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<p>The&nbsp;Bose Power Stand for L1 Model II&nbsp;is the base unit that connects and powers the speaker array and provides the subwoofer speaker output. The stand features foldable feet that, once extended, provide stability when setting up the speaker column.<br /><br />The panel offers a variety of connections, knobs, and switches including the IEC power main input, power switch with LED indicator, an analog trim knob, a 1/4" TRS line-level input, a signal/clip indicator, and a bass module output, which can drive a single B2 or two B1 bass modules. Additionally, the Bass-Line Out is a post DSP bass signal output used to drive a PackLite power amplifier for driving additional B1 or B2 bass modules. The ToneMatch port is designed to interface with the T1 ToneMatch audio engine.</p>