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HD15 Hornresp modellling |
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Timber_MG 
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Joined: 27 March 2004 Location: South Africa Status: Offline Points: 1454 |
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 Posted: 12 August 2005 at 5:00pm |
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A stack of four on the ground would be modelled as a single cab in 1/8th space.
Have a go at a different driver perhaps? |
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Dave Slater
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Joined: 28 February 2004 Location: United Kingdom Status: Offline Points: 373 |
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Posted: 12 September 2005 at 5:28pm |
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been busying myself with this tonight - bored the missus is out! anyways i figured that the HD215's that Dom and I built have a close enough approximation to the curve using straight sides to allow an approximation of an exponential horn using conical segments i dug out the cad drawings i made and with a bit of working out came up with this :-
@ ceharden i made the ATC the same area as the baffle so the axis is normal to the driver. rotated the other way normal to the throat (and therefore a smaller area) caused no end of spurious crap and a complete loss of the bottom end overall compared to the Rogs plot i think its a passable sim hope that helps |
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Dave Slater
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Joined: 28 February 2004 Location: United Kingdom Status: Offline Points: 373 |
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Posted: 12 September 2005 at 8:41pm |
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thought it would be interesting to compare so assuming that sim is right here's some more drivers:- PD154 PD158 PD1550 P.Audio SD-15 P.Audio P-15N P.Audio SN-15B P.Audio C15-500LF this last one is Rogs fave and clearly it works really well yet the one above it seems to have a reasonable response and that's a Neo driver i'm just wondering what tweaks are nessesary to get them singing properly
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Dave Slater
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Joined: 28 February 2004 Location: United Kingdom Status: Offline Points: 373 |
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Posted: 12 September 2005 at 8:49pm |
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Norty was asking about the Beyma 15LX60 a while back |
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ceharden
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Joined: 05 June 2005 Location: Southampton Status: Offline Points: 11851 |
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Posted: 13 September 2005 at 5:37am |
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@ Dave: You've certainly been busy, good to see some comparisons between drivers.
I've been spending my time (especially last night like you) finalising my own 15" horn design. Will post designs and plots if I get time before leaving for Plasa today. At the moment I'm designing for Kappa 15LF as that's what I've got but will need to upgrade at some point. Seems from my sims that the Kappa gives the best LF extension of all the drivers but the PD's and the like will probably give a harder kick. |
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norty303
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Joined: 18 August 2004 Location: Eastbourne Status: Offline Points: 8800 |
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Posted: 13 September 2005 at 8:02am |
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Can someone copy those pictures into their own thread titled something like 'HD15 Driver Sims' and make it sticky please.
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My laser stuff: Frikkin Lasers
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Dave Slater
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Joined: 28 February 2004 Location: United Kingdom Status: Offline Points: 373 |
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Posted: 13 September 2005 at 12:34pm |
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doing it norty - more sims to follow |
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