I recently purchased a pair of (identical) third party subwoofers, intending to pair them up with my Axiom M22ti fronts.

Denon USA's home theater FAQ tells me that if I tell my AVR-3802 that I have no subwoofer, and set only my left and right mains to "large", that all bass below the receiver's crossover setting is sent to the mains, from all channels including the .1 LFE. (See http://www.usa.denon.com/support/faqs_ht.asp#Q1.)

After I make these settings, it seems that I have two options:
1. Hook up each sub and M22ti using speaker-level connections, and turn the sub's crossover to highest setting (bypass).
2. Use the RCA connection from the L/R pre-amp outs to each sub. Set the crossover on the subs to somewhere around 60Hz, the bottom end of output from the M22ti.

Option 2 would obviously introduce some opportunity for either a hole or an undesirably strong response near the crossover frequency.

But would there be any advantages to option 2? Is there any reason I should consider it over using the subs' crossovers via speaker-level inputs?

Thanks,

Joe