View Full Version : L100 123A-3 123A-1 Compatability Question

09-15-2010, 09:26 PM

I have a set of L100's with 123A-1 woofers and one is blown so I bought a single 123A-3 off Ebay. Can I replace the one 123A-1 with the 123A-3 woofer? Is there a polarity issue? Does it hook-up the same at the 123A-1? I'm a newbie, any pointers are much obliged.

09-15-2010, 10:02 PM
No problem replacing -1 with -3. The polarity of the -3 woofer is reverse of the -1. You should do alright with one of each, but you might want to consider getting a second -3 to match up better.

09-16-2010, 09:54 AM
Thanks for the info since the polarity of the A-3 is reverse do i still hook the wires to the same spots as on the a-1?

09-16-2010, 11:41 AM
They're not identical acoustically but close enough Just wire the 123A-3 with the + and - wires opposite to how the 123A-1 is wired. So red to red on 123A-1 would be the same wiring as red to black on 123A-3.

09-16-2010, 12:21 PM
Green wire to black terminal
Black wire to red terminal

There seems to be some disagreement about the color of the wires. Are the wires going to the woofer green and black?

09-16-2010, 09:40 PM
Ok the original 123a-1 has the green wire to the red and black to black.So on the new 123a-3 i go green to black and black to red?

09-17-2010, 12:50 PM
That should do it!