Update 2: I received a replacement ppi amp yesterday (thank god for the $10 warranty I bought). and I will be receiving my new hu today (thank god again for the $10 warranty I bought). what I noticed was that one of the channels on my 2ch amp is not working , old amp with no warranty(tested it with the bad hu, that might be the issue) Once I install the new hu and in deed on channel is bad, can I connect two speakers to one channel? They are 4ohm speakers rated at 85 watts rms. The amp is rated 220 watts rms @ 2ohms. Can I wire the two speakers as shown on the picture. If I want to give each speaker 80 watts rms would I use the following to set my gains using the dmm ( 80watts x 2speakers=160 x 2ohms=320 = sqrt(320)= 17.8 v
now with what happened should I change the rca or can I use the same ones?