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Post by hcsunshine90 on Jun 12, 2014 12:51:38 GMT -5
i need just a simple, non expensive, non exotic power conditioner so i can run my UPA-1's through it. i was told somewhere that what i want/need is a non current limiting power conditioner. any recommendations from you folks?
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Post by Cory Cooper on Jun 12, 2014 12:57:07 GMT -5
The Emotiva CMX-2 ($99) or CMX-6 ($119) are great units. Build quality is excellent.
An inexpensive standard power strip won't do it. You need something designed to not limit current for amplifiers. That is what the Emotiva units were designed for.
C
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Post by hcsunshine90 on Jun 12, 2014 13:20:23 GMT -5
what is the difference between the CMX-2 and CMX-6? just more outlets on the one? i think i'm gonna get the CMX-2 for my UPA-1's, but now i'm wondering if i need a second (maybe CMX-6) to run my TT, CD player and XSP-1 gen 2 through? could i run the XSP-1 through my old power conditioner (has filter and super filter) wondering since it's less power hungry than the amps, if i could get away with this?
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Post by Cory Cooper on Jun 12, 2014 13:27:13 GMT -5
They are identical, other than the CMX-2 adds a precision DC offset eliminator circuit, and the number of outlets.
You could go either way or use both. I currently run my XPA-5 and Ultra Sub 12 on a CMX-2 and the rest of my gear on a CMX-6. Both are plugged into the same outlet.
What brand/model is your current power conditioner?
C
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Post by hcsunshine90 on Jun 12, 2014 13:31:45 GMT -5
i says "datashield" model 100. i'm thinkin i want a seperate outlet for the amps. so i may buy the CMX-2 for them and a CMX-6 (to put through a different outlet) for everything else?
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Post by Cory Cooper on Jun 12, 2014 13:42:10 GMT -5
I believe that is a Tripp Lite model designed for computers and network devices. It should still work for audio equipment. Yes, that would work. In reality however, there really would't be a need for a separate outlet for the amps. In fact, it could cause a ground loop, depending on the wiring in your location. All of the equipment in my signature, and a 42" HD plasma, are plugged into one wall outlet. Others here use multiple XPR amps in the same outlet without issue. I also have a PA system that has two Crown CE 4000 PA amps. With the whole PA system plugged into the same 15A circuit, running at well over 110 dB, it never draws more than 5-6A. But, it's your choice.  C |
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Post by creimes on Jun 12, 2014 13:46:55 GMT -5
i says "datashield" model 100. i'm thinkin i want a seperate outlet for the amps. so i may buy the CMX-2 for them and a CMX-6 (to put through a different outlet) for everything else? I use 2 CMX-2's for my amps and a CMX-6 for my other gear. Chad |
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Post by hcsunshine90 on Jun 12, 2014 13:48:34 GMT -5
barring the seperate outlet thing, i'm assuming (never good) that the power conditioner i have now might be current limiting. how critical is it to have the XSP-1 running through a non current limiting conditioner? if it's not critical then i'll use my old one. by the way, if i had a ground loop, would i know it? (by maybe a hum commin out of my speakers?)
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Post by Cory Cooper on Jun 12, 2014 13:55:57 GMT -5
I would guess that the power conditioner you have now is definitely limiting current. Amplifiers should always be connected through a non-current limiting power unit or directly to the wall outlet. Other audio devices usually don't draw enough current to worry about limiting.
Yes, you would hear a hum/buzz through your speakers if you had a ground loop.
C
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Post by garbulky on Jun 12, 2014 14:02:23 GMT -5
You also don't need a power conditioner for "protection" purposes as Emotiva amps have protection built in against faults. Though the emotiva circuits aren't conditioners as such they can protect the amps against the faults.
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Post by hcsunshine90 on Jun 12, 2014 14:04:46 GMT -5
this is great to know info. I'm gonna order the CMX-2 now for my amps. for the rest of the equipment, i'll just use what I have for the time being. "everything's wonderful"  |
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Post by hcsunshine90 on Jun 12, 2014 14:20:21 GMT -5
i kinda did things backwards here. i just ordered the CMX-2 for my amps. now i'm wondering what i will gain with this rather than plugging the amps directly into the wall? (i'm wondering if i should cancel the order and just plug the amps directly into the wall)
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Post by Cory Cooper on Jun 12, 2014 14:23:17 GMT -5
You will get the benefit of removing DC offset if it is present in your AC line, filtering of most types of line noise, as well as a second layer of protection for the amps.
C
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Post by hcsunshine90 on Jun 12, 2014 14:27:20 GMT -5
ah, ok. final post on this thread for me. i will keep the CMX-2. cheers!
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Post by hcsunshine90 on Jun 12, 2014 21:35:12 GMT -5
wait a minute, i also play guitar and have my fender twin reverb amp (85 watt) plugged into a tripp lite isobar 4 ultra power conditioner. this is probably current limiting. i wondering, could i use a CMX-2 (buy another one) with my guitar amp? would that work well? i would think that my guitar amp might be drawing a little bit of current.
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Post by bitsandbytes on Jun 13, 2014 4:06:55 GMT -5
wait a minute, i also play guitar and have my fender twin reverb amp (85 watt) plugged into a tripp lite isobar 4 ultra power conditioner. this is probably current limiting. i wondering, could i use a CMX-2 (buy another one) with my guitar amp? would that work well? i would think that my guitar amp might be drawing a little bit of current. Congrats on your new purchase. Smart move. Before buying another one, why not test the one you just bought on your guitar amp first to see how much of a difference (if any) you will hear? |
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Post by hcsunshine90 on Jun 13, 2014 7:59:57 GMT -5
oh yeah, great idea! that cat playin the guitar is cool!
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Post by garbulky on Jun 13, 2014 10:33:19 GMT -5
I don't see a need for the CMX-2 unless you are having audible noise issues. If your emo gear sounds fine just go direct to the wall or a non power conditioning power strip.
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Post by hcsunshine90 on Jun 13, 2014 12:09:04 GMT -5
i'm keeping the CMX-2 that i ordered, and will use it for the UPA-1's. everything else (the power cords for both the pre amp and the CD player as well as the AC adapters for the TT and phono stage) will go through this old power strip w/ filters on it. the only remaining question i have is would there be any advantage of plugging the respective power strips into their own seperate outlets? i've heard different accounts on this. also, i certainly wouldn't want to cause a ground loop (by plugging them into seperate outlets) and put a hum through my speakers.
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Post by bitsandbytes on Jun 13, 2014 12:57:11 GMT -5
i'm keeping the CMX-2 that i ordered, and will use it for the UPA-1's. everything else (the power cords for both the pre amp and the CD player as well as the AC adapters for the TT and phono stage) will go through this old power strip w/ filters on it. the only remaining question i have is would there be any advantage of plugging the respective power strips into their own seperate outlets? i've heard different accounts on this. also, i certainly wouldn't want to cause a ground loop (by plugging them into seperate outlets) and put a hum through my speakers. Thanks for your compliment on my guitar playing cat. Most wall receptacles have dual outlets. They share the same ground. Just plug the CMX-2 into one and your power strip into the other. |
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