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| Car Audio Do you live in your car? Then you need to be able to listen to some high-quality music. |
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09-16-2006, 06:50 PM
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#1 | |
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AF Enthusiast
 
Join Date: May 2004
Location: Steamboat, Colorado
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bandpass subs sharing juice?
so a few days ago i blew the inline fuse for my power wire and since no one had an 80 amp fuse to replace it with i just bought a new amp wiring kit (it was old anyway). I also figured since i was doing this, i'll bridge the two channels on my amp to one of my subs (i have 2 in a bandpass) so one would get a more SUV suitable 440 watts instead of both getting a wussy 145. I hooked everything up and turned on the truck and, what? both subs still firing! I'm not complaining, but i don't know why both are still firing. (the speaker wire for the other sub isn't hooked up to the amp at all). are subs in bandpass boxes wired together or something? I didn't have this box built, someone gave it to me for free.
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1998 Chevrolet Blazer LT (95% stock)  Pioneer AVH-P7500 DVD receiver 12" Alpine Type-R in a sealed box PIAA Super Plasmas GT-X bulbs PIAA Xtreme White bulbs K & N drop-in filter   "Melo" and "AI". Enough said.
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09-16-2006, 07:08 PM
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#2 | |
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AF Enthusiast
Join Date: Mar 2005
Location: stone mountain, Georgia
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Re: bandpass subs sharing juice?
uhh.. no they arent connected. the other sub is reflexing...passive radiating. you say you have a bandpass box right? immense pressures are being applied to both woofers. the unconnected woofer is just reflexing
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 car audio guru... 
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09-17-2006, 04:16 PM
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#3 | ||
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AF Enthusiast
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Re: bandpass subs sharing juice?
Quote:
__________________
1998 Chevrolet Blazer LT (95% stock) Pioneer AVH-P7500 DVD receiver 12" Alpine Type-R in a sealed box PIAA Super Plasmas GT-X bulbs PIAA Xtreme White bulbs K & N drop-in filter "Melo" and "AI". Enough said.
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09-17-2006, 10:42 PM
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#4 | |
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AF Enthusiast
Join Date: Aug 2004
Location: mechanicsville, Maryland
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Re: bandpass subs sharing juice?
Its a concept bein used by quite a few companys now, theres companies selling purpose built passive radiators.
http://www.bostonacoustics.com/car/c...&family_id=108 http://www.diysubwoofers.org/prd/ Infinity's powered setups like the basslink, use the same concept. Its supposed to give you around 3db gain.
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Cant remember who posted it but if you see it give yourself credit Don't ever look at cars as just imports or domestics. Just because a car is made in a certain country doesn't mean that it is anything like another car from that country. An example of this is Mitsubishi reliability, just because they are Japanese doesn't mean that they are as reliable as a Honda or Toyota. Cardomain |
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09-18-2006, 07:06 AM
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#5 | |
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Audio Guy
 Join Date: Mar 2002
Location: huntsville, Alabama
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Re: bandpass subs sharing juice?
a passive radiator is a VERY old concept ...... just be careful, bandpass boxes are very picky about sizes and ports. You may be damaging the other speaker too.
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09-19-2006, 01:50 PM
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#6 | ||
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AF Enthusiast
Join Date: May 2004
Location: Steamboat, Colorado
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Re: bandpass subs sharing juice?
Quote:
__________________
1998 Chevrolet Blazer LT (95% stock) Pioneer AVH-P7500 DVD receiver 12" Alpine Type-R in a sealed box PIAA Super Plasmas GT-X bulbs PIAA Xtreme White bulbs K & N drop-in filter "Melo" and "AI". Enough said.
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