Re: Build Log. Compact Home Cinema Speakers and Sub. Semi-Pro-Fi. "From The Ashes"



I didn't expect it to take as much time as this did. Not even "finished" yet and I probably have a full 8 hours of labor per speaker all together here. All the little details add up. However, I'm really happy with the results. The removable baffles are very useful and I'm probably going to leave the crossover just wire nutted up for awhile so I can make changes if I want to.
The crossovers are basically just held in place with the dampening material which is this semi-stiff poly stuff I found at an upholstery supply house in the scrap bins. (they gave me what would easily have costed $25 to buy the same "quantity" at a hobby store for just $10). I don't have any acoustic reason that I chose this particular material to use as the internal dampening. It's just something I found and decided I wanted to try because it seemed like it would be easy to work with. Turns out it's very handy because it holds a shape like foam (springy/spongy behavior) but also sort of "clings" to the wood grain and itself such that all I had to do was lodge the pieces in there and it all holds itself in place. I can make adjustments to the amount of stuffing easily with this and the crossover is actually held snugly enough by this stuff "pinching" it into place that I can invert the speakers without anything moving.
Against my initial judgement and out of haste I did not use any sort of gasket material anywhere. Everything is precise enough and the fastening methods strong enough (tweeter is 5-screw, woofer is held on by socket drive 10-32 machine screws into T-nuts, front baffle has 6X 10-32 socket drive screws with wide washers, rear has 4 of the same) that everything sealed up nicely without.
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Forgot about the holiday so the sub exchange is still waiting on my being able to get a-hold of PE. Hopefully I'll remember to call them first thing in the morning.
I didn't expect it to take as much time as this did. Not even "finished" yet and I probably have a full 8 hours of labor per speaker all together here. All the little details add up. However, I'm really happy with the results. The removable baffles are very useful and I'm probably going to leave the crossover just wire nutted up for awhile so I can make changes if I want to.
The crossovers are basically just held in place with the dampening material which is this semi-stiff poly stuff I found at an upholstery supply house in the scrap bins. (they gave me what would easily have costed $25 to buy the same "quantity" at a hobby store for just $10). I don't have any acoustic reason that I chose this particular material to use as the internal dampening. It's just something I found and decided I wanted to try because it seemed like it would be easy to work with. Turns out it's very handy because it holds a shape like foam (springy/spongy behavior) but also sort of "clings" to the wood grain and itself such that all I had to do was lodge the pieces in there and it all holds itself in place. I can make adjustments to the amount of stuffing easily with this and the crossover is actually held snugly enough by this stuff "pinching" it into place that I can invert the speakers without anything moving.
Against my initial judgement and out of haste I did not use any sort of gasket material anywhere. Everything is precise enough and the fastening methods strong enough (tweeter is 5-screw, woofer is held on by socket drive 10-32 machine screws into T-nuts, front baffle has 6X 10-32 socket drive screws with wide washers, rear has 4 of the same) that everything sealed up nicely without.
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Forgot about the holiday so the sub exchange is still waiting on my being able to get a-hold of PE. Hopefully I'll remember to call them first thing in the morning.
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