Grilles for DRs

[DJ Big Ronn]

If I make a small frame, say 1/2" material by 1/2" wide to put inside of the mouth of my 250's, would it effect the performance terribly. If so, what if I were to cut the back side of the frame at a 45 as not to restrict air flow, would this be any better? Thanks.

[Bill Fitzmaurice]

That much restriction won't bother, but David Perry has a better way, and you can now get metal grille from Parts Express.

[bgavin]

The public can buy direct from Penn-Elcom as long as the $50 minimum is met. Penn (probably) manufactures the grille sold by PE, same as so many other parts sold by PE.

[DJ Big Ronn]

I almost ordered those, and I still may, I was trying to find a more economical way since it is just asthetic. I ordered the dcx2496and was going to put the grill money towards a Chauvet vue 3. Awesome light!

[DAVID_L_PERRY]

Took some photos of my DR290's with the grills so you could see what they look like.

http://www.frappr.com/?a=viewphoto&id=1 ... myphotos=1

http://www.frappr.com/?a=viewphoto&id=1 ... id=3233082

You can see here how I extended the horn braces to provide support to the grills:-

http://www.frappr.com/?a=viewphoto&id=1 ... id=3233083

http://www.frappr.com/?a=viewphoto&id=1 ... id=3233081

And this is what I sent to Penn to allow fabrication:-
http://www.frappr.com/?a=viewphoto&id=1 ... id=3262972

Cheers, Dave

[JazzyRick]

Do you use some rubber spacers in there? How are they mounted?

[DAVID_L_PERRY]

Do you use some rubber spacers in there? How are they mounted?

The grills are simply screwed into the ply mounts. The grills do have foam behind and this acts as a slight dampening fixing, but I doubt very much that the grills would vibrate even withou the foam.

http://www.frappr.com/?a=viewphoto&id=1 ... id=3233083

http://www.frappr.com/?a=viewphoto&id=1 ... id=3233081

Dave

[DJ Big Ronn]

Hey David, they have a 61% free air screen is this what you used. I'm looking at the 48 by 48 sheet. That should do all four of my 250's. Before I contact them and based on what yo have purchsed already, what do you think the cost would be on this.

I know that you special ordered the sizes for yours, but I'll cut and bend mine. Is this material easily bendable or do I need to worry about it snapping whan I make my edges. Thanks

[DAVID_L_PERRY]

Hey David, they have a 61% free air screen is this what you used. I'm looking at the 48 by 48 sheet. That should do all four of my 250's. Before I contact them and based on what yo have purchsed already, what do you think the cost would be on this.

I know that you special ordered the sizes for yours, but I'll cut and bend mine. Is this material easily bendable or do I need to worry about it snapping whan I make my edges. Thanks

I think it worked out about £20 per grill folded, painted and shipped, but I will check out my receipts at work tomorrow to see what the cost was for all four grills. I would not even consider cutting and bending them yourself unless you have acces to a proper metel folding machine. No way they could be done by hand.

As far as what void ratio they are, no idea, I just went with the same pattern used on my subs so the cabs looked the same..I certainly cant hear any difference with the grill on/off...

Dave