J.HA

So you guys think that 2 12"s will sound better and louder than 2 15"s in the same enclosure(~1.75 per chamber) with the same amount of power?

Before you guys flame on me and suggest I go ported, please understand that space is going to be an issue for my trunk. It is going to be a Lexus GS Sedan. I am going for sound quality, but would like to get loud as well. The amp that I will be using will be a single Rockford T25001BDCP. Should I get 2 15" Fi Q, each in their own individually sealed 1.75-2cft box, or a single 15" SP4(not sure how good they sound) in a sealed 3-3.5cft box? OR even 2 12" Fi Q each in a 1.5-2cft sealed? I know these volumes for the 15" Fi Q are below recommended, but I have no choice. Any tips would be great.

yeah that what it is. Will replacing this part repair the entire amp?

I opened the amp and found out that 2 of these small chips has solder that is burnt. These chips are attached to the heatsink fins.

can this be fixed besides taking it to repair or JL?

my JL 1000/1 amp was working fine until suddenly it stopped working and producing screeching-humming sounds through my subs. I took a look at the amp and i noticed that the Low Ohm light was on. I disconnected everything besides the power wires and the low ohm light is still on. Also the amp is producing a slight humming sound as well. What is the problem? How much would it cost to get this fixed?