Vox DA5 lineout modification - speaker bypass

[mjon]

Thanks for your help on this

[CMT]

Hi I just signed up!!! I have the same issue different critter. I have a line 6 spider 3 75w... Lol it is my first attempt at a modeling amp. I dropped an EVM 12L in it and it sounds pretty good.
I need to have a preamp out to my Acoustic 150 and my Peavey board or it's not happening.
I'm 64 years old, retired banking equipment tech but my knowledge of audio circuits on a board level is seriously lacking.
I have found the schematic but am not sure if the same jumper configuration will work..