Unitrol 80K wiring

Hi all,

Not sure if this falls under vintage equipment or not, but I'm running into some issues whilst trying to wire up my Unitrol 80k amplifier. I do not have a factory controller but from what I could gather, all you needed were momentary switches, a power source (obviously) and an on/off button. I'm going for Option 2 (siren tones WAIL/YELP in the installation manual) but I don't know what wire goes where, even though the numbers of each are on the back of the amp. I've tried all sorts of wiring combinations and connections but I'm still getting nothing. It does power on. Currently have POS, NEG, and AIR HORN wired up - I've stripped the WAIL and YELP cables, should these be connected to "Audio Input"?

I feel like I'm making this way more complicated than it should be...

 

[167]

Power, ground, and trigger wires to 12V is all you should have to do.

 

[shues]

The Audio Input (pin 1 and pin 5) terminals are used for a PA microphone:

Post in thread 'Help Wiring a PA mic into a Unitrol 80K for unmarked installation'

Mar 8, 2021

This should be the correct connection for a low impedance (e.g., carbon or amplified) mic:

• MtnMan

• 

 

[Cliffordsnr]

You are definitely making it harder than it needs to be, don't touch that 'Audio Input' for the siren tones! On the Unitrol 80K, the numbered pins on the back are looking for a +12V trigger, but there is a specific 'common' pin that acts as the gatekeeper.