I have a K3 that's been nearly unusable since I purchased it due to
some serious noise/hum. Where would one start in
troubleshooting this thing? I noticed the K3 (along
with my SCI Sixtrak, also noisy!) doesn't use a wallwart like some more
modern synths.. could the cause be power-supply related or........?<br>
<br>
JON<br>
<br>