370 Large Box (1590DD) Preamp
 (an actual Acoustic 370 preamp in a box)
The Acoustic 370 is by far my favorite Acoustic Control Corp bass amp ever made and I still use them to this day. I used the  original Acoustic schematic to build this pedal and it runs on 32V just like the original but only requires a standard 9V power supply (using an internal charge pump). 

This pedal has TONS of output.  I even used vintage Acoustic 2N2484 & 2N4248 transistors in it. It was quite a challenge but after owning 7 original 370's, I'm proud to say that this pedal captures the exact tone of the original preamp. I have built a total of only 3 of the large box (1590DD) versions and due it being impossible to locate the small 6H inductors for the preamp section (they've been discontinued for decades), I am only going to offer ONE more of these builds for sale. I had to pay $120 for the inductors that work & sound just like the original (taken from a vintage White Instruments 31 band studio equalizer). There are a total of 8 PCBs that I designed and etched myself inside of this pedal (1 preamp PCB, 1 graphic eq PCB, 1 charge pump PCB, 1 five slider pot PCB, 1 inductor PCB, 1 relay bypass PCB, 1 Direct out and 1 Clean Booster PCB for the direct out). This one uses a five gyrator circuit for the graphic eq tuned to the original amp's frequencies. It has an epoxy coated top panel for durability.

This is an extremely complicated and time consuming build so it's not cheap, and costs more than buying an original used 370 amp, but if you love these amps as much as I do, and want a portable, lightweight pedal version with a direct out that will drive a power amp, then I think that you'll find it more than worth it. When I showed it to its original designer Russ Allee he loved it! As of today there are only two people on the planet that own one (one of my customers bought TWO!)
(click the pictures below for a larger image)
My original 1970's Acoustic 370 amplifier of which this pedal was designed from
including shipping in the ContUSA 
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