I've got a Spector Legend 4 and am pretty happy with it. When I try to use my Line 6 Relay G10s wireless with it though, I get an annoying high pitch out of it as a result of the preamp. I've tried the adapter workarounds with no luck so was thinking about trying to bypass the preamp to see if it fixes the issue. The model has Bartolini pickups and not EMGs. If it solves the issue, I would consider removing the preamp and converting to fully passive but was curious if anyone had any ideas for a quick bypass mod that I could use to troubleshoot/make a decision based on. TYIA!