Wiring Sub to Amp Safely

[Umbra]

Hey guy, I'll cut to the chase:

I've got a Kenwood KAC-9103D and two Rockford Fosgate Punch HE2s. I've also got two boxes; one for a single sub and one for two, but there's only one set of leads on it, so whatever parallel/series wiring needs to be done on/between the speakers so two wires connect the box to the amp.

Rather than improperly conveying the watts, ohms, etc. each of those links will bring you right to the details pages for the respective item. What I'd like to know is how to best wiring two situations so I get the most power safely (without pushing anything too hard). I'd like to know how to wire it using both the subs, but also how to wire it using just one of them in case two's too much.

Thank you.

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[jrdnhsnbrg 10+ year member]

As far as I know that amp isn't 1ohm stable so this is how you'd wire the 2 subs like this:

http://a248.e.akamai.net/pix.crutchfield.com/ca/learningcenter/car/subwoofer_wiring/2DVC_4-ohm_mono.jpg

 

[Umbra]

As far as I know that amp isn't 1ohm stable so this is how you'd wire the 2 subs like this:
http://a248.e.akamai.net/pix.crutchfield.com/ca/learningcenter/car/subwoofer_wiring/2DVC_4-ohm_mono.jpg

Thanks.

Both the Crutchfield spec sheet and the manual for the amp say it's one ohm stable. It's rated at 900W

 

[jrdnhsnbrg 10+ year member]

Crutchfield says 900Wx1 at 2 ohms. The x1 just means 1 channel

 

[Joebobclark 10+ year member]

Kenwoods site (Kenwood - KAC-9103D) says its 1 ohm stable... Id give it a shot like this http://a248.e.akamai.net/pix.crutchfield.com/ca/learningcenter/car/subwoofer_wiring/2-DVC-4-ohm-mono-low-imp.jpg

Set the gain properly and you should be fine.

 

[tommydh 10+ year member]

Thanks.

Both the Crutchfield spec sheet and the manual for the amp say it's one ohm stable. It's rated at 900W

look again 900w x 1 at 2 ohms not 1 ohm

 

[tommydh 10+ year member]

It does say 1 ohm but it is "unbridged " whic I learned the hard way use bothh sets of terminals if doing 1 ohm if not stay at 2

 

[jrdnhsnbrg 10+ year member]

It does say 1 ohm but it is "unbridged " whic I learned the hard way use bothh sets of terminals if doing 1 ohm if not stay at 2

If they are d4 subs OP can only either wire at 1,4, or 8 ohms. Because those subs are only rated for 300W RMS I'd keep them wired at 4.

 

[jrdnhsnbrg 10+ year member]

double post.

 

[Umbra]

Thanks everyone.

Right now I've got the two subwoofers wired in the box and it reads 4ohms across the leads.

This is where I'm lost. How much wattage or power can the coils receive wired like this, and does it fall within the acceptable range?