PD2450

sorry, haven't done any detailed measurements.
nice forum quote from Colin Oood who played on it in2004, outside, in spain...
"Crystal clear with a kick like a mule on PCP... and the 6K supersubs under the stage really did what they said on the tin; those f****** roll off at 17Hz when aligned correctly. I'm not exaggerating when I say that you could have a (loud!) conversation right up againstthe stacks, yet 150m away the sound was still all-enveloping and you could still feel each bass drum kick you in the chest. Amazingly there was NO EQ on the system at all; just crossovers and amplifiers, and it could easily have catered for 10 times the amount of people who attended. the on stage sound was similarly exellent, also being opus. Thanks Jodie, Steve, Valerie and all the opus crew - if we ever get  a major world tour I know who's supplying our sound!"
www.isratrance.com  forum
Needed a hell of a clean afterwoods! 4 days & nights in a desert.
found someone asleep in it at one point, still running!

use silicone instead of glue, and you could assemble on site, & dismantle
This one moves in 4 pieces, 2 half horns, & 2 'cartidges'. still fills a large transit.

Pretty cool looking, the blue lights are an interesting touch. Just curious, how heavy is one of those monsters?

Opus! they look cool, but please tell me there is more bracing than what's in the sketch's?

wahay! they're done!
S U P U R B.
Very quick, low & accurate. this is a stunning driver. I was a bit worried that the smaller box (compared to the huge double 24) would mean it would lose the lowest frequencies, but it measures superbly flat from 30-80Hz, is only slightly down at 20Hz, and sounds surprisingly tight at the higher bass frequencies. No equalisation required at all. Designed slighly deeper than the double 15's it is to work with, so the driver time allignment is done physically by lining up the rears of the boxes (2450 is a physically very deep cone). eezy peezy to build, just need a dustpan & brush to bang the screws in.





Having all those extra frequencies really makes a more natural sounding sound. they don't SOUND really loud, just really lush (not that they're quiet).
Also, good news today that PD will have my 4ohm cones finnished very soon, so i'll be able to get some proper ampage into the boxes.
The funny bass setup above is something I've been working on too. Absolutely no bass between 40-80 Hz can be heard out at the sides of the stage. lots of info to follow soon.



Edited by opus jody - 28 July 2007 at 12:46am

You can't see it in the pictures, but there is considerable support that was put in after the box building bit, so all the main attachment points for the driver are braced to the rear of the box. that adds support to the 14mm of wood the whole driver sits on. Seems rigid enough. I will check it in a few months though - you might be right!