Question about Vocopro PV420 Main / Stereo Speaker
I have a karoake speaker set that has a built-in power amplifier in one of the speakers. Thru a cable the 2nd speaker enclosure is connected to the "amped" speaker enclosure. I've only had the set a few years and really have'nt used them all that much. Last week I went to hook them up and found that the tweeter, in the "amped" speaker was the only speaker working. Each speaker enclosure has a woofer,tweeter and a mid-range,the only difference in the two is that one has the power amp. While it was hooked up to the 2nd speaker, which sounded great,meaning all the speakers were working in that 2nd enclosure, the main "amped" speaker only had the tweeter operating. The woofer and midrange were silent. I removed the 8" woofer from the affected speaker (without disconnecting it from the devices inside the enclosure) and hooked my stereo speaker wire up to the two connections on the back of the speaker to see if it would work. Nope! Same result, only the tweeter worked.If anyone can help me with this I'd really appreciate it!!!!!
Hi, it's probably that the 8" woofer and the midrange of the "amped" enclosure is open. One way to test is to remove just one wire from the inside of the enclosure to the woofer or midrange in question and with the use of a continuity tester (or a VOM), check for the resistance of the coil of each the 2 speakers. Both should read anywhere from 4-8 ohms, if there's no reading (VOM needle will not move) then the coil(s) are open. In the absence of a tester, a single AAA or AA battery would do (pls. some would argue that this is not a sound practice, however this should be enough for you to be able to determine the condition of the coil(s)). With the use of the battery and a single short length of electrical wire, apply power from the battery to the terminals of the speaker, if the cone moves, then chances are it is good, if they don't then you would have to replace it. Am not sure if available in your area, but there are some trained people who can rewind the coil should a replacement speaker be not readily available. Hope this be of help. Please let us know how things turn up. Regards.
Posted on Apr 15, 2007
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