Woofers firing into the box question.

DavidA · 06-10-2005, 07:50 PM

I guess I understand the concept of exposing the rear of the woofer and mounting then to fire into the box.

My question is...

Do you then reverse the polarity of the speaker when you do this?

What are the benefits? Are there any?

Thanks.

Gangus2006 · 06-10-2005, 08:22 PM

No, leave wire it up the same, keep the same amount of airspace. Keep everything the same, just mount it backwards.

The reason people do this is because sometimes witht he enclosures they design, its too shallow to fit the basket inside, so they just put the basket outside.

Some woofers have baskets that are too damn cool to hide them!

DavidA · 06-10-2005, 08:38 PM

Cool. I am doing a custom install on a 240sx convertible with two Audiobahn 10" subs with the flame baskets and a Kenwood 1000watt amp to power them off of an Alpine headunit. Then a little neon and he is set to go.

Bumpin' Yota · 06-10-2005, 09:34 PM

well actually if you want to get technical you will need to subtract the volume of air the basket and sub displace from the enclosure if you are designing from scratch to invert mount the sub.

If you have 2 subs baskets out and one sub normal you WILL have to reverse the polarity on the tow sub's whose baskets are out. You want the 3 cones moving in unison at all times.

06-10-2005, 07:50 PM	#1 (permalink)
DavidA Contributing Member Join Date: Apr 2004 Location: Fort Worth, TX Posts: 919	Woofers firing into the box question. I guess I understand the concept of exposing the rear of the woofer and mounting then to fire into the box. My question is... Do you then reverse the polarity of the speaker when you do this? What are the benefits? Are there any? Thanks. __________________ 2002 Stellar Blue 4Runner Sport Edition Cold Air Intake Magnaflow Exhaust Iridium Sparkplugs Kenwood KDC-MP628 Blaupunkt Separates in all of the doors Two RF P2002 amps Kenwood 12" Subwoofer My baby: Pics

06-10-2005, 08:38 PM	#3 (permalink)
DavidA Contributing Member Join Date: Apr 2004 Location: Fort Worth, TX Posts: 919	Cool. I am doing a custom install on a 240sx convertible with two Audiobahn 10" subs with the flame baskets and a Kenwood 1000watt amp to power them off of an Alpine headunit. Then a little neon and he is set to go. __________________ 2002 Stellar Blue 4Runner Sport Edition Cold Air Intake Magnaflow Exhaust Iridium Sparkplugs Kenwood KDC-MP628 Blaupunkt Separates in all of the doors Two RF P2002 amps Kenwood 12" Subwoofer My baby: Pics

06-10-2005, 09:34 PM	#4 (permalink)
Bumpin' Yota Registered User Join Date: Feb 2003 Location: Sarasota, FL Posts: 3,649	well actually if you want to get technical you will need to subtract the volume of air the basket and sub displace from the enclosure if you are designing from scratch to invert mount the sub. If you have 2 subs baskets out and one sub normal you WILL have to reverse the polarity on the tow sub's whose baskets are out. You want the 3 cones moving in unison at all times. __________________ 3vze, 4x4, sr5, 90, auto, LSD 2x dB Drag World Finalist 2003 Nopi Nat. Street B champ 2004 SBN Street C champ 2004 SBN Advncd NW Champ 2004 Former WR Holder in NW. SPL: 159.8db @ 42hz In loving memory of Jamie Riggs 5/15/85 - 10/8/04

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06-10-2005, 08:22 PM	#2 (permalink)
Gangus2006 Banned Join Date: Oct 2004 Location: Fitchburg, MA Posts: 1,111	No, leave wire it up the same, keep the same amount of airspace. Keep everything the same, just mount it backwards. The reason people do this is because sometimes witht he enclosures they design, its too shallow to fit the basket inside, so they just put the basket outside. Some woofers have baskets that are too damn cool to hide them!