Permanwntly turn off sound, how???

[jimdavis88]

I'm running two Bachmann and one Walther's locomotives using  an NCE Procab. I know I can disable the sound using #8, but that is only temporary. How can I disable the sound permanently, without it affecting anything else?  My Lionel locomotive O gauge had a simple switch and volume control, so easy. Also, how to control the volume "permanently."

[rich1998]

Unsolder one speaker wire. Put shrink on the wire.

Rich

[James in FL]

No need to heat the iron up.
Just cut one.

[prr22]

Change the master volume CV to zero.  You can find which CV this is by searching google for your model.