Sorry 'bout not responding earlier, but my internet connection has been down for the last two days... the shaking has just about stopped

I am planing on hooking up one 10" sub to channel three, and one 10" sub to channel four on my amp. I currently only use the first 2 channels, channel 1 is the front pair, channel 2 is the back pair. It is warnings like "don't bring the Ohm load too low" that concern me. Basically because I'm not really sure what my Ohm load is at right now.

Shouldn't be a problem then. Most likely your amp can handle a load down to 2 Ohm per channel. You need to check your 10" subs as to what impedance (ohm) they are per coils and if they're single or dual voice coil subs.

If they're single voice coils there shouldn't be any trouble at all - haven't heard about any 1 Ohm SVC subs...

If they're DVC, then you need to decide if you want to connect the 2 coils in series (doubles the impedance, compared to the impedance of a single coil) or in parallell (halves the impedance).

If you post exactly which subs and/or what configuration they are, I'll be happy to show how to wire them up. Also the same for the amp, so we can be sure of what it can/can't do...

Now, will the subs be in a common airspace box? Or are they separated by a divider?
This'll also affect how to best wire the subs.

In general, if possible - considering their config and the amps capabilities - I would join the 2 subs together (electrically) and connect them to channel 3 & 4 in bridged mode. That way they will see, and play, the exact same signal.

The Ohm load stuff gets simplified alot when you're not doing things like tri-mode...

As to filters, I'd either get fmods /that Tony linked above) or a cheap simple 2 channel crossover - something like this. This one is a bit better.

/Michael