Need help for subwoofer built - Page 3
Gear mentioned in this thread:
Using 2 large rectangular shaped braces with 4 times 8x8 inches windows inside of them and 1 inch thickness with 2 inch thickness between the 8x8 windows. while the distance from each window to the sides is one inch.
I need a cubic box of around 22.5 inch per side excluding the double baffle thickness of another 3/4 inch to achieve a Q of 0.7. that will take into account the volume of the drive and bracing. to be honest I might add some minor additional bracing if I can.
is bracing of 1 inch thickness a problem, for example: does a bar of 22 inch x1x1 be of any problem?? I might not use this, but just questioning if this will cause any problem. my thought of rectangular braces are not like this, but they do have 1 inch dimensions in certain areas.
another question: for the large windowed braces, can I use as well a 3/4 inch panels?
Edited by goldorak_20 - 10/14/13 at 10:23am
Bracing will include two large panels of 4 windows within them and additional bracing to connect these from the sides and back.
I think I have lost my calculations for a Q of 0.7 and might add some polyfill.
Hi Guys, I just had a call with my carpenter, and he is going to make for me the bracing similar to the box sold at partsexpress, the only difference is that he is going to put two horizontal and two vertical wood blocks instead of one by two (so more then the parts express).
But is 3/4 inch wood fine. He is saying that the Italian wood he is using is very good, and that he can take in and out a screw from it several times without ruining the screw hole. he doesn't have 1 inch wood, the other alternative is using 2x3/4 wood for bracing but I felt that this will eat a lot of space inside. is it necessary to use 1.5 inch bracing inside or is 3/4 inch wood plates fine?
please send the answer soon, as he might start on the wood tomorrow.
I was looking at the one that parts express has and they mention that the Subwoofer recess: 1/2" (larger then 1 cm) while I asked that it is made just exactly 1 cm as per the exact dimension from the dayton schematic, should I have asked that the recess be more then 1 cm? will this affect any sound quality or output?
Sorry for asking too many questions, first real DIY
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Saw this thread Im also in a similar situation. I have a 12x12x12 inch subwoofer box with 8 inch driver frok KEF. Is this safe to check in luggade in flight . I also have 5 small satellites from KEF (eggs). Has any body packed such a home theater system in flight before ? Mine comes to 18 Kgs total
sorry for not replying earlier, I have just seen your post. If you already put them in luggage then it is done. If not, I will tell you, I have many times put subwoofer, amplifiers, etc in luggage (even a panasonic AE4000) projector, and in long flights of more then 18 hours (several stops), and up till now, It was fine with very minor cosmetics happening (not worth mentioning).
the large items cannot go into hand luggage, they have to be checked in. And you have to be diligent in packing.
I get a lot of duct taping, bubble rapping, and additional cartoons, and in my packing of the dayton I got "polycarbonate" sheets (if i recall correctly) these are non breakable plastic sheets (1.8 mm). the subwoofer was already in two boxes inside each other, and I reinforced the boxes with duct tape, and put the polycarboante sheets all around between the first box and the second box, and then I reinforced the whole external box with duct tape and transparent tape. and even put a travel belt around the box and taped it in certain places, and I arranged the taping in a way so that the security at the airport can open the box without damaging the whole taping thing. and they did open it but it arrived safe. I did use a lot of labels on the box inside and outside for my address in case something went wrong, but be carefull not to put them in a very open way, it is better to conceal the address a little.
in an earlier flight, I did get an energy subwoofer eswv10 around 18 kg, and I did use only the box that it came in with a lot of duct tape, additional pieces of cartoon inside the box, and bubble rapping inside. It did arrive safe but it had minor hit in the wood, not noticeable.
i hope this helps you or other people here.