Legacy Audio Metro User Manual
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Option 2: Connecting single sub out
Connect the preamp/processor’s “sub out” to the left channel RCA input
(mono).
Option 3: Connecting the Metro using the High Level Inputs (from amplifier)
If using the high level inputs it is highly recommended that you connect
them in parallel with your main left and right loudspeakers.
NOTE: DO NOT use the output from a differential Monobloc amplifier as a
high level input to the subwoofer. When using high level inputs from a
stereo amplifier be sure that they are polarized correctly with the power
amplifier, (positive output to positive input, negative output to negative
input.) Failure to do so may result in damage to your subwoofer, power
amplifier and any associated equipment connected to it. Terminating your
wire leads with banana plugs or gold spade lugs is recommended.