amp keeps shutting down

I have a 2009 Altima 3.5 with a Pioneer 930bt. I have a secondary battery in the back as well. A little over a month ago I put in 2 12" W7s with a Logic TX4000D amp (4000 peak 2000 rms at 1 ohm stable). Basically the subs are wired outside the box in parallel giving me 1.5 ohms. I had the gain and input up 3/4 way and everything else turned down. Its been playing GREAT for the past month and just recently its been cutting out at high bass. At times even at low bass it clips. The amp turns completely off and doesnt turn back on until after 10 minutes or so. I turned the amp down to half way and it still did the same (high bass and sometimes at low bass). When the amp cuts off the power on the amp read .2v. I dont know if this helps. You think my amp is bad? thank you

I would check your fuses first and make sure ground is tight.  (don't just look at the fuse, use a meter, many fuses look good but don't allow much power thru)

i checked the fuses on the amp itself with a power probe ... they are all fine ...

Cutting out is not the same as clipping.  How did you set the gain?  When it cuts out what is the system voltage?Support the12volt.com

the voltage of the power wire say .2 to .3 .. the gain was 3/4 way i set it to half and its still doing the same

IF you dont have 12 volts on your power wire then you have a bad connection on your power wire. The amp wont make power go away on your power cable. Check your connections at your battery and your inline fuse on the power cable. And if you are checking that voltage by probing the ground wire at the amp with a DMM then double check your ground connections also. Again, the amp is not going to make your power wire show that low of voltage. You have a bad connection.

it reads perfectly fine when i turn it on .. as soon as it clips it reads the .2 or .3 volts but i will defiantly look into this thanks a lot

Your amp shutting down is not clipping. Clipping is when the audio signal starts producing a square wave and not a sine wave. A whole other issue. Your amp is shutting down because you are losing power in your power and or ground cables. Simple as that.

When the amp shuts down, you say you read 0.2 volts?  How are you reading this and at what point in the system?Support the12volt.com

when the amp is on and kicking the bass the power and remote read 12 volts an the ground reads properly as well. When the bass hits hard and the amp shuts off the power wire reads .2 volts an the remote wire and ground remain the same.