Moog SlayerBy Atom Smasher Filter Mod for Korg EX-800 and Poly-800
aka: The Tweeter Eater Modification; The Bass Bomb Modification
|Also see the HAWK-800 mod, and keep an eye out for the aTomaHawk-800.|
Samples, Reviews, Pictures, Tech Notes
It all started when my comrade, Tom, asked me to do the original filter mod to his EX-800.
I gave him back his synth, and he said "Atom, it does this," while holding his fingers about an inch apart. He continued, "make it do this," now holding his hands about a foot apart. Back to the bench.....
This time, when I took it back to him, he plugged it in, and said "Holy shit! It's like this!!!", grinning, and holding his hands as far apart as he could get them.
At the time I wasn't that big a fan of the Poly-800 series... but after doing this mod, I picked up an EX-800 for myself (pictured here).
This modification very nicely compliments the FM-800 modification for a total of 3 knobs full of fun.
If anyone wants to send me samples of their modded synth, maybe I'll post it here.
This modification is Copyright Atom Smasher and published under a Picture, Sample, Lunch-Ware License: If you perform this modification send me an email with pictures, samples and your location. If I visit where you live or you visit where I live (currently Wellington NZ) you owe me lunch.
The ground (black wire) and +V (red wire & resistor) are wired up here
There is a diode just next to where the power jack is. Wire up the 470-510 Ohm resistor to the cathode. Make sure there is heat-shrink or tape over the resistor, or else it might short out against the power-jack, or something. This picture shows it without the heat-shrink, for clarity. Wire up the ground connection to the big pad, just next to the power jack and connector "CN9".
View shows the knobs, but they can be mounted more towards either side, as long as they don't interfere with the display/button board.
Close up of knobs shows wiring.
Note how the holes here line up with the holes in the diagram.
Don't forget the heat-shrink!! Or sparks will fly!!
Even if you don't do the filter mod, this is a cool mod by itself.
The holes towards the left are the original mounting holes. The pot is moved away from the front panel (towards the right, in this picture) into the new holes, and wired-up like a broken jaw to the connector terminals.