inverted subs

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kickerstang

Copper - Posts: 180

Joined: April 08, 2004

Location: United States

Posted: May 04, 2004 at 6:44 AM / IP Logged

i've got a pair of dual 2 ohm voice coil 10's. i'm inverting them, i know that i have to reverse the polarity at the amp but how do i wire the voice coils?? my amp is stable down to 1/2 ohm so i'm not worried about the impedance. do i just parellel the coils like normal and then reverse the polarity at the amp?? this was my first guess, but better safe than sorry. i have them in right know but they don't sound right that's why i'm wondering about the voice coil wiring

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stevdart

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Joined: January 24, 2004

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Posted: May 04, 2004 at 10:32 AM / IP Logged

Yeah, I think you're right. Just reverse at the amp or use the 180 switch, one or the other. Maybe the sound sucks because the amp is loaded at a 1/2 ohm impedence and it's noisy.

Try this wiring instead, and see which sounds better.

inverted subs -- posted image.

Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

kickerstang

Copper - Posts: 180

Joined: April 08, 2004

Location: United States

Posted: May 04, 2004 at 2:52 PM / IP Logged

when i had them mount normal (magnets in the box) they slammed and were extremely clear. also i had them firing toward the trunk lid when they were mounted normal and now they are firing into the car while they are inverted.

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thapimpfromchi

Silver - Posts: 616

Joined: July 30, 2003

Location: United States

Posted: May 04, 2004 at 10:09 PM / IP Logged

firing in would make a difference. However, having them inverted made the box a little bigger. are you using a ported box?

1990 Honda Civic HB:

Clarion DXZ545MP H.U.

2- 6.5" Power Acoustik interiors

Diamond Audio 600.1 amp

Diamond Audio 15" M6MKII

Pyramid PB881X 4 CH. Amp

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kickerstang

Copper - Posts: 180

Joined: April 08, 2004

Location: United States

Posted: May 05, 2004 at 6:33 AM / IP Logged

no it's sealed. i know that all speakers have cone noise but i've had my trunk open before when they were playing and they sounded fine to me. actually, the low bass sounds great, it's the tight punchy bass that kinda sounds like ass. i think i'm just gonna turn them back around and fire them towards the trunk.

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DYohn

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Joined: April 22, 2003

Location: Arizona, United States

Posted: May 05, 2004 at 8:16 AM / IP Logged

If you are using the same sealed enclosure that had the woofers conventionally mounted but just turned the speakers around, you have increased the enclosure size by the volume previously taken up by the basket/magnet structures plus addded the volume inside the woofer cones to the enclosure total. This can increase the net volume by 0.1 to 0.5 cuft. If you increase the size of an enclosure, in general deep bass response can improve but the system loses its "punch" and no longer sounds 'tight" in the upper resonse frequencies. Sounds pretty much like what happened to you. Another example of why enclosures must be designed and built for a specific purpose, and can have more effect on system SQ than the sound of the woofers themselves.

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inverted subs

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