Take a close look at the back of the Bose L1 Compact. You'll find a pair of RCA jacks and a single 1/4-inch jack. These are the output plugs. You can plug a powered sub-woofer directly into the 1/4-inch output jack. You'll find the information on Page #7 of the user manual.

Good Luck,

Gary cool
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!

K+E=W (Knowledge Plus Experience = Wisdom.)