Re: EP-350 V3 warmup?
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Joined: May 2003
Posts: 18,044
shareholder in the making
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shareholder in the making
Joined: May 2003
Posts: 18,044 |
Ya know, I've never messed with that on my sub. Perhaps I should try it.
I am the Doctor, and THIS... is my SPOON!
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Re: EP-350 V3 warmup?
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Joined: May 2009
Posts: 4
newbie
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OP
newbie
Joined: May 2009
Posts: 4 |
Some people like a variable phase dial. I find having a 0°/180° polarity switch covers enough ground. Having the drivers in sync is mandatory.
I agree with SirQuack...In most situations drivers facing the same direction and on the same plane, 9 times out of 10 you'll find 0° phase your best option (all drivers in the system are pushing and pulling in unison). However, there are situations (I believe my drivers are wired backwards or the amplifier in the sub inverts polarity) where even room acoustics can create problems. Trust your ears. If your ears do not hear any difference leave it at 0° and don't sweat it.
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Re: EP-350 V3 warmup?
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Joined: Aug 2007
Posts: 3,488 Likes: 9
connoisseur
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connoisseur
Joined: Aug 2007
Posts: 3,488 Likes: 9 |
Another way to micro-adjust the phase of your sub is to play with the "subwoofer distance" in your receiver. Phase issues is the reason why often tools like Audissey does strange thing with subwoofer distance.
See Mojo's signature
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Re: EP-350 V3 warmup?
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Joined: Jan 2004
Posts: 13,843 Likes: 13
shareholder in the making
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shareholder in the making
Joined: Jan 2004
Posts: 13,843 Likes: 13 |
My statement comes from what Ian, Alan, and Chris (Audyssey), and I believe Dr Toole, say you should do in most situations. I've played around with phase until I'm blue in the face, graphs up the ying yang, etc. Phase, is only one component of how a speakers works within a room. Placement, room size/dimensions, etc. also affect FR. In all the testing I've done with 3 subs and many many placements, I always get better results using 0 phase.
M80s VP180 4xM22ow 4xM3ic EP600 2xEP350 AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85
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Re: EP-350 V3 warmup?
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Joined: Aug 2007
Posts: 3,488 Likes: 9
connoisseur
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connoisseur
Joined: Aug 2007
Posts: 3,488 Likes: 9 |
I agree, as long as you actually HAVE room to move the sub. Not everyone has multiple positions available. When you don't it is nice to have subwoofer distance as fallback (no need for fancy dial on the sub itself where 0/180 is quite enough).
See Mojo's signature
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Re: EP-350 V3 warmup?
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Joined: Aug 2004
Posts: 6,379 Likes: 7
axiomite
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axiomite
Joined: Aug 2004
Posts: 6,379 Likes: 7 |
The problem with variable phase dials is that AFAIK nobody has ever made a "variable phase" circuit, it's a "variable delay" labelled as variable phase. Ideally I guess you would have both; a switch to invert and introduce a 180 degree phase shift in all signals no matter the frequency, and a variable delay for fine tuning. Then again, since AV receivers frequently have the variable delay covered... ... (light slowly flickers on) I guess that's why the switch is standard these days
M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39 M5HP, M40ti, Sierra-1 LFR1100 active, ADA1500-4 and -8
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Re: EP-350 V3 warmup?
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Joined: Dec 2007
Posts: 7,786
axiomite
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axiomite
Joined: Dec 2007
Posts: 7,786 |
(light slowly flickers on) Woulda never gone off if you had a UPS.
Fred
------- Blujays1: Spending Fred's money one bottle at a time, no two... Oh crap!
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