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Post by Deleted on Mar 28, 2014 15:59:00 GMT -5
The CMX-2 has a three leg RF filter and a DC offset correction circuit. The CMX-6 has a three leg RF filter and nothing else. Well, four more outlets. Both are designed to not limit current to any device that it will feed including BIG power amps. These power filters are the only power conditioners that Emotiva recommends for any of their products. Hmm... I've been getting interested in a Furman module which I would think satisfy Emo's worries about current limitation, and offer some protection as well as RF filtering. I also like their "component" shape which stacks or racks well, have on/off switches and an extra outlet on the front. Specifically I've been looking at the Furman PL-PLUS C, $229.95 from Sweetwater at the moment - yes, about the same cost as a CMX-2 and -6 combined ;-) Given the Stealth-8's are Pro monitors it would seem the Furman's are in the right ballpark, as long as there is no effect on SQ. I really like my APC H15. They are usually around the 250.00 mark. The H15 also has voltage regulation/stabilization. There is a rack mount version for sale on ebay for 100.00 www.ebay.com/itm/APC-H15BLK-12-OUTLET-H-TYPE-RACK-MOUNTABLE-POWER-CONDITIONER-H15-/151217524604?pt=US_Surge_Protectors_Power_Strips&hash=item2335444f7cI have used my DriveCores directly into it with any issues, but I am thinking about getting a CMX-2 so I can free up a couple of its outlets. |
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Post by Bonzo on Mar 28, 2014 18:15:57 GMT -5
These power filters are the only power conditioners that Emotiva recommends for any of their products. Sorry, but this made me chuckle. Not that's it's false or crazy or stupid, but I mean seriously, would you expect anything different? Ford is not going to recommend you use G.M. stuff are they? I bought the CMX-2 and it was a tank, but it didn't work for my house and my wiring and my system. The Belkin-PF 60 works wonders at my place, and I couldn't live without it or the like. |
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Post by goldenear2 on Jul 12, 2015 10:31:50 GMT -5
I have a CMX-6 and I noticed that the line status monitoring LEDs doesn't light up. It used to indicate line correct ( left & middle pilot lights on )I think the line monitoring feature is busted. Tried plugging the CMX-6 on other outlets still no light. Although the CMX6 is still providing current on its 6 outlets , I'm just curious if it is still functioning properly especially noise filtering. Is the line monitoring feature a different circuit on its own? Any input or thoughts would appreciate it. Thank you. I noticed this morning my CMX-6 doesn't light up anymore. I've unplugged and and pressed the reset button, still nothing. Equipment still functions, just no lights, should I be concerned? My other CMX-6 & (2)CMX-2 are working correctly. |
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Post by uthiker on Jul 12, 2015 14:10:58 GMT -5
I have three CMX-6's ranging from one month old to 1.5 years old,the one in the middle a little over a year old same thing. Seems to be working ok just one of the led's is out....Like all audio gear I keep my fingers crossed and hope for the best
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Post by geebo on Jul 12, 2015 14:28:42 GMT -5
I have a CMX-6 with an LED out. I used one of these plugged into a socket of the CMX-6 and it showed as being good. An LED must be out. (on mine anyway).  |
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Post by garbulky on Jul 20, 2015 0:26:45 GMT -5
I believe part time audiophile had some problems crop up with the cmx unit as well.
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Post by ac2011 on Sept 14, 2015 7:37:50 GMT -5
Bit of a bump to this discussion.
I currently have my XPA-3 running "naked" (ie. just plugged into the outlet). Have 2 XPA-100's on the way. Could I plug all 3 of these units into a CMX-6? Do I need to plug them into anything?
Note, I have 2 dedicated circuits (4 outlets total) for my gear (not including the TV or subwoofers) - I believe they are 15amp circuits, but I'll have to check, they could be 20amp.
Currently, the XPA-3 is the only thing plugged into 1 of those circuits. Everything else is running off my surge protector whatever plugged into the other circuit. I have whole home surge protection in my panel.
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Post by creimes on Sept 14, 2015 8:25:13 GMT -5
Bit of a bump to this discussion. I currently have my XPA-3 running "naked" (ie. just plugged into the outlet). Have 2 XPA-100's on the way. Could I plug all 3 of these units into a CMX-6? Do I need to plug them into anything? Note, I have 2 dedicated circuits (4 outlets total) for my gear (not including the TV or subwoofers) - I believe they are 15amp circuits, but I'll have to check, they could be 20amp. Currently, the XPA-3 is the only thing plugged into 1 of those circuits. Everything else is running off my surge protector whatever plugged into the other circuit. I have whole home surge protection in my panel. Yes you will be fine having all three plugged into the CMX-6, I have my XPA-5, XMC-1, Oppo 103 and TV plugged into my CMX-6 and my XPA-2 and EP 4000 amp plugged into a CMX-2 on two 15amp circuits. Chad |
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Post by ac2011 on Sept 18, 2015 9:24:43 GMT -5
The recommended solution for those that need more than two outlets and want the superior performance is to buy both and plug the CMX-6 into one of the outlets on the CMX-2. That way you have 7 outlets with the superior filtering performance. Does anyone know if you really can/should do this ^^^? What about plugging my surge center with all my other equipment on it into a CMX-2? At least one of my pieces (not sure if it is the receiver or the cable box) has a definite hum to it, thinking a CMX-2 might solve the issue, but still want the surge protection that my regular surge bar/center offers... |
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Post by repeetavx on Sept 18, 2015 11:42:22 GMT -5
If DC offset is the cause of your hum then the CMX-2 would fix it. The CMX-2 does not limit current, so you could run anything with it.
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Post by ac2011 on Sept 18, 2015 12:46:06 GMT -5
If DC offset is the cause of your hum then the CMX-2 would fix it. The CMX-2 does not limit current, so you could run anything with it. Thanks. But, guess I was thinking more in terms of overloading the circuit. I would kind of like to plug an XPA-3 and 2 x XPA-100's into some form of the CMX-2 - either by daisy chaining a CMX-6 to a 2 or having 2 x CMX-2, I guess. But, then also if other equipment in my rack, plugged into a surge protector, is doing some humming, then it would be nice to be able to plug that surge center right into a CMX-2 as well to eliminate that. But don't know if all of that would be way too much for 1 or 2 circuits. |
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Post by ac2011 on Sept 18, 2015 12:56:20 GMT -5
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?
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KeithL
Administrator 
Posts: 10,261
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Post by KeithL on Sept 18, 2015 13:18:08 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? |
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Post by ac2011 on Sept 18, 2015 13:22:16 GMT -5
Thanks. But I can't change out the cable or re-route it, as it is all in wall/ceiling. Maybe if I ever go full Atmos by adding ceiling speakers I'll be able to get access to it at that time. Might just end up putting the subwoofer in a different spot and use a different drop. 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? |
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Post by novisnick on Sept 18, 2015 14:01:36 GMT -5
Thanks. But I can't change out the cable or re-route it, as it is all in wall/ceiling. Maybe if I ever go full Atmos by adding ceiling speakers I'll be able to get access to it at that time. Might just end up putting the subwoofer in a different spot and use a different drop. 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. Try a wireless unit for the sub!  ? |
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Post by ac2011 on Sept 18, 2015 14:04:09 GMT -5
Thanks. But I can't change out the cable or re-route it, as it is all in wall/ceiling. Maybe if I ever go full Atmos by adding ceiling speakers I'll be able to get access to it at that time. Might just end up putting the subwoofer in a different spot and use a different drop. Try a wireless unit for the sub! ? Actually, never even thought of that! Might do some research on those. Thanks. |
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Post by novisnick on Sept 18, 2015 15:54:43 GMT -5
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Post by gus4emo on Sept 18, 2015 16:55:17 GMT -5
I have the Outlaws transmitter, incredible clean signal, enough said.
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Post by ac2011 on Sept 18, 2015 20:08:30 GMT -5
Thanks. I'm in Canada, checked out the Canadian BB site and that kit is actually on sale this week, so will probably pick one up to try. Read a thread about these units over at AVS and there were some others mentioned - Outlaw has one, and some others, but the Rocketfish had lots of people vouching for it (obviously also some who said they had issues) and it is one of the most reasonably priced. |
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Post by vcautokid on Sept 19, 2015 8:52:06 GMT -5
In Some installations, both the CMX-2, and the CMX-6 are ideal. If you have an issue with DC offset in your AC power to the degree above, the CMX-2 is a great solution, and run the CMX-6 for everything else. You could even run the CMX-2, and CMX-6 together with no worries too. Since they don't limit current, you could get the best of both solutions. The quality outlets you need, and the DC offset filtering there too.
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