Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: Thisismyname on December 21, 2025, 01:11:52 pm
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I like the beam blocker, but it doesn't allow the speaker to be flush with the baffle. It fits over 2 speaker mounting screws in between the speaker and baffle.
The beam blocker mounting bar is 1/16" thick and 1 ply of the 9 ply baltic birch is 1/16" thick. I'd like to remove 1 ply in a small enough area so that the beam blocker bar sits in that 1/16" deep pocket so it can be used and still have the speaker flush with the baffle.
I hope this makes sense.
What's the best method to remove a single ply in a small area around 2 speaker mounts?
I'm open to better ideas as well.
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Small router if you have the maneuvering room. Otherwise, a hammer and sharp chisel.
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In Rick Fass' video about Beam Blocker installation (sponsored by Weber within the product description), he doesn't bother with gouging it out . . .
My sense is that I were building a baffle, I'd probably rout it. If the baffle was installed, probably not. If you're worried about causing the speaker frame to warp, you could always put a washer or two in front of the other two mounting holes to even it up.
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In Rick Fass' video about Beam Blocker installation (sponsored by Weber within the product description), he doesn't bother with gouging it out . . .
My sense is that I were building a baffle, I'd probably rout it. If the baffle was installed, probably not. If you're worried about causing the speaker frame to warp, you could always put a washer or two in front of the other two mounting holes to even it up.
That's a good idea, but I'd really like the speaker to be able to vibrate the baffle in the traditional way for whatever it's worth.
I might try it anyway, but I'll probably put some foam or rubber in the gaps between the baffle and speaker to prevent any sound waves from sneaking around the speaker and causing unintended phase canceling.
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prevent any sound waves from sneaking around the speaker and causing unintended phase canceling.
well n good til that sound hits the walls, patrons bald heads.....then all bets are off :icon_biggrin:
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I just hot glued two stacked dust caps to a stiff cardboard backer and glued that to the grill cloth directly on my main gigging amp. Same idea, no need to modify the baffle.
Be prepared to see some utterly confused faces from sound guys that try to mic your amp and use the flashlight trick to place the mic.
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I just hot glued two stacked dust caps to a stiff cardboard backer and glued that to the grill cloth directly on my main gigging amp. Same idea, no need to modify the baffle.
Be prepared to see some utterly confused faces from sound guys that try to mic your amp and use the flashlight trick to place the mic.
Interesting. I might have to try that!