First, the amp must be OFF.
Second, connect the speaker-output on the amp with the powerbrake input.
Third, connect the powerbrake-output (just one of them) with the speakercabinet.
Check that the ohm-settings on the amp and speaker match!!
The powerbrake is driven be the power from the output from the amp.
By the way, if you bought it from new, there should be an instruction in the package.:cool:
Fiddles
Trolle