I've uploaded a sample of the Model 12 Mark 2 filter enhancement to the ear-group.NET site. Go here: http://www.ear-group.net/model_12.html Scroll down to Sound Samples, click on the two links listed in the section labeled; Q LOW - Q HIGH SAMPLES*** A description of the patch and process can be found directly underneath. enjoy.
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Model 12 Mark II sound samples
2006-09-09 by (i think you can figure that out)