PD186 design - how come it can play up to 250Hz?

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   Hi!
Most subs, also sealed boxed, doesn't sound very good crossed above ~125Hz.
I'm wondering what makes the PD 186 design (which I never heard to confirm) playable ("with no coloration", as it says) up to 250Hz. Is it the driver's specs? The geometry? Voodoo? :-)

What type of sub (preferably high eff. sub) plays the highest, BTW?

Thanks!
Adam

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AdamZuf Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 10 February 2009 Status: Offline Points: 55	Post Options Post Reply Quote AdamZuf Report Post Thanks(0) Quote Reply Topic: PD186 design - how come it can play up to 250Hz? Posted: 28 February 2009 at 2:48pm
	Hi! Most subs, also sealed boxed, doesn't sound very good crossed above ~125Hz. I'm wondering what makes the PD 186 design (which I never heard to confirm) playable ("with no coloration", as it says) up to 250Hz. Is it the driver's specs? The geometry? Voodoo? :-) What type of sub (preferably high eff. sub) plays the highest, BTW? Thanks! Adam

ceharden Members Profile Send Private Message Find Members Posts Add to Buddy List The 10,000 Points Club Joined: 05 June 2005 Location: Southampton Status: Offline Points: 11691	Post Options Post Reply Quote ceharden Report Post Thanks(0) Quote Reply Posted: 28 February 2009 at 4:00pm
	If it plays that high, it's not a sub! 250Hz is definitely not sub, not really bass either, you're up into low mids. It's all down to lots of things, the driver, the type of enclosure, the details as to how that enclosure is implemented. Generally you'll have most luck getting a sealed or reflex enclosure to play highest as you're only limited by the driver and resonances in the rear chamber which can be dealt with.

AdamZuf Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 10 February 2009 Status: Offline Points: 55	Post Options Post Reply Quote AdamZuf Report Post Thanks(0) Quote Reply Posted: 01 March 2009 at 6:09pm
	ceharden, Thanks, but I asked how to make it work in a horn, I know it can be done in regular enclosures.

mk2_ginger_biscuit69 Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 03 November 2008 Location: Brighton Status: Offline Points: 7801	Post Options Post Reply Quote mk2_ginger_biscuit69 Report Post Thanks(0) Quote Reply Posted: 01 March 2009 at 6:20pm
	it honks a lot over 125hz....and why would you want the low mids coming out of subs anyways?!? will just make the vocals synths etc etc sound all rumbly and sh*te!!
	''Remember that the object of a subwoofer is to enhance the output of your main speakers, not overpower it'' ''Dubstep - an elongated electronic fart''

AdamZuf Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 10 February 2009 Status: Offline Points: 55	Post Options Post Reply Quote AdamZuf Report Post Thanks(0) Quote Reply Posted: 26 March 2009 at 8:29pm
	Well, I assumed that this is different in this design since Rog says it got no coloration up to 250Hz..

mk2_ginger_biscuit69 Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 03 November 2008 Location: Brighton Status: Offline Points: 7801	Post Options Post Reply Quote mk2_ginger_biscuit69 Report Post Thanks(0) Quote Reply Posted: 30 March 2009 at 2:20pm
	afraid not. regardless of coloration etc, things start getting directional there, and with the 186, there isnt any directivity control in the form of a flare or whatever. I used mine to 100hz on dancey stuff, or 125hz on live stuff crossed to double 12" horn for large stuff, or single 15" reflex for smaller stuff. wouldnt mind building a load again, they are quite fun :)
	''Remember that the object of a subwoofer is to enhance the output of your main speakers, not overpower it'' ''Dubstep - an elongated electronic fart''