BillFitzmaurice.info

hifibob wrote:Oh I forgot.. The electrician just finished up my new service... My Macrotechs are licking their chops.. 600 volts @ 400 amps should supply some healthy power for BFM rig!!

Now that's a beautiful thing. You've even got your own step-down transformer. Shiny new breaker panels and everything! Congrats!

Now that gives you the 1.2 Gigawatts you need!

Hifibob, what kind of music will be played at your club?

(please say techno)

osse wrote:Hifibob, what kind of music will be played at your club?

(please say techno)

Bob said he's trying to get Carl Cox in so it seems likely you'll be getting some techno through that badman setup...!

Yup, exactly.. This club will primarily be playing EDM..

Ok fellas, I'm about to weld up the cage that will hold the DR's.. I need some advice on placement and height of these.. They will be located on the outer corners of the stage which is 25' wide. My ceiling height is 14' 3" so they can go fairly high. Here's a few pics to get a better understanding.





Am I better off getting them high up to the ceiling and keeping them curved or locating them lower on the stage and keeping them straight?

Assuming I keep them high, do I aim the top speaker in the array at the rear of the dance floor or is it more important to aim the lowest cab to the dancers closer to the stage?

HF more than anything else gets chewed up by running into objects like people.

Put it this way, if you had just one cab a side, the bottom of that cab ideally is 6 foot or so above the dance floor in your case.

But you have 3 a side, so the top cab should have it's face perpendicular to the floor, the cabs underneath that in a J (so the middle cab is roughly aiming between 1/3 and 2/3 to the back) leaving the bottom cab aiming towards in front of the dance floor to about 1/3 to 1/2 way back (Melded array for this cab if applicable).

Imagine equal space, say 2", between each cab bottom and top, working your way down and see how that splay works out for the bottom 2 cabs and coverage.

That should work out with your ceiling height and distance above dance floor height.
No brainer, adjust downwards (and mess with the lower cab angles again) if it doesn't fit lol...

Grant Bunter wrote:HF more than anything else gets chewed up by running into objects like people.

Put it this way, if you had just one cab a side, the bottom of that cab ideally is 6 foot or so above the dance floor in your case.

But you have 3 a side, so the top cab should have it's face perpendicular to the floor, the cabs underneath that in a J (so the middle cab is roughly aiming between 1/3 and 2/3 to the back) leaving the bottom cab aiming towards in front of the dance floor to about 1/3 to 1/2 way back (Melded array for this cab if applicable).

Imagine equal space, say 2", between each cab bottom and top, working your way down and see how that splay works out for the bottom 2 cabs and coverage.

That should work out with your ceiling height and distance above dance floor height.
No brainer, adjust downwards (and mess with the lower cab angles again) if it doesn't fit lol...

Thanks for the tips Grant.. I'll have to figure out a temporary method to hold the cabs and test with.. I'm building a steel cage to hold the DR's so adjustments cant be made once its welded up.. The cage will be kind of artistic and will be mounted to the stage below.. This will solve the problem of not "hanging" the speakers and worrying about the inspectors.. Besides this ceiling is not to friendly to hang from..

hifibob wrote:Am I better off getting them high up to the ceiling

That. Aim the top speaker at the back of the room, tilt the others as required.

Bill Fitzmaurice wrote:

hifibob wrote:Am I better off getting them high up to the ceiling

That. Aim the top speaker at the back of the room, tilt the others as required.

Ok thanks Bill.. So top cab will be slightly tilted down, basically aiming it at the dancers at the rear of the dance floor? Also should I toe the cabs in slightly at the center of the dance floor or just fire them perfectly straight out?

hifibob wrote: So top cab will be slightly tilted down, basically aiming it at the dancers at the rear of the dance floor?

Aimed at the furthest point in the room where you want it heard

Also should I toe the cabs in slightly at the center of the dance floor or just fire them perfectly straight out?

With melded arrays I doubt toe in is required. In some rooms they actually give the best coverage toe'd out a bit.

Bill Fitzmaurice wrote:

hifibob wrote: So top cab will be slightly tilted down, basically aiming it at the dancers at the rear of the dance floor?

Aimed at the furthest point in the room where you want it heard

Also should I toe the cabs in slightly at the center of the dance floor or just fire them perfectly straight out?

With melded arrays I doubt toe in is required. In some rooms they actually give the best coverage toe'd out a bit.

Thanks Bill.. I'll have to try experimenting with the toe, even once the cage is all welded up i can easily rotate that, it was just the aiming of the cabs I cant change once welded up..

I would heavily treat that back wall somehow. nothing worse than ye old slapback when you are trying to dj.

hifibob wrote:Yup, exactly.. This club will primarily be playing EDM..

I'm gonna correct you on this point here, you will be playing just regular old dance music, the 'electronic' bit has been entirely superfluous since the 70s...



Ugh, Boston clubbers ain't gonna know what hit 'em at this joint... I do sincerely hope they appreciate it, I know I'd kill to be able to party at a club with a legitimately killer sound system with someone running it that actually understands what quality is.

...I just have to make do on those nights when I roll my own BFM kit out.

sine143 wrote:I would heavily treat that back wall somehow. nothing worse than ye old slapback when you are trying to dj.

I agree with this; it's important. We won't get into "total room treatments" and such, but at least that square, back wall should be treated. Thick, black fabric hung like drapes would work. The bottom two DRs that fire into the crowd won't be too much of a problem since the bodies will absorb much of the HF. But that top DR aimed at the back of the room will bounce off that back wall.

I am interested in seeing the cage you're welding up. Being this is a fixed installation you can make it as bomb-proof as possible since you'll never have to move it.