Amp goes into protect mode when we start to turn the amp settings up

[Autruche]

Check your nominal load the amp is seeing, most likely it's too low.

If that's not it, open that bish up and look at the mosfets and take pics, they are probably toasted.

If it was at too low of an impedance and switching it to a higher impedance doesn't work, than you might have burned up the mosfets from running it at too low of a load. I know that from experience.

[ALPINE408]

if its a dual 4 ohm sub that would be wired to 1 ohm at the amp check to see is your amp can do 1 ohm

if there dual 2 ohm subs that is 0.5 ohms at the amp wich that amp should not be able to handle

[J.Reed]

they are single coils and selectable guys

[ALPINE408]

so there single voice coil with a switch that lets it be 4 ohm or 2 ohm ive never heard of this

[87ChevyCaprise]

if its a dual 4 ohm sub that would be wired to 1 ohm at the amp check to see is your amp can do 1 ohm

if there dual 2 ohm subs that is 0.5 ohms at the amp wich that amp should not be able to handle

They are single coil selectable

[ALPINE408]

if thats the case put them to 4 ohms and wired 2gether would be 2 ohms and the amp wont turn off

[blownengine]

so there single voice coil with a switch that lets it be 4 ohm or 2 ohm ive never heard of this

Yea how does that even work? Check it with a DMM

[J.Reed]

if thats the case put them to 4 ohms and wired 2gether would be 2 ohms and the amp wont turn off

thats the problem. You are wired to a 1ohm load and the amp is only stable at 2. Switch them to 4ohm and enjoy.

[Autruche]

so there single voice coil with a switch that lets it be 4 ohm or 2 ohm ive never heard of this

Quite simple in theory, a dvc sub with one 4 ohm coil and one 2 ohm coil, but you have a switch that only lets you use one coil at a time.

[blownengine]

Seems kinda inefficient. With the sub carrying that extra weight around. But useful for the everyday guy.