HD15 curve

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Hey guys im building 2 HD15s. got a couple of questions...1)Dad ordered my wood and got it wrong and got 6mm ply for the curve , is this too thick to bend the radius it needs to. Although I know its not ideal was wandering if it was possible.
2)what driver would be best to use? eminence kappa 15 LF or p-audio E15-600s 600w

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DaveMarks Members Profile Send Private Message Find Members Posts Add to Buddy List New Member Joined: 08 October 2014 Location: North Devon Status: Offline Points: 3	Post Options Post Reply Quote DaveMarks Report Post Thanks(0) Quote Reply Topic: HD15 curve Posted: 08 October 2014 at 2:08pm
	Hey guys im building 2 HD15s. got a couple of questions... 1)Dad ordered my wood and got it wrong and got 6mm ply for the curve , is this too thick to bend the radius it needs to. Although I know its not ideal was wandering if it was possible. 2)what driver would be best to use? eminence kappa 15 LF or p-audio E15-600s 600w

stitchy Members Profile Send Private Message Find Members Posts Add to Buddy List Young Croc Joined: 07 October 2007 Location: Nottinghamshire Status: Offline Points: 996	Post Options Post Reply Quote stitchy Report Post Thanks(0) Quote Reply Posted: 08 October 2014 at 2:23pm
	you need 3mm ply for the curve, driver wise I would go for the eminence

mini-mad Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 13 July 2012 Location: london Status: Offline Points: 6861	Post Options Post Reply Quote mini-mad Report Post Thanks(0) Quote Reply Posted: 08 October 2014 at 3:05pm
	Do it the old boat makers way... heat the wood up using steam and then very slowly using a jig bend it over a period if time. ...or buy 3mm ply.
	If it sounds like a gorilla is trying to escape, turn it down.

andycw Members Profile Send Private Message Find Members Posts Add to Buddy List Young Croc Joined: 17 November 2010 Location: Norfolk Status: Offline Points: 994	Post Options Post Reply Quote andycw Report Post Thanks(0) Quote Reply Posted: 08 October 2014 at 3:49pm
	People say the Thomann branded 15's are better(and cheaper)than the Kappa. How true that is I don't know.
	No Bass No Fun

njw Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 26 March 2010 Location: S. Wales Status: Offline Points: 2700	Post Options Post Reply Quote njw Report Post Thanks(0) Quote Reply Posted: 08 October 2014 at 7:34pm
	I used three layers of 6mm ply when I did the curves on mine and you are correct, it will not bend to the radius required, I found a way around this however, I routered shallow grooves, about 2mm deep out of the wood about every 30mm along on the panel with a 6mm bit, this gave the wood the flexibility it needed to bend into a tighter radius then I took my time using plenty of screws and glue between the layers of ply to fasten everything together.

mini-mad Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 13 July 2012 Location: london Status: Offline Points: 6861	Post Options Post Reply Quote mini-mad Report Post Thanks(0) Quote Reply Posted: 08 October 2014 at 7:36pm
	Sounds like a lot of hard work wen you could have just bought 3mil. Oh well if its all you have or you have days on end to spend building them, Go for it!!
	If it sounds like a gorilla is trying to escape, turn it down.

njw Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 26 March 2010 Location: S. Wales Status: Offline Points: 2700	Post Options Post Reply Quote njw Report Post Thanks(0) Quote Reply Posted: 08 October 2014 at 8:10pm
	Yep! 3mm would have been far more preferable, but I already had two sheets of 6mm sitting about doing nothing so thought I would put it to use.

DaveMarks Members Profile Send Private Message Find Members Posts Add to Buddy List New Member Joined: 08 October 2014 Location: North Devon Status: Offline Points: 3	Post Options Post Reply Quote DaveMarks Report Post Thanks(0) Quote Reply Posted: 08 October 2014 at 8:21pm
	It's all good , got a sheet of 3mm on the way , cheers guys

djyves Members Profile Send Private Message Find Members Posts Add to Buddy List Young Croc Joined: 06 April 2009 Location: the Netherlands Status: Offline Points: 564	Post Options Post Reply Quote djyves Report Post Thanks(0) Quote Reply Posted: 08 October 2014 at 11:37pm
	I used 8mm "bending plywood" for mine. It's plywood with all the veins/grains in the same direction.
	"If brute force doesn't work, you're just not using enough!"

Neurosub Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 22 December 2010 Location: Canada Status: Offline Points: 23	Post Options Post Reply Quote Neurosub Report Post Thanks(0) Quote Reply Posted: 27 May 2015 at 9:48pm
	I have 2x HD215 and have been using the kappa pro lf2 for years. They sound good. I have them crossed at 120 ish to avoid the definition loss above that. (honking) 85 cut off below. Cheap too - just ordered 4 @ 160 each here in Canada. Yesterday.