Question about Fishman PRO EQ Platinum Bass Preamp Amplifier

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When I plug it into my amp there is a staticy

I'm bidding on a used Martin Acoustic equipped with the Fishman preamp feature. The Seller says "When I plug it into my amp there is a staticy sound coming from the built-in pick up"
Repairable?

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Yes there probably is a dry jopint on the wiring or the jack input isnt tight enough also the battery connector could have a dry solder or looose connection I would go for it if the price is low and just spend a few bob to solder it or check the connections.Good Luck

Posted on Sep 29, 2009

Testimonial: "Sounds like great guideance, I'll try the recommended repair/ checkout when it arrives."

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Posted on Jan 02, 2017

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What's your problem?I have two Fishman amps.The older Loudbox 100 single channel and a Loudbox mini. I am trying to find the service manual for the older fishman as I have a fault with it and the


Fishman iis you best bet http://www.fishman.com

You can download the user manuals, they do have a block diagram, but the scan is pretty bad.

It may end up the person looking at it is going to need to rely upon their general knowledge.

My own suggestion is to pull the chassis out so you can work on it while powering it. And then work your way through the amp with either a signal source plugged in at the input, and with high impedance headphones with test lead ends, go through each audio stage carefully. until the fault is isolated. If it is not caps or the rectifiers in the power supply, faulty ground connections to chassis or faceplate, a faulty 4558 is most probable. The headphone approach is the fastest way to address this last one. If a different series of preamp chip is used, a good source for the IC datasheets in general is Digikey http://www.digikey.com and parts too.

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1 Answer

Low volume from Fishman Loudbox Mini mic input, using brand new XLR cable and dynamic mic. Mic works just fine on instrument input using a Hi-Z cable so problem is not mik


I have seen defective XLR cables so check it with an ohmmeter. It is possible the mic input preamp has been damaged. If that is the case, the unit will have to be repaired.

Aug 31, 2011 | Fishman Loudbox Mini Acoustic Amplifier...

1 Answer

Very low volume from mic input even with Gain and Master turned full on


You haven't told us what type mic you are using. If you are trying to use a condensr mic with this, you will need a preamp that supplies Phantom power to the mic. You haven't told us what cable you are using. Do check that you aren't using a condenser mic as there will be virtually no volume.

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1 Answer

When I connect the onboard Aura via USB to my computer and open the Aura imaging software, it doesn't recognize my device and a fishman product..... HELP!


You could call Martin Guitars at 1-888-433-9177, or visit their website:
http://www.martinguitar.com/contact

And/or try Fishman:
http://www.fishman.com/contact
Although they don't have a recognizable toll free number, they do have an online form.

If you have access to support for your computer, you could try that, instead.

Good luck, and I hope this helps!

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1 Answer

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You could try boosting the bass and reducing the highs on the EQ setting, however there MAY be a probllem with the pickup, not the preamp.

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I have a Fishman pre-amp mod MKAB Acoustic Base Optimized in a Michael Kelly Dragonfly 5FL TBK.. as soon as the plug is pushed in the jack, the battery lite on the amp flashes for an instant , then goes...


Most acoustic/electric pre-amp's red light comes on when the battery is low & ready to die. The red light flashes when you put the jack in because the battery light takes a fraction of a second to proccess. If the red light flashes off & on when you push on the pre-amp, it is probably because you are causing the battery connector to short or disconnect giving the pre-amp low voltage so the red light comnes on.

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1 Answer

Ground hum from Martin OOCXAE having Fishman preamp...


do you have active or passive pick-ups? if active, pop in a new 9volt battery, that might do it, it worked for me. if that doesnt work, go to guitar center or somewhere and get a heavier insulated, better constructed cord. sonds like you might be completing the ground from interference if its not your battery. hope this helps

Jan 23, 2010 | Fishman PRO EQ Platinum Bass Preamp...

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