Hi,
Is there any good material for speaker prototyping that can be used instead of wood (products)? Cutting the material should not require a saw but a sharp knife/blade.
Thanks!
Is there any good material for speaker prototyping that can be used instead of wood (products)? Cutting the material should not require a saw but a sharp knife/blade.
Thanks!
You can always glue up cardboard and cut it with a knife. Nice papery resonance. WAF will probably be down a notch or two, though.
I have used cardboard baffles to measure frequency response. It's amazing to listen to a driver play as you set it in the hole, and hear the bass and upper midrange start to increase.
I wouldn't use cardboard or other light material for testing bass out put. And lighter materials may buzz or resonate a bit. I also use blue painters tape. I can tape off basket edges near the tweeter, and hold down the woofer/tweeter a little better. I think you can still get useful measurements in the crossover region... And can experiment with baffle diffraction.
I still prefer a well made, solid baffle for critical measurements, if I can!
I wouldn't use cardboard or other light material for testing bass out put. And lighter materials may buzz or resonate a bit. I also use blue painters tape. I can tape off basket edges near the tweeter, and hold down the woofer/tweeter a little better. I think you can still get useful measurements in the crossover region... And can experiment with baffle diffraction.
I still prefer a well made, solid baffle for critical measurements, if I can!
http://www.diyaudio.com/forums/full-range/223313-foam-core-board-speaker-enclosures-208.html
p.s.: 😀
p.p.s.: felt, carpet.
p.s.: 😀
p.p.s.: felt, carpet.
Last edited:
Hi,
Plasterboard is an option, but why nowadays prototype cabinets ?
If prototyping weird stuff I'd build scale models, not full size.
rgds, sreten.
Plasterboard is an option, but why nowadays prototype cabinets ?
If prototyping weird stuff I'd build scale models, not full size.
rgds, sreten.
Prototyping for mock-up of shape & size, or for proof of concept of sound of design? Regardless of shape, not all materials and "appropriate" associated construction techniques will impart the same sonic signature on the final product.
Xrk and others like to use foam and cardboard for their low cost and ease of fabrication, but how many have made parallel builds with different materials and subjected comparison testing?
Xrk and others like to use foam and cardboard for their low cost and ease of fabrication, but how many have made parallel builds with different materials and subjected comparison testing?
I have also used cardboard and even manila folder stock for upper range experiments. For example I have made a lot of conical waveguides out of manila stock. Its an adequate barrier for high frequencies. This wouldn't be suitable for low frequencies, though.
I could see a couple layers of foam core if you could put a layer of massive goo in between. Something that pours and then sets. As you all have heard me say many times, mass and damping are key parameters for cabinet walls, rather than stiffness.
You might try making a shell out of foam core and then pouring in a half inch of plaster of paris.
I could see a couple layers of foam core if you could put a layer of massive goo in between. Something that pours and then sets. As you all have heard me say many times, mass and damping are key parameters for cabinet walls, rather than stiffness.
You might try making a shell out of foam core and then pouring in a half inch of plaster of paris.
I'd think that plaster of paris wouldn't bond with foam core? Is there anything more gluey that can be poured? Something like polymerizing caulk mixed with sand, lead or glass perls?
Try mixing up some cement ( not concrete ) for cheap but stiff and massive solution.
Cement over foam works really well too.
Cement over foam works really well too.
Last edited:
- Status
- Not open for further replies.