Load modules (PZA)
End-of-line speaker load modules for monitoring (for amplifiers < 200W)
The Model 5410EOL/5411EOL End-of-Line Module is a device that enhances automatic testing of 100 volt constant voltage speaker lines. The 5410EOL/5411EOL allows speaker wiring continuity to be tested to the end of the line without the need or expense of a return wire from the end of the line. When used with the automated test function of the 5404DZM, 5432DZM, DNA2404x or T112 or T112C amplifiers, the 5410EOL/5411EOL allows the integrity of speaker lines to be tested. While the 5410EOL/5411EOL represents a significant load on the amplifier and speaker lines at 20 kHz, it has no significant effect on the audible frequency performance of the system.
For proper/complete speaker line testing, the speakers in a circuit should be connected as a continuous chain with no parallel branches. The following figure shows the correct and incorrect ways to interconnect speakers for proper testing. Only one 5410EOL / 5411EOL can be applied to the end of the speaker line of any DZM speaker output. It is not permitted to place additional units on branch circuits from the same speaker output.