2 classic ATI controllers I acquired.
Posted: Wed Mar 13, 2019 5:19 am
Recently I acquired a Federal Signal MC, and along with that, the guts of two classic ATI controllers. The ATI controllers are from Baytown, Texas. From what I can tell, the controllers(or at least the amplifier sets) are 24V. They each have 4 400W amplifiers, 1 of them has a single amplifier labeled "HPSS 20009" and the other has 2 labeled the same way, the rest being unlabeled. The only difference I could find between the 2 different amps was a simple component which was of a different style. While searching old posts on ARS, I found a very similar looking amplifier from an old ebay listing that looked very similar on the front but was marked "HPSS 20036" and was 1600W. My controllers ran those funky DSA-look-alikes. I do not have the cabinet and I just have the amplifier set and the main board. Unfortunately, I do not know how to properly wire them up and hook them. I have 2 12V batteries that supply a steady 24.4V. However I already blew 2 fuses trying one of the main boards on 12V(I was told that I may as well) on the power port. No documentation for these sirens exist, thus no manuals, at least in hands of siren enthusiasts. ATI was of no help either, I simply got a response email from them with (HORRIBLE) grammar stating that they do not support old sirens anymore. So I am at a standstill with these controllers, not knowing how to power the main board.