Volfenhag ZX-8400 and 2 12 zx-4712

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scottypwnage

Member - Posts: 1

Joined: December 07, 2006

Posted: December 07, 2006 at 4:35 PM / IP Logged

I just bought a volfenhag ZX-8400 amplifier and 2 12" zx-4712 subwoofer's. Due to my lack of knowledge with the wiring and power output of the amplifier, i was looking for the best way to wire these up. Sorry for the lack of spec info on the products, i wasn't positive what was needed. Any input would be greatly appreciated.

Thank you,

Scott

jeffchilcott

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Joined: April 11, 2002

Location: United States

Posted: December 07, 2006 at 4:40 PM / IP Logged

impedance of each woofer, if they are DVC or not

Specs on the amp

bridigable? channels? minimum load?

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j_darling2007

Copper - Posts: 210

Joined: January 21, 2005

Location: United States

Posted: December 07, 2006 at 4:57 PM / IP Logged

The subs are 4 ohm DVC an the amp is 2 channel bridgeable, or 2 ohm stable per channel. I couldn't find any rms wattage for him as I doubt they are published (just the peak were published).

Wire the subs like this and bridge them on your amplifier.

Volfenhag ZX-8400 and 2 12 zx-4712 -- posted image.

This will be the only way to wire them since the amplifier is not 1 ohm stable.

Jacob

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dabear1029

Member - Posts: 8

Joined: November 03, 2006

Location: United States

Posted: December 07, 2006 at 9:18 PM / IP Logged

I have a Volfenhag Zx-8400. Here are the RMS numbers that I found for them:

Bridged 4ohm: 600w x 1

Bridged 2ohm: Not Stable

Dual 4ohm: 200w x 2

Dual 2ohm: 300w x 2

Dual 1ohm: Not Stable

Peak Bridged: 2000w x 1

Peak 2-Channel: 1000w x 1

When I got my amp hooked up tested for the outputs, this is a little exaggerated, but rather close.

Hope this helps.

Swick

dabear1029

Member - Posts: 8

Joined: November 03, 2006

Location: United States

Posted: December 07, 2006 at 9:22 PM / IP Logged

sorry, in the above post the last line should be

Peak 2-Channel: 1000w x 2

I also did a little bit of research on the subwoofers, here's the specs that I could find

Subwoofer Specifications:

* Subwoofer Size 12"

* Impedance 4 ohms

* Dual Voice Coil Yes

* Peak Power Handling 1000 watts

* RMS Power Handling 500 watts

* Woofer Surround Butyl Rubber

* Woofer Composition N/A

* Sealed Box Volume N/A

* Ported Box Volume N/A

* Sensitivity 90 dB

* Frequency Response N/A

* Xmax (millimeters) N/A

* Top Mount Depth 6-3/10"

* Cutout Diameter 11-1/10"

I am sure that the RMS power handling is exaggerated a bit, more Volfenhag specs are.

Swick

j_darling2007

Copper - Posts: 210

Joined: January 21, 2005

Location: United States

Posted: December 07, 2006 at 9:35 PM / IP Logged

OK. That confirms what I found when i looked them up. Your best bet would be to wire them like that diagram I posted above. It is stable having a 4 ohm load bridged, so that is the only way I see to wire them.

Someone correct me if I am wrong though.

There are 3 kinds of people in the world, those who can count and those who can't

dabear1029

Member - Posts: 8

Joined: November 03, 2006

Location: United States

Posted: December 07, 2006 at 9:39 PM / IP Logged

That what I thought, I have too 4ohm DVC subwoofers hooked up to mine at a bridged 4ohm. Get's just about 600 watts, and have never had a problem with noice, or clipping. It's a pretty good sounding amp.

Swick

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Volfenhag ZX-8400 and 2 12 zx-4712

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