than one cabinet, check all cable connections in the chain. If you then suspect that the problem may be a bad cable, you can use a 9 volt battery as a
You can test for an intermittent cable by keeping the battery on the phone plug while swinging the wire like a jump rope. If the cable is good, the speaker will remain in its battery activated position and not make any noise. This test can be especially handy after making new cables or repairing old ones, and it can also be used to check speaker phasing.
Note: Holding a battery on a phone plug continuously will drain the battery quickly, so don’t overdo it. Conversely, this test will tell you if you have a dead 9 volt battery; if you know the cable is good but the speakers don’t move, toss the battery.)
Before reconnecting your system and turning the amplifier on, make one last check to be sure all of your cables are connected
“I hear a tinny/hollow/lifeless sound.” “The sound has no ‘body’ to it.”
“It just sounds bad.”
This could be because your enclosures are out of phase. Basically, this means that while the speaker cones of one cabinet are moving out, the cones of the second cabinet are moving in. The net result is that little or no sound is produced. To verify this situation, you can use a 9 volt bat- tery. Turn off your amplifier and unplug the speaker cable from the amp, leaving the other end still connected to the enclosure. Touch the plus (+) side of the battery to the tip of the phone plug and the minus
Take your battery and recheck the phasing of both speakers, using your speaker cable. If they check out okay, then your speaker cable is
Note: Whenever you replace a speaker or have one replaced, use this test to make sure it has been properly installed in the enclosure. You should also check all new or repaired cables the same way.