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The following page was printed from RemoteCentral.com:
need some help.....might be for ernie
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Topic: | need some help.....might be for ernie This thread has 20 replies. Displaying posts 1 through 15. |
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Post 1 made on Tuesday May 6, 2014 at 00:00 |
pesci Senior Member |
Joined: Posts: | August 2006 1,211 |
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so im having a brain fart. i looked at a job that an electrician wired 6 zones for sonos, no biggie. so the master bed and master bath are wired in a way for the same zone which i think they are in series?
comes out from the amp and hits the first spkr, then loops out to the bathroom which is a DVC, loops back out to the bedroom to the farthest speaker then back to the amp? i havent seen this in years, and not sure what to do or tell him? will this work? seems like it would, and if it does, how do you wire the loop? series and backwrap the blacks?
thanx guys
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Post 2 made on Tuesday May 6, 2014 at 00:36 |
Mario Loyal Member |
Joined: Posts: | November 2006 5,681 |
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How many conductors? are planning on using 8ohm speakers?
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OP | Post 3 made on Tuesday May 6, 2014 at 00:40 |
pesci Senior Member |
Joined: Posts: | August 2006 1,211 |
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yeah sorry
8 ohm speakers, 2- 16-2's for 2 channels but they have it as one big loop? im assuming he was series it in?
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Post 4 made on Tuesday May 6, 2014 at 01:02 |
Mario Loyal Member |
Joined: Posts: | November 2006 5,681 |
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Yeap, Run it in series for 16Ohm impedance
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Post 5 made on Tuesday May 6, 2014 at 02:49 |
Ernie Gilman Yes, That Ernie! |
Joined: Posts: | December 2001 30,104 |
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Not enough info. Are you saying that all the wires you've mentioned are 16-2? You write this: 8 ohm speakers, 2- 16-2's for 2 channels but they have it as one big loop? It seems that you are asking US how this room is wired. I'd say it's your job to take a toner, and a piece of paper, tone it out and write it down. With something confusing it's really important to write it down because it's easy to forget a detail and get confused. im assuming he was series it in? I can't tell without a better description of the wiring. Again, you're there and you're asking us how it's wired.
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A good answer is easier with a clear question giving the make and model of everything. "The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw |
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Post 6 made on Tuesday May 6, 2014 at 06:16 |
Mario Loyal Member |
Joined: Posts: | November 2006 5,681 |
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Mike, I may not have been clear in my second post. Take your first 16/2 from amp into the 1st MBr speaker in series and continue to one side of the DVC MBa speaker. Take the second 16/2 from the amp thru the 2nd MBr speaker in series and continue to the other side of the DVC MBa speaker.
If you run them in parallel than you'll end up with 4 Ohm impedance which the Sonos might not be happy with. In series, you'll end up with 16 Ohm impedance which Sonos will handle just fine, although it won't play as loud since you're driving 2 speakers vs. 1.
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Post 7 made on Tuesday May 6, 2014 at 08:39 |
FunHouse Texas Active Member |
Joined: Posts: | June 2013 595 |
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for 2 - 8ohm speakers series would be 16 ohms. There is a DVC (8ohmsx2) in the chain which would then increase the ohms even further - right? so as I read its (4) 8 ohm speakers in the path.
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I AM responsible for typographical errors! I have all the money I will ever need - unless i buy something.. |
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Post 8 made on Tuesday May 6, 2014 at 08:50 |
bricor Advanced Member |
Joined: Posts: | March 2006 902 |
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Just put a 3 way light switch at the volume control location and you'll be fine. ;)
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Post 9 made on Tuesday May 6, 2014 at 09:25 |
fcwilt Senior Member |
Joined: Posts: | September 2003 1,283 |
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On May 6, 2014 at 08:39, FunHouse Texas said...
for 2 - 8ohm speakers series would be 16 ohms. There is a DVC (8ohmsx2) in the chain which would then increase the ohms even further - right? so as I read its (4) 8 ohm speakers in the path. One 8 ohm speaker plus one 8 ohm VC of the DVC speaker in series for each channel (left and right). So 16 ohms per channel.
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Regards, Frederick C. Wilt |
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Post 10 made on Tuesday May 6, 2014 at 11:00 |
KeithDBrown Long Time Member |
Joined: Posts: | December 2013 418 |
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No need to protect the Sonos ZP120/Connect:Amp from a 4-ohm load. It will present no problems whatsoever, and Sonos tech support will tell you the same thing.
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Post 11 made on Tuesday May 6, 2014 at 11:21 |
Ernie Gilman Yes, That Ernie! |
Joined: Posts: | December 2001 30,104 |
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bricor, I like the light switch idea, though it's pretty funny. On May 6, 2014 at 08:39, FunHouse Texas said...
for 2 - 8ohm speakers series would be 16 ohms. There is a DVC (8ohmsx2) in the chain which would then increase the ohms even further - right? so as I read its (4) 8 ohm speakers in the path. A dual voice coil speaker is indeed two 8 ohm coils, but only one is wired into each channel. Thus you're totally accurate when you said it's 8ohmsx2, except that's only 8 ohms for each channel, so it doesn't add 16 ohms. That said, as Funhouse sees it, that would be in series with the others, so there'd be a 24 ohm load; if they were all in parallel it would be a 2 2/3 ohm load (8/3), which brings me back to asking pesci for a better description of just what's run where so we can all be on the same page with our help. Beware of putting speakers in series if they're not the same model. The impedance at bass resonance of the poorer speaker will crap up the bass response of the better speaker by supplying less voltage, less power at and near that frequency. If the models are identical, the response won't be affected by putting them in series.
Last edited by Ernie Gilman on May 6, 2014 11:30.
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A good answer is easier with a clear question giving the make and model of everything. "The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw |
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Post 12 made on Tuesday May 6, 2014 at 11:52 |
FunHouse Texas Active Member |
Joined: Posts: | June 2013 595 |
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where are you getting 2 channel from? a LOOP as it is described is not 2 channel. as stated there are 2 wires (pair) at the amp. nowhere in the chain does it say they are separated. simply not enough detail to answer if one wire goes to left BedR speaker then to one side of the DVC and ENDS and the same happens for the right speaker in the BedR then to the other half of the DVC the yes, 2 channel in series. that is not clear in the description
Last edited by FunHouse Texas on May 6, 2014 12:16.
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I AM responsible for typographical errors! I have all the money I will ever need - unless i buy something.. |
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Post 13 made on Tuesday May 6, 2014 at 12:38 |
Ernie Gilman Yes, That Ernie! |
Joined: Posts: | December 2001 30,104 |
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Funhouse, he says 2 16-2s for two channels, so I thought stereo.
I also assumed that a double voice coil speaker would only be purchased for use in a stereo setup; otherwise money has been wasted.
Agreed: not enough information.
Pesci, try this: as you write your description, read it and see if we might have any questions as to what is where.* I've seen refining of the exact question result in the answer being obvious, but you've GOT to pin down all the details for that to happen.
*The best example I've heard of in regards to this process was a story of an engineer who couldn't figure out how to do something but was terrified of asking his a-hole jerk of a boss for help. He wrote his question, then it occurred to him that his boss would ask something, so he found out the answer to that issue... this continued until he realized he had worked out the answer himself. And write it down. Make pictures. Compare the pictures to what you see so you know you've portrayed it accurately.
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A good answer is easier with a clear question giving the make and model of everything. "The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw |
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Post 14 made on Tuesday May 6, 2014 at 13:01 |
FunHouse Texas Active Member |
Joined: Posts: | June 2013 595 |
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prehaps BUT as its written the second wire is just the other end of the first wire looping back to the amp we are going in circles until he updates the information
Last edited by FunHouse Texas on May 6, 2014 13:15.
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I AM responsible for typographical errors! I have all the money I will ever need - unless i buy something.. |
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Post 15 made on Tuesday May 6, 2014 at 15:24 |
Innovative A/V Select Member |
Joined: Posts: | December 2007 1,966 |
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I am seeing it as the electrician prewired it and instead of cutting his wire for each speaker he just ran a loop around. Cut the wire and connect the two speakers
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www.goinnovativeaudiovisual.comCedia certified installer ISF Certified 'It's not how many times you get knocked down but it's how many times you get back up and go forward" |
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