HD15 curve |
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DaveMarks
New Member Joined: 08 October 2014 Location: North Devon Status: Offline Points: 3 |
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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
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stitchy
Young Croc Joined: 07 October 2007 Location: Nottinghamshire Status: Offline Points: 996 |
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you need 3mm ply for the curve, driver wise I would go for the eminence
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mini-mad
Old Croc Joined: 13 July 2012 Location: london Status: Offline Points: 6903 |
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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. |
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If it sounds like a gorilla is trying to escape, turn it down.
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andycw
Young Croc Joined: 17 November 2010 Location: Norfolk Status: Offline Points: 994 |
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People say the Thomann branded 15's are better(and cheaper)than the Kappa. How true that is I don't know.
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No Bass No Fun
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njw
Old Croc Joined: 26 March 2010 Location: S. Wales Status: Offline Points: 2574 |
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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.
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mini-mad
Old Croc Joined: 13 July 2012 Location: london Status: Offline Points: 6903 |
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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!!
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If it sounds like a gorilla is trying to escape, turn it down.
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njw
Old Croc Joined: 26 March 2010 Location: S. Wales Status: Offline Points: 2574 |
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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.
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DaveMarks
New Member Joined: 08 October 2014 Location: North Devon Status: Offline Points: 3 |
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It's all good , got a sheet of 3mm on the way , cheers guys
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djyves
Young Croc Joined: 06 April 2009 Location: the Netherlands Status: Offline Points: 564 |
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I used 8mm "bending plywood" for mine.
It's plywood with all the veins/grains in the same direction.
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"If brute force doesn't work, you're just not using enough!"
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Neurosub
Registered User Joined: 22 December 2010 Location: Canada Status: Offline Points: 23 |
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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. |
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