Usually say the left channel would go into a DSP, or an old skool active crossover to get woofer, midrange and tweeter bands out as separate channels.. and maybe a sub woofer channel.So I did as you suggested, the sound was clear, not loud, but clear, so I think we are on the right track. Can you give me advice on the best way to get that one pair of Audio outs on the HU to run 4 speakers and a small sub through an amp or amps?
Same story on the right channel.
The woofers and tweeters go into a 4 channel amp for a 2-way.
In a 3-way a 6 channel amp,services the woofer, midrange and tweeter.
The subwoofers are often goto a mono amp.
But there a few ways to skin a cat.
If you have passive crossovers then a two channel amp is used.