May 19th, 2012, 09:49 AM
Hello, I recently acquired a Greta 2watt amplifier. I have an old 12" green back Celestion speacker mounted into a cabinet that I want to run off the Greta. Only problem, there is no wiring in the cabinet, I need to install this myself. The Greta specs require 8ohms.
I wanted to ask for help with this project, maybe there are some basic instructions or a theard somewhere here? I've messed around with a soldering iron with minimal success in the past.....but my eclectically knowledge is weak.
May 19th, 2012, 10:14 AM
If you can get your hands on a multi meter, you should test the ohm rating of the Celestion speaker. It should read between 6-8 ohms when measured across the +/- terminals on the speaker in the cab. If so, build a 2 wire speaker cable. One end of each to the +/- speaker terminals. Get a matching male phone plug to plug into the Greta. I assume it is a 1/4" mono plug. Solder the speaker wires in place in the plug. 1 wire to the center terminal, the other to the ground in side the plug. It's pretty easy to do. We could post some photos if needed. When running 1 speaker, I don't think it makes any difference on which wire goes to tip or ground in the plug, or +/- on the speaker end either.
That's sorta the quick and dirty way. If you want, you could mount a jack in the cab, and use a 1\4 guitar cable from the head to the cab. This is how most are wired. Kinda like this inside:
May 21st, 2012, 07:12 AM
Thanks keithb7, it looks very doable. I'm going for it!