XM15 WITH B&C 15NDL76

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   HI, I'' VE RECENTLY BUILT TWO XM15s LOADED WITH B&C PK40 DRIVER AND A B&C DE500 COMP MOUNTED ON 18SOUND 1086 HORNS.I''M PLEASED BY THE WAY THEY SOUND BUT LOOKING AT THE SPECS OF NDL76 DRIVERI THINK THEY WOULD SOUND MUCH DEEPER AND LOUNDER.HAS ANYONE TRIED IT OR ITS NOT WORTH REPLACING THEM?

THANKS..

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nikolas03 Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 04 October 2009 Location: greece Status: Offline Points: 71	Post Options Post Reply Quote nikolas03 Report Post Thanks(0) Quote Reply Topic: XM15 WITH B&C 15NDL76 Posted: 14 October 2009 at 11:37pm
	HI, I'' VE RECENTLY BUILT TWO XM15s LOADED WITH B&C PK40 DRIVER AND A B&C DE500 COMP MOUNTED ON 18SOUND 1086 HORNS.I''M PLEASED BY THE WAY THEY SOUND BUT LOOKING AT THE SPECS OF NDL76 DRIVERI THINK THEY WOULD SOUND MUCH DEEPER AND LOUNDER.HAS ANYONE TRIED IT OR ITS NOT WORTH REPLACING THEM? THANKS..

Peter Jan Members Profile Send Private Message Find Members Posts Add to Buddy List Young Croc Joined: 16 December 2008 Location: Belgium Status: Offline Points: 1019	Post Options Post Reply Quote Peter Jan Report Post Thanks(0) Quote Reply Posted: 16 October 2009 at 6:00pm
	In fact... it doesn't work that way. Speaker cabinets are made for a certain speaker. Another speaker could work better in a cabinet, but most likely not. If another works better, than the original speaker or cabinet wasn't designed as it should. Anyway, a better result with another speaker is in most cases a matter of dumb beginners luck, not knowledge. The proper way is simulating various speakers in a certain cabinet and tune for the wanted result. One speaker is better suited for lower tuning, another might be better for more SPL but less low extension. Those two words "louder" and "deeper" don't go together as in both more. It's one or the other or a balance between them, not both of them more. In this case, the 15NDL76 could give more SPL if tuned higher, but will certainly not go lower than the 15PK40. The NDL76 is more suited for hornloading or higher BR tuning than the PK40. Qes/Qts values of less than 0,3 are indicators for less low respons/more SPL. The graphs on the B&C website of both those speakers also indicate the less low respons of the NDL76. Edited by Peter Jan - 16 October 2009 at 6:28pm

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: 16 October 2009 at 9:03pm
	I use B&C 15PLB76 in a wedge with the same volume and tuning as the XM15 and they work very nicely...
	"It sounded like a million fire engines chasing ten million ambulances through a war zone and it was played at a volume that made the empty chair beside me bleed."

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: 11851	Post Options Post Reply Quote ceharden Report Post Thanks(0) Quote Reply Posted: 17 October 2009 at 3:00pm
	I use the 15NW76 in wedges which has parameters even more towards the hornloading end of the scale but they are seriously good. Only usable up to about 1.5kHz though and the low end does require EQ to flatten it out if necessary.

nikolas03 Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 04 October 2009 Location: greece Status: Offline Points: 71	Post Options Post Reply Quote nikolas03 Report Post Thanks(0) Quote Reply Posted: 19 October 2009 at 5:03pm
	reading the specs for 15ndl 76 we can see that it has a lower fs,a bigger bl and a lower qts than the p-audio sn15mb.it also has a very good efficiency, so i think it will work better not only from the pk 40 but also the p-audio driver that the site recomended.the b&c 12ndl76 is a very good driver for monitors especially when it's used doubled together with a 1,4 comp so i'll give it a try with the 15inches version..

nikolas03 Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 04 October 2009 Location: greece Status: Offline Points: 71	Post Options Post Reply Quote nikolas03 Report Post Thanks(0) Quote Reply Posted: 19 October 2009 at 5:24pm
	futhermore i wouldn't except the xm15 to drop lower with another driver but adding a hd15 under it i think it could be a very decent wedge for a drummer