not 20.3 at all, surround sound naming scheme has nothing to do with number of speakers, it is the channel count. for example: 5.1 means there are 6 individual channels of audio...C,FR,FL,RL,RR, and Sub. Regardless of hoqw many speakers you use, they will be outputting one of those 6 channels.
The best I could do is a "10.1" and that would put such a strain on my amp I would never try it. If you have more than 1 speaker hooked up to 1 output on the amp, you're probably overloading it.
The best I could do is a "10.1" and that would put such a strain on my amp I would never try it. If you have more than 1 speaker hooked up to 1 output on the amp, you're probably overloading it.
You would have to find out what impedance your amplifier can take them try to wire the speakers in parallel or series or a combination to get the required impedance. Here is a good article explaining it all : http://www.marktaw.com/recording/Electronics/OhmsAmpsandSpeakers.html