Start with leaving the speakers connected and measuring the resistance across the banana plugs to see what that reads. Then use a battery (AA or 9V) to see if there is movement in the woofer when you apply voltage to it.
You say you only have one set of banana plugs (mono)? If they have wired 2 - 4 ohm speakers in parallel, then it is possible that your receiver's protection circuitry is engaging and not powering the speakers.
|