Stereo Bass with no high level inputs on subs

[Jonnyozero3]

I'm curious if I've thought of all the ways to hook up a pair of subs as a stereo L/R pair, but doing so without using high level inputs and outputs on the subs (as there aren't any on my UFW-10).

Here's what I've come up with:

1) Stereo L/R sub outputs after bass management in the receiver. Not a likely scenario, I don't think I've seen it except maybe in some uber expensive AVRs.

2) Y-Split L/R channels from AVR binding posts to Outlaw ICBM (buy used), and run the resulting stereo signals out to each applicable sub. Edit: Shoot, does the ICBM need a signal from L/R preouts instead of split off the amp-driven binding posts?

That's all I've got. Are these any where close to the truth? Any other ideas? I'm thinking about this because the UFW-10s are on sale, and I'm tempted to pick one up, even if I'm broke as apparently the Ebony finish is on the way to join Kim Jong Il's sanity on the planet Xiron.