Previous Thread
Next Thread
Print Thread
Rate Thread
Page 14 of 90 1 2 12 13 14 15 16 89 90
Re: VP180
BlueJays1 #304575 05/03/10 03:50 PM
H
htnut
Unregistered
htnut
Unregistered
H
 Originally Posted By: Dr.House
What is the pricing going to be on the VP180 stand?


$240, and you get two stands, presumably one for each end.

forgot to mention pre-order for $200

Last edited by htnut; 05/03/10 03:51 PM.
Re: VP180
JohnK #304584 05/03/10 04:47 PM
Joined: Jul 2004
Posts: 4,444
Likes: 16
M
connoisseur
Offline
connoisseur
M
Joined: Jul 2004
Posts: 4,444
Likes: 16
 Originally Posted By: JohnK
Micah, when two speakers are run in parallel the resulting impedance is such that its reciprocal is the sum of the reciprocals of the impedances of the two speakers. Using 6 and 4 ohms, this works out to 1/6+1/4=1/X, 2/12+3/12=1/X, 5/12=1/X, 5X=12, X=2.4ohms.

Keep in mind that the nominal impedance ratings of speakers don't represent their impedance over their entire range(the 4ohm rating on the M80s is a notable example)and that 2.4ohm result would only apply at a frequency where the speaker impedances were in fact 6 and 4 ohms. Also note that a low impedance doesn't necessarily cause a problem if the power used at the low impedance frequency wasn't high enough to require an excessively high current.


John –

What do you think about running the VP180 below the screen and a VP150 above the screen? I’m wondering if that would be a good idea or not. I’m thinking not, but curious nonetheless.

Re: VP180
michael_d #304589 05/03/10 04:56 PM
Joined: Jan 2002
Posts: 3,270
connoisseur
Offline
connoisseur
Joined: Jan 2002
Posts: 3,270
Hi michael_d,

I think not as well, although I did not do listening tests to that combination while I was up at Axiom.

One of my Axiom colleagues, JC (Jean-Claude), has a dedicated home theater room and will try that combo once he has a sample of the VP180. He currently uses two VP150s, one above and one below his projection screen.

Sadly, I don't have room for a VP180 in my apartment. I'll have to think about buying a house so I can accommodate a VP180!

Regards,
Alan


Alan Lofft,
Axiom Resident Expert (Retired)
Re: VP180
alan #304599 05/03/10 05:18 PM
Joined: Feb 2008
Posts: 44
D
buff
Offline
buff
D
Joined: Feb 2008
Posts: 44
 Originally Posted By: alan
Sadly, I don't have room for a VP180 in my apartment. I'll have to think about buying a house so I can accommodate a VP180!


That makes the VP180 really expensive.

-Dave

Re: VP180
davew #304626 05/03/10 06:25 PM
Joined: Jan 2004
Posts: 13,840
Likes: 13
shareholder in the making
Online Happy
shareholder in the making
Joined: Jan 2004
Posts: 13,840
Likes: 13
side ports might have been an option as well.


M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85


Re: VP180
alan #304642 05/03/10 07:42 PM
Joined: Jul 2004
Posts: 4,444
Likes: 16
M
connoisseur
Offline
connoisseur
M
Joined: Jul 2004
Posts: 4,444
Likes: 16
 Originally Posted By: alan
Hi michael_d,

I think not as well, although I did not do listening tests to that combination while I was up at Axiom.

One of my Axiom colleagues, JC (Jean-Claude), has a dedicated home theater room and will try that combo once he has a sample of the VP180. He currently uses two VP150s, one above and one below his projection screen.

Sadly, I don't have room for a VP180 in my apartment. I'll have to think about buying a house so I can accommodate a VP180!

Regards,
Alan


Please keep me informed after JC has a chance to try this combo.

I am very happy with my current center set up (lower twin M22's) and an upper VP150. I will not give up the upper / lower combination.

Re: VP180
SirQuack #304644 05/03/10 07:46 PM
Joined: Feb 2004
Posts: 1,863
connoisseur
Offline
connoisseur
Joined: Feb 2004
Posts: 1,863
The only way you could wire a VP-150 and VP-180 in series using the current hardware is to. Hook up the (+) from the amp to the first speakers (+) and use a jumper from the (-) of the first speaker to the (+) of the second speaker, then plug the (-) wire from the amp to the (-) of the second speaker.


it wouldn't be that complicated, but you would need your power wires to be 2 separate pieces of wire.


I have a EE background.

Re: VP180
dakkon #304647 05/03/10 08:04 PM
Joined: Jun 2003
Posts: 8,488
T
axiomite
Offline
axiomite
T
Joined: Jun 2003
Posts: 8,488
Right - 3 single wires instead of a pair.


bibere usque ad hilaritatem
Re: VP180
dakkon #304648 05/03/10 08:11 PM
Joined: Feb 2009
Posts: 3,466
connoisseur
Offline
connoisseur
Joined: Feb 2009
Posts: 3,466
The serial interaction of the impedance of two complex networks such as speaker systems is bad enough when they have the same curve. Two dissimilar speakers will have very unpredictable (well, very hard to compute) results.

When a cross-over network is being designed for a speaker, the sensitivity of each driver is taken into account, to achieve a linear response when everything is combined. It's fine to wire two fixed resisters in series, you just add up their resistance and the sum is also fixed. But that's not how a loud speaker system works. You'll end up with a non-linear response with areas of higher impedance stacking up higher than the lows.

It's then obvious how much worse it would be with two different speakers interacting with each other.


Pioneer PDP-5020FD, Marantz SR6011
Axiom M5HP, VP160HP, QS8
Sony PS4, surround backs
-Chris
Re: VP180
ClubNeon #304652 05/03/10 08:35 PM
Joined: Feb 2004
Posts: 1,863
connoisseur
Offline
connoisseur
Joined: Feb 2004
Posts: 1,863
neon, I'm not saying its a "great" idea, just that it "is" possible. and a way to do it without having a sub 2ohm load to the amp....

Page 14 of 90 1 2 12 13 14 15 16 89 90

Moderated by  alan, Amie, Andrew, axiomadmin, Brent, Debbie, Ian, Jc 

Link Copied to Clipboard

Need Help Graphic

Forum Statistics
Forums16
Topics24,939
Posts442,452
Members15,615
Most Online2,082
Jan 22nd, 2020
Top Posters
Ken.C 18,044
pmbuko 16,441
SirQuack 13,840
CV 12,077
MarkSJohnson 11,458
Who's Online Now
0 members (), 233 guests, and 0 robots.
Key: Admin, Global Mod, Mod
Newsletter Signup
Powered by UBB.threads™ PHP Forum Software 7.7.4