 Re: dual center channels (2x vp150)?
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Joined: Feb 2009
Posts: 3,466
connoisseur
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connoisseur
Joined: Feb 2009
Posts: 3,466 |
Mark's series is wrong. That's just parallel with the second speaker 180 degrees out of phase.
For it to be a series the current has to flow through one speaker and then the other before returning to the amp. So the two shouldn't share both wires between them.
Pioneer PDP-5020FD, Marantz SR6011
Axiom M5HP, VP160HP, QS8
Sony PS4, surround backs
-Chris
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Re: dual center channels (2x vp150)?
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Joined: May 2002
Posts: 10,654
shareholder in the making
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shareholder in the making
Joined: May 2002
Posts: 10,654 |
Yep. The terminology that the parallel connection "places a higher demand on the amp" could also be questioned as being too simplistic, since a lower impedance makes it easier for the voltage to "push" the current through the speaker.
-----------------------------------
Enjoy the music, not the equipment.
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Re: dual center channels (2x vp150)?
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Joined: Feb 2009
Posts: 3,466
connoisseur
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connoisseur
Joined: Feb 2009
Posts: 3,466 |
I agree, that "places a higher demand" is wrong. Maybe "demands a better amplifier", but a lower impedance is not demanding anything, it is actually easing the flow of current.
But there in lies the problem. Think of it this way, a 0 Ohm speaker would actually be a short across the amp's terminals. So the lower the impedance presented to the amp the more current is going to flow, and the more unstable the components through which the electrons are moving will become.
Also an easy way to think about the parallel vs. serial connections would be to picture each speaker as a restriction to the flow. If the feed at the amp is initially divided and allowed to flow through each speaker beside one another; the flow is doubled because the restriction is halved. But if the flow has to go through one speaker and then the next; the flow will be cut in half because there is twice as much restriction.
Pioneer PDP-5020FD, Marantz SR6011
Axiom M5HP, VP160HP, QS8
Sony PS4, surround backs
-Chris
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Re: dual center channels (2x vp150)?
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Joined: Dec 2007
Posts: 7,786
axiomite
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axiomite
Joined: Dec 2007
Posts: 7,786 |
Mark's series is wrong. That's just parallel with the second speaker 180 degrees out of phase. Great! So I'm running my centers in parallel with one out of phase. Doh! On the plus side, Mark, your reputation for being helpful on the boards is untarnished. 
Fred
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Blujays1: Spending Fred's money one bottle at a time, no two... Oh crap!
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Re: dual center channels (2x vp150)?
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Joined: Jul 2006
Posts: 12,077 Likes: 7
Founder, Axiom Upgrade Club shareholder in the making
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Founder, Axiom Upgrade Club shareholder in the making
Joined: Jul 2006
Posts: 12,077 Likes: 7 |
Mark Squareroom has been taking his frustration out on us.
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Re: dual center channels (2x vp150)?
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Joined: Dec 2007
Posts: 7,786
axiomite
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axiomite
Joined: Dec 2007
Posts: 7,786 |
 I like his new screen name. Mark, we expect a new avatar by the end of the day.
Fred
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Blujays1: Spending Fred's money one bottle at a time, no two... Oh crap!
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Re: dual center channels (2x vp150)?
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Joined: Sep 2004
Posts: 11,458
shareholder in the making
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shareholder in the making
Joined: Sep 2004
Posts: 11,458 |
I agree, that "places a higher demand" is wrong. Maybe "demands a better amplifier", but a lower impedance is not demanding anything, it is actually easing the flow of current.
But there in lies the problem. Think of it this way, a 0 Ohm speaker would actually be a short across the amp's terminals. So the lower the impedance presented to the amp the more current is going to flow, and the more unstable the components through which the electrons are moving will become.
Also an easy way to think about the parallel vs. serial connections would be to picture each speaker as a restriction to the flow. If the feed at the amp is initially divided and allowed to flow through each speaker beside one another; the flow is doubled because the restriction is halved. But if the flow has to go through one speaker and then the next; the flow will be cut in half because there is twice as much restriction. Now how do I fit all of that on the little graphic??? 
::::::: No disrespect to Axiom, but my favorite woofer is my yellow lab :::::::
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Re: dual center channels (2x vp150)?
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Joined: Sep 2004
Posts: 11,458
shareholder in the making
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shareholder in the making
Joined: Sep 2004
Posts: 11,458 |
Mark Squareroom has been taking his frustration out on us. Holy crap! I never even thought of that! It's so classic, it's pretty much a cliche! I can't achieve the same level of success that you guys do, so I can become bitter and start taking it out on all of you! This is -- like -- Marvel Comics -- good. I can be the one that becomes Evil here.... and we all assumed it would be JP that turned Mad and Evil... How can a Monday morning be improved? Have a goal!
::::::: No disrespect to Axiom, but my favorite woofer is my yellow lab :::::::
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Re: dual center channels (2x vp150)?
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Joined: Mar 2005
Posts: 7,463 Likes: 1
axiomite
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axiomite
Joined: Mar 2005
Posts: 7,463 Likes: 1 |
***********
"Nothin' up my sleeve. . ." --Bullwinkle J. Moose
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Re: dual center channels (2x vp150)?
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Joined: Apr 2003
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shareholder in the making
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shareholder in the making
Joined: Apr 2003
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