need help trying to make s harness
 

Don't know the model. Has 6 pins, a space. Then 2 pins. Currently wired based on a40 wiring diagram. Plays muffled high lvl thru what I wired as the : doesn't play as bass. No wiring harness so I'm trying to make one.it appears to be an older model. I can't upload photo it seems but one is available thru text or email.

Re: need help trying to make s harness
 

Posting a picture will always be helpful with identifying the older model Tubes. What pins are you connecting to for the High Level Inputs? And where do you have the ground connected?

What size speakers are you connecting the Tube to for the signal source?