If I'm only going to be driving a single sub though, why would I want a 2 channel amp? Wouldn't a mono amp be better suited?

Or are you recommending this in case I want to upgrade later on? (and then could use the 2 channel amp elsewhere)

 

Nevermind, I reread the thread again and I now understand where you're coming from.

If I use a single channel amp but am using it for one 4 ohm speaker, I'm not using the amp to it's full potential, since I would be better off driving that one channel amp at 2ohms. So by getting a 2 channel amp, I could set it up as 4 ohms mono and make more power.

At the same time, wouldn't I be putting less stress on the amp if I had a one channel amp and was running it at 4ohms. In my previous system I had a nice Orion 222sx amp and was running a pair of 6.5" subs off it, but because we were running it at 2ohms mono (I think) the amp was being pushed too hard and would often shut down if I had the volume up too high for too long. It was quite annoying.

So even if I'm not using a mono amp to it's full potential, it might be the better choice for me based on that.

 

Yes but to get 350 or 400Wrms at 4 ohm out of a mono block it would have to be a 750-800wrms mono block which maybe be more expensive then a 2 channel to make the same power. Unless they are on sale

 

ok i like this one for just power
http://cgi.ebay.com/Phoenix-Gold-Tantrum-1200-1-Pristeen-Condition_W0QQitemZ270088470106QQihZ017QQcategoryZ 18797QQrdZ1QQcmdZViewItem
over kill but