HD 15 hole size? PD158

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   HD 15 hole size.
Does any one know what size hole I should cut out for the PD 158.
The cabs will be made next week and then speakers to fit come later.
This means I would like to cut the hole for the driver but not sure of the size.
Does any one know where is the best place to postion the speaker plug in the cabnet?
regards to you all PBanyer

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philip banyer Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 27 October 2004 Location: Switzerland Status: Offline Points: 19	Post Options Post Reply Quote philip banyer Report Post Thanks(0) Quote Reply Topic: HD 15 hole size? PD158 Posted: 01 November 2004 at 9:26pm
	HD 15 hole size. Does any one know what size hole I should cut out for the PD 158. The cabs will be made next week and then speakers to fit come later. This means I would like to cut the hole for the driver but not sure of the size. Does any one know where is the best place to postion the speaker plug in the cabnet? regards to you all PBanyer

norty303 Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 18 August 2004 Location: Eastbourne Status: Offline Points: 8800	Post Options Post Reply Quote norty303 Report Post Thanks(0) Quote Reply Posted: 01 November 2004 at 9:56pm
	look at the PD website, you should be able to get the dimensions there
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philip banyer Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 27 October 2004 Location: Switzerland Status: Offline Points: 19	Post Options Post Reply Quote philip banyer Report Post Thanks(0) Quote Reply Posted: 01 November 2004 at 10:00pm
	Yes I just double checked for the size on web site cant seem to find it

Lasse Lukkari Members Profile Send Private Message Find Members Posts Add to Buddy List Young Croc Joined: 09 March 2004 Location: Finland Status: Offline Points: 615	Post Options Post Reply Quote Lasse Lukkari Report Post Thanks(0) Quote Reply Posted: 01 November 2004 at 10:05pm
	http://www.papl.co.uk/asps/uploads/super/48.pdf found from the website

davey t Members Profile Send Private Message Find Members Posts Add to Buddy List Young Croc Joined: 11 March 2004 Location: Bristol UK Status: Offline Points: 1428	Post Options Post Reply Quote davey t Report Post Thanks(0) Quote Reply Posted: 02 November 2004 at 1:33pm
	WARNING I used PD158's, they're great, but be careful where you drill your hole for your t-nuts! remember that the PD driver has a hexagonal surround, not round. Therefore, they only fit in one way. You probably want to wait til they come. I didn't, and now i have to hold them in with screws which keep on comming loose. goodluck.

norty303 Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 18 August 2004 Location: Eastbourne Status: Offline Points: 8800	Post Options Post Reply Quote norty303 Report Post Thanks(0) Quote Reply Posted: 02 November 2004 at 2:50pm
	Dom uses speaker clamps on his, although when he removed his PD154's he found one had slipped and torn the surround where it had been hitting the edge of the hole in the baffle. I still think it's a good way of fixing them, I'm just going to add a couple of locating pins to sit the driver on to stop any slippage should the same thing occur to me.
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loophole Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 02 March 2004 Status: Offline Points: 469	Post Options Post Reply Quote loophole Report Post Thanks(0) Quote Reply Posted: 02 November 2004 at 3:02pm
	i always roundover or chamfer the inner edge of the baffle hole with a router, that way you can use a small enough hole to have plenty of room for the t-nuts without the surround rubbing against the edge

philip banyer Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 27 October 2004 Location: Switzerland Status: Offline Points: 19	Post Options Post Reply Quote philip banyer Report Post Thanks(0) Quote Reply Posted: 02 November 2004 at 9:46pm
	Thanks for the replies The router idea with a smaller hole is good so the tee nuts have place. + More question Do I need to cut the frequencies less than 40 Hz is there any frequencies I need to cut out? Due to dips or peaks with HD 15 with PD158 to help the sound. Also should I put a piece of Fiberglas�s in the back of the cabinet for the speaker

Andrew Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 10 March 2004 Location: United Kingdom Status: Offline Points: 669	Post Options Post Reply Quote Andrew Report Post Thanks(0) Quote Reply Posted: 02 November 2004 at 10:03pm
	Yes, cut LF as the horn gets unloaded at low frequencies. The peak will vary on the driver. My P Audio units show a negligible peak, nothing as severe as the Eminence plot, I only measured about 2dB peak. Anyone measured PD158? Anyone else built PD158 HD15 in UK? Put fibreglass behind the curved section.

Dom Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 25 February 2004 Location: United Kingdom Status: Offline Points: 1700	Post Options Post Reply Quote Dom Report Post Thanks(0) Quote Reply Posted: 02 November 2004 at 10:16pm
	Still not sure how that driver worked loose, never happened in 2 1/2 years of caning them every weekend... I'd definately wait until you get the driver. Space is dead tight in the back of an HD15, and there really is no way to put the t nuts in once you've built the cab. Locating pins and clamps sounds like a great idea... The downside with clamps in any front loaded horn is making sure the driver lines up with baffle spot on... Drop it over the pins and clamp it down - no problems...

philip banyer Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 27 October 2004 Location: Switzerland Status: Offline Points: 19	Post Options Post Reply Quote philip banyer Report Post Thanks(0) Quote Reply Posted: 02 November 2004 at 10:43pm
	Does any one know if the Europower EP2500 amp would be any good to power 4 HD 15 The amp would be used 1or 2 times a year not often. 4 ohm bridge mode for the 4 Pd 158 Amp rated at 2.4kw Very low cost amp is rubbish or ok. Thanks for all your help

norty303 Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 18 August 2004 Location: Eastbourne Status: Offline Points: 8800	Post Options Post Reply Quote norty303 Report Post Thanks(0) Quote Reply Posted: 02 November 2004 at 11:11pm
	How are you going to get a 4ohm load out of it bridged tho? The best you could do would be running 750w a side @ 4ohms into each pair which isn't really enough. or you could bridge the amp and run the pairs serial then parallel the pairs for 8ohm but thats only about the same power. The EP2500 won't bridge to 2ohms. Get 2 EP2500 and bridge them, that'll give the sort of power you're after. What's your reason for going for the 158 over the 154, it seems like you're going to struggle to power them? I've had the same problem and am going with the t.amp TA2400 which gives 1200w a side into 4 ohms andis the same price as the EP2500. I'm running the 154
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