The "Official" Crowson Tactile Motion Actuators Thread.
Originally Posted by ereed
I wonder something. Could I just leave the 1/4th inch plywood to metal frame as is and just add 3/4 or 1 inch plywood at 5 diff places for standoffs (for feet and actuator)? I could glue the 3/4 inch plywood or screw it into the 1/4th inch plywood or just have it underneath free standing( I doubt it will move around with weight applied) How would that work vs whole new thick sheet bolted to the metal frame? I'm assuming its the same principle? That will give it 1 inch between actuator and metal frame. Will that work?
If the current sheet is bolted flush to the frame, adding little standoffs should work just fine too. Just glue them on and call it good, nice and simple. As long as it all moves together, it’ll transmit the energy the same. I know it’s a pain lining up all the holes to bolt to the couch frame. I think I did 16 bolts into the frame on my first version that replaced the couch feet and it wasn’t fun.
I wouldn’t recommend putting the MA’s in the middle. You want leverage against the edge of the frame, and if the middle isn’t braced really well the thin 1/4” ply will easily flex losing a lot of the potential energy. You also want to excite as many axes of movement as possible, helping to create a rocking motion by having the MA’s in the front or back, back works better for most as it carries the most weight. I’ve tried them all over, and rear and front work best for me.
Speakers: PSA MTM-210T x2, MTM-210C, MT-110SR x2; Atmos-SVS Satellite x2, DIY Volt-10 x2
Subs: PSA V1801 x2, DIY: 18" RSS460HO, 15" RSS390HO x2, BOSS w/JBL CX1200 x6
MA’s: Crowson Tech x2
Processing: Denon X4200, NU6KDSP, 3KDSP
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Last edited by Sekosche; 08-15-2019 at 08:20 AM.