BossAreaForum

The only real way to do pedals in parallel is to go through a buffer then have a splitter cable on on the output of the buffer goign to the parallel pedals, and a small line mixer on the output of the parallel pedals to mix the outputs together.

Welcome!

If you don't have the manual...
https://www.boss.info/ca/support/by_pro ... s_manuals/

If you are OK reading schematics, this schematic is for the 4558 version. Which version do you have?

https://www.hobby-hour.com/electronics/ ... rdrive.php

This is often caused by the power supply. What are you using to power it? Does it make the noise with a new battery?

Errr..... ummmm..... WTF?

Wow! Thank you.

These notes are OPINIONS. Use your judgement before attempting any adjustments. Everywhere that says "should be OK to be adjusted by ear"... you will likely need a scope to get it back to factory setting. So please be sure this is really what you want to do. Take care messing with vintage pedals. In...

PS-2 typo... VR4 and VR5

More to follow

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