Posted 23 Dec 2013 6:43 pm
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Jason Putnam wrote: |
Ok so this is weird. If I play a single string it sounds great. Crystal clear. If I play two strings at the same time it sounds distorted. Doesn't matter which strings. So I plugged it in my practice crate guitar amp. Same thing. It's like when I play two notes they are fighting each other. I know that doesn't make sense but that's the only way I know to explain it? |
This is known as 'mixing', or intermodulation distortion ('intermod'). Your signal is hitting a non-linear section somewhere in there... i.e. 'clipping'.
http://en.wikipedia.org/wiki/Intermod
Clipping is normally caused by too 'hot' a level... so turn down! Start at the guitar, and see if you can tell which stage (preamp, tone controls, power amp, etc) is having the problem. For clean signals, it's best to have the Master volume control wide open and have the rest of the controls down... on some amps, the tone controls are active (like yours) so you can clip the bass, mid, or treble control if it's too high. Start with the tone controls straight up, the Master full on, and the Pre-gain barely up, with the guitar (or pedal) at 2/3, and see how that sounds.
And make sure the overdrive, if any, is turned off! _________________ Too much junk to list... always getting more. |
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