Author Topic: US-20 A/B BOX with USB TO PC = DISTORTION!!!  (Read 512 times)

0 Members and 1 Guest are viewing this topic.

Offline rando

US-20 A/B BOX with USB TO PC = DISTORTION!!!
« on: September 10, 2009, 12:57:41 PM »
Greetings.  Anyone else having this problem?  I have a Roland US 20 A/B box with an Axon MK 2 Guitar synth (13 pin) and Roland VG 99 (13 pin) running from my RC 300 pedal board and into my PC through the USB cable (comes with the VG) and I have soooo much distortion.
If I run JUST the VG 99 into the RC 300 through USB to PC, no problem.
I've run the VG in different modes, sysx etc. but the two don't appear to be compatable although both share a 13 pin connection.
Thoughts anyone?

Thanks

« Last Edit: April 29, 2015, 06:35:01 PM by admsustainiac »

Offline Elantric

Re: US-20 A/B BOX with USB TO PC = DISTORTION!!!
« Reply #1 on: March 24, 2016, 03:25:58 PM »
Power Supply Ground loop is your issue

Solve it by using the steps outlined on both threads here:

http://www.vguitarforums.com/smf/index.php?topic=2078.0

http://www.vguitarforums.com/smf/index.php?topic=367.0