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Grill clearance recommendations
Grill clearance recommendations
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Old 1st December 2017, 12:52 PM   #1
mark100 is offline mark100  United States
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Default Grill clearance recommendations

Kind of a dumb question....but how much clearance do you usually allow between grill and driver ? xmax + something ? xmech ?

Applications are PA boxes with steel grills, particularly bms18n862 on sub,
rcf mb12n351 on mid

thx, mark
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Old 1st December 2017, 02:42 PM   #2
Smitske96 is offline Smitske96
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For my own TH18 cabs I had 25mm clearence, but there was no clearance needed for the driver itself, but only for the correct mounting of the grill.

I think 40mm should be good (if you want to be sure).
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Old 1st December 2017, 07:05 PM   #3
mark100 is offline mark100  United States
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Thanks ! That's the same zone i'm using.

I've been wondering if the idea of x-mech less a few mm might be a good idea... with the idea of hearing the cone strike the grill before damage occurring.

Pls know I hope none of this ever happens, but I do f... up now and then
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Old 1st December 2017, 07:50 PM   #4
radtech is offline radtech  United States
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I find that this is usually enough clearance between the grill and driver.

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Old 2nd December 2017, 06:35 PM   #5
weltersys is offline weltersys  United States
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Quote:
Originally Posted by mark100 View Post
I've been wondering if the idea of x-mech less a few mm might be a good idea... with the idea of hearing the cone strike the grill before damage occurring.
Bad idea. You probably won't hear the cone striking the grill over the sound of the top cabinets, and the cone hitting a metal grill could cause damage. X-mech on most current PA type sub drivers is the limit of cone movement, not the coil striking the back plate, so should not cause damage.
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Old 4th December 2017, 02:00 PM   #6
mark100 is offline mark100  United States
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Quote:
Originally Posted by weltersys View Post
Bad idea. You probably won't hear the cone striking the grill over the sound of the top cabinets, and the cone hitting a metal grill could cause damage. X-mech on most current PA type sub drivers is the limit of cone movement, not the coil striking the back plate, so should not cause damage.
Thx Art, makes sense.
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