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Post by highfihoney on Sept 20, 2015 0:04:18 GMT -5
Probably not. If you're currently using an unbalanced cable, then you should switch to a balanced one (they're designed to avoid problems like this). Otherwise, try and route the cable away from AC circuits and other noise sources. And, if your cable has to cross or be near AC power lines, try and have it cross them at right angles; DO NOT run an audio signal line parallel to and near an AC power cable. Also, specifically, keep it away from fluorescent lights - their ballasts are notorious noise sources. Here is another potentially stupid question - one of my subwoofers has a slight hum. Doesn't really seem to be a ground loop or the like. Tom (at PSA) kind of thinks maybe my subwoofer cable (run across a ceiling and down a wall) might be too close to an AC line; or maybe too close to one of the pot lights in the ceiling. Would using a CMX-2 on the subwoofer help with this, do you think? Old post but wanted to touch on the ballast rfi issue brought up & unexplained noise in the system . If your running cheap quality or defective digital ballasts within HID or Florescent lighting RFI can enter the system thru several paths , any loose or damaged cable connections, open cable leads or even thru unused rca & balanced in's & outs on your gear , i use shorting plugs on all my unused in's & outs on all my gear & on unused ports on the cable box's . I have a system in a home that has 28 600 watt digital ballasts in the barn & any unused in or out anywhere in the system will let rfi into the system & mess up the interactive cable as well as an audible hiss , shorting plugs stopped all my rfi issues instantly . |
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Post by boomzilla on Sept 20, 2015 0:10:51 GMT -5
It should be noted that despite the resemblance, the CMX-2, and the CMX-6 are NOT SURGE PROTECTORS, they are filters. Sincerely /b Technically, they ARE surge suppressors. They have metal-oxide varistors (MOVs) in them that shunt high voltage to ground. They are also filters. I have a CMX-6 with an LED out...An LED must be out. (on mine anyway). If ALL the LEDs go out, the MOV is fried. Boom |
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Post by boomzilla on Sept 20, 2015 10:50:50 GMT -5
In fact, I cite information directly from Lonnie, generously provided while I was writing a review of the products:
The units do include metal-oxide-varistors that provide surge suppression. If the MOVs are blown, no lights will be on at all.
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geebo
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Post by geebo on Sept 20, 2015 11:33:22 GMT -5
In fact, I cite information directly from Lonnie, generously provided while I was writing a review of the products: The units do include metal-oxide-varistors that provide surge suppression. If the MOVs are blown, no lights will be on at all. But then if you plug in one of the circuit testers like I mentioned above would it show the correct wiring on it? |
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Post by boomzilla on Sept 20, 2015 14:44:35 GMT -5
The lights are dual-purpose. If some of the lights are out, it might indicate a circuit fault (which is what you tested with your device). But if ALL the lights are out, it is an indication that the MOV (surge suppressor part of the device) is no longer working.
I haven't read the owner's manual recently enough to recall what individual lights out mean. It is, however, also possible that one of the LEDs just burned out, and that nothing is wrong with the circuit at all (which is what your test device shows).
MOVs, LEDs, and capacitors are inexpensive enough that if one went out on my CMX, I'd just get a soldering gun & replace it...
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geebo
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Post by geebo on Sept 20, 2015 17:29:48 GMT -5
The lights are dual-purpose. If some of the lights are out, it might indicate a circuit fault (which is what you tested with your device). But if ALL the lights are out, it is an indication that the MOV (surge suppressor part of the device) is no longer working. I haven't read the owner's manual recently enough to recall what individual lights out mean. It is, however, also possible that one of the LEDs just burned out, and that nothing is wrong with the circuit at all (which is what your test device shows). MOVs, LEDs, and capacitors are inexpensive enough that if one went out on my CMX, I'd just get a soldering gun & replace it... If the light(s) are out on the CMX-6 and you plug in a circuit tester to one of it's outlets and the tester indicates proper wiring and operation then wouldn't it have to be a burned out LED(s) on the CMX? |
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Post by boomzilla on Sept 21, 2015 11:42:26 GMT -5
If some lights are out (but the circuit tests good) then it's probably bad LED(s). But if all the lights are out, it's probably a bad MOV.
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Post by starkiller on Jan 21, 2016 18:02:07 GMT -5
My powered sub has "pops" when the fridge, washing machine etc are cycling. Will either of these help? cant really run a dedicated line  |
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Post by Loop 7 on Sept 14, 2016 1:48:14 GMT -5
Is the SMX-6 potentially discontinued or just temporarily out of stock?
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geebo
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Post by geebo on Sept 14, 2016 7:05:17 GMT -5
Is the SMX-6 potentially discontinued or just temporarily out of stock? My guess is the the CMX-6 is just out of stock at the moment. |
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Post by jedinite24 on Oct 5, 2016 13:48:57 GMT -5
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