Legacy Thumper Owner's Manual - page 12
12
Option 3: Connecting the Thumper using the High Level Inputs (from
amplifier).
A. If using the high level inputs (fig. 1), it is highly recommended that you
connect them in parallel with your main left and right loudspeakers.
B. One may decrease the low frequency demands from the main left and
right speakers by connecting them to the binding posts labeled High
Level Out. This will reduce the current flow below 100 Hz to the main
speakers. A more precise management is possible through some
surround processors.
NOTE:
1. DO NOT use the output from a bridged amplifier output as a high level
input to the subwoofer.
2. 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.
3. Terminating your bare wire leads with banana plugs or gold spade lugs
is also recommended.