sub cutting out

[nickjoy92 10+ year member]

Ok heres my first post. I have a 1999 chevy malibu v6 with a optima yellow top and the big 4 wire uprgrade. I have a alpine cda-105 head unit infinity kappa 6x9s and 4x6s and a alpine type R 12" 2 ohm sub (just one) with a alpine mrp-m500 amp. oh and a rockford fosgate 1 farad cap. But anyway initially before the yellow top and big 4 upgrade my amp was going into protect mode at a certain volume and cutting out my sub and because my lights were dimming i figured it's probly under powered so i got the yellow top optima and the big 4 wire upgrade now all my lights in my car and head lights dont dim at all but the sub still cuts out. I have a really good ground on the amp so it cant be the ground I just dont no what it is. Its not liek the amp it over powering the sub because the amp is an exact match for the sub I have. Now I'm planning on getting another 12" type R which would be 1000 watts and im getting a 300 watt amp for my 6x9s and 4x6s. I dont want all this to keep happening with the new setup. any help is apretiated.

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[kr15 5,000+ posts]

well, a dual 2ohm in paralell is a 1ohm load, that amp isnt one ohm stable...are you sure its wired in series?

 

[kr15 5,000+ posts]

wired in series presents a 4ohm load on amp (not utilizing all your power) so actually, adding a second d2 in series will present 2ohm load, and utilize all your power. And your electrical is more than enough for that amp..ditch the cap

 

[nickjoy92 10+ year member]

It is a 2 ohm sub with a 2 ohm amp that pretty much all I know. Im pretty sure i wired it how the instructions said.

 

[kr15 5,000+ posts]

It is a 2 ohm sub

is it single 2ohm? Or dvc4 wired in paralell? thats the only way to get a 2ohm load. Iirc, Type R is only dvc models

 

[nickjoy92 10+ year member]

Im not sure i bought the swr-1222D which is a 500 watt 2 ohm sub and it has 2 banana plugs in the actual sub connecting 4 connectors. If that helps you?

 

[Chris Z 10+ year member]

That means it's a DVC 2 ohm sub. You can wire it down to 1 ohm, or wire it up to 4 ohms.

 

[nickjoy92 10+ year member]

But the amp is a 2 ohm so doesnt it make sence to leave it at 2 ohms