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#1
03-12-2012, 12:34 PM
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amp cant handle transients?
I play my Martin OMCPA4 through a yamaha powered mixer. the EMX512SC. The Martin has the fishman analogg pickup system. when I hit achord or hard I get a slight delay. Its like the power amp cant handle the transient attack. No I dont have the delay effect on. I get a weird spikey sound with hard single notes too. Anyone else experience this? My action is pretty low and I am wondering if a bit of fret slap could cause it. I need to try it through a beefier power amp to see if it that has anything to do with it but I was wondering if anyone has experienced similar problems.
The Yamaha doesnt have pre gain so its difficult to discern if it is some kind of preamp distortion in the mixer 
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#2
03-12-2012, 01:06 PM
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I would be very surprised if the amp can't handle the transients, unless you are playing at ear splitting levels. My first thought would be that the battery in your onboard preamp might be dying (or bad; I've had a new battery be bad before). You might try replacing it even if you've done that recently.
Plugging into another amp would be a good idea, mainly to rule out a problem with the onboard preamp/pickup system. You could also try a different input on the mixer, just to make sure you don't have a bad channel. One last thought: have you tried a different cable? Bad cable's can cause lots of different issues.
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#3
03-12-2012, 01:11 PM
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Quote:
HE
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#4
03-12-2012, 02:05 PM
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Quote:
Thanks for input..And I will check battery
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#5
03-12-2012, 11:09 PM
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I am surprised no one has experienced anything like this
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#6
03-12-2012, 11:47 PM
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i would suspect the guitar before the amp.
have you conducted all of the above tests? did you run a mic thru that pa channel to test it? did you run the guitar thru a different amp, or, a different guitar thru the pa? good luck play music!
__________________
2014 Martin 00015M 2009 Martin 0015M 2008 Martin HD28 2007 Martin 000-18GE 2006 Taylor 712 2006 Fender Parlor GDP100 1978 Fender F65 1968 Gibson B25-12N Various Electrics
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#7
03-13-2012, 05:59 AM
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Quote:
- try a different channel on the mixer - different cable - different instrument or mic in that channel - I don't know what kind of pickup you have, but they usually need an outboard preamp, or a DI to match instrument output level and impedance to a line level input on a mixer. You can usually get away with not doing this, but not always... - try it with the compression circuit on the channel OFF Has your guitar sound ever been good while plugged into this mixer, or did this problem just mysteriously start one day? You really have to try the guitar on another system, or another guitar on your system and compare... Good luck with it. j
__________________
John Taylor 714ce
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#8
03-13-2012, 03:41 PM
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Thanks I still havent tried it through a different setup but will tonight.
I need to clarify. The guitar sounds great other than when I give it a strong attack. And I am wondering if somehow my low action is contributing. I have tried other channels, with and without compression, I also have tried different cables. Thanks so much to everyone for your input
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