Pre Amp & Equalizer?

[Pete Hunter]

Does anyone know of a source for an inexpensive Pre-Amp & Equalizer to build into an acoustic guitar. I'm looking for one similar in looks to the ones that Ovation and others use and run off of a 9v battery. I think most of them have a 3
band equalizer and are inset into the side of the guitar. I have seen some really cheap $125.00 guitars with them installed so they can't be too expensive if a person can just find the source. I know that Stewart-McDoanld has Fishman brand them but they aren't cheap. Any help would be appreciated. Thanks

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Pete Hunter