Im building a sealed box for 2 10" Infinity Kappa Perfects 10.1D and their each goin to have there own chamber of .6cuft (after displacement) like their website says. But how its looking im going to have to increase the volume or their will be some complications when putting the subs in. Or would it be fine if I just made it a single chamber? Well heres my question the mounting depth is 6" so how far should the magnet be away from the back wall of the enclosure?
Replies (8)
uochronos on 09/9/2004 23:26:05
the magnet should be a minum of 2 inch from the rear of the chamber unless you absolutly cant do that...as for seperate or single chamber seperate makes it so sound waves dont interfere with each other in the box. but really either way is acceptable
P0werLifter on 09/9/2004 23:44:26
A chamber for each subwoofer would be optimal, but it is not nessesary if each subwoofer is running on the same wattag. Like Chronos has said, its mainly to seperate the soundwaves so they dont interfere with eachother but as long as they are ran at the same wattage, and are in phase, you won have any problems =)
As far as the magnet spacing...2" unless you dont have a choice.
*Jason
swez on 09/10/2004 09:29:20
You can go a little larger and get more deep bass from these subs as well. Nothing wrong with a .75 cf/chamber box here... maybe a tad less power handling is all.
http://manuals.harman.com/INF/CAR/Boxes%20and%20Parameters/P10.1d_f.pdf
About using a divider wall... if you don't use one, both subs share a common air space and more turbulance inside the box. Also, the divider acts like a brace to make the box flex less.
Finally, if 1 sub goes out in a shared air space design, the remaining sub will now operate in a box that is 2X the recommended air space. The remaining sub will hit max excursion much sooner and likely to fail in short order as well. That is why I always recommend a divider panel in sealed or ported designs.
Swez
ryan on 09/11/2004 00:20:48
Im taking your advice swez and im making it close to .75cuft. but I have one more ? for now. Since im having the subs in a seperate chamber how should i wire them in parallel. a) with a terminal inside the box on the divider wall and connect the wires on that and then have one terminal outside the box where the wires would go to the amp b) have 2 terminals on the outside of the box and connect them in parallel on the outside terminals or c) other option
swez on 09/11/2004 07:42:07
"A" would be my choice if you plan to run them off a single channel MONO amp. Just drill a small hole in the center divivder board, run wire to both subs as mentioned and seal the wires/hole with silicone.
If you had a 2 channel amp and ran 1 sub per channel, then a terminal cup to each sub would be correct.
Swez
ryan on 09/11/2004 11:21:38
Swez instead of using silicone could I use that wood glue that comes in the tube to seal up the hole(cant think of what its called)? And thank you everyone for your help.
swez on 09/11/2004 19:42:45
Liquid Nails will work fine... good for sealing the box as well for an ir tight fit. It's a bit messy to clean up afterwards though. Very tacky and mineral spirits or Acetone will clean well.
I prefer latex caulks as they are water clean and set up well over night. No fumes, outgassing problems and very cheap too. I like it because it can tooled well with a wet finger and clean up is a breeze... soap and water, a wet rag for glops. Not messy like silicone or Liquid Nails.
Swez
ryan2 on 09/21/2004 12:12:43
I'll be getting his wiring and carpet today so i'll be able to finish his box. I cant wait. Then we just need to order his amp and we'll be good to go.
Replies (8)
uochronos on 09/9/2004 23:26:05
the magnet should be a minum of 2 inch from the rear of the chamber unless you absolutly cant do that...as for seperate or single chamber seperate makes it so sound waves dont interfere with each other in the box. but really either way is acceptable
P0werLifter on 09/9/2004 23:44:26
A chamber for each subwoofer would be optimal, but it is not nessesary if each subwoofer is running on the same wattag. Like Chronos has said, its mainly to seperate the soundwaves so they dont interfere with eachother but as long as they are ran at the same wattage, and are in phase, you won have any problems =)
As far as the magnet spacing...2" unless you dont have a choice.
*Jason
swez on 09/10/2004 09:29:20
You can go a little larger and get more deep bass from these subs as well. Nothing wrong with a .75 cf/chamber box here... maybe a tad less power handling is all.
http://manuals.harman.com/INF/CAR/Boxes%20and%20Parameters/P10.1d_f.pdf
About using a divider wall... if you don't use one, both subs share a common air space and more turbulance inside the box. Also, the divider acts like a brace to make the box flex less.
Finally, if 1 sub goes out in a shared air space design, the remaining sub will now operate in a box that is 2X the recommended air space. The remaining sub will hit max excursion much sooner and likely to fail in short order as well. That is why I always recommend a divider panel in sealed or ported designs.
Swez
ryan on 09/11/2004 00:20:48
Im taking your advice swez and im making it close to .75cuft. but I have one more ? for now. Since im having the subs in a seperate chamber how should i wire them in parallel. a) with a terminal inside the box on the divider wall and connect the wires on that and then have one terminal outside the box where the wires would go to the amp b) have 2 terminals on the outside of the box and connect them in parallel on the outside terminals or c) other option
swez on 09/11/2004 07:42:07
"A" would be my choice if you plan to run them off a single channel MONO amp. Just drill a small hole in the center divivder board, run wire to both subs as mentioned and seal the wires/hole with silicone.
If you had a 2 channel amp and ran 1 sub per channel, then a terminal cup to each sub would be correct.
Swez
ryan on 09/11/2004 11:21:38
Swez instead of using silicone could I use that wood glue that comes in the tube to seal up the hole(cant think of what its called)? And thank you everyone for your help.
swez on 09/11/2004 19:42:45
Liquid Nails will work fine... good for sealing the box as well for an ir tight fit. It's a bit messy to clean up afterwards though. Very tacky and mineral spirits or Acetone will clean well.
I prefer latex caulks as they are water clean and set up well over night. No fumes, outgassing problems and very cheap too. I like it because it can tooled well with a wet finger and clean up is a breeze... soap and water, a wet rag for glops. Not messy like silicone or Liquid Nails.
Swez
ryan2 on 09/21/2004 12:12:43
I'll be getting his wiring and carpet today so i'll be able to finish his box. I cant wait. Then we just need to order his amp and we'll be good to go.
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