JonnieBlaze

Hey guys, I bought some E8s a long time ago and haven't had time to install them in a vehicle yet. I'm looking to build a ported box for two of them and was using a calculator online to help me figure out how big to make the port. The box is for two E8s (they displace .03 ft3 each right?) and I'm trying to build it so each sub gets .6 ft3 of airspace and the port is tuned to 30 hz (like the sundown website recommends). I can get the internal dimensions right at 1.2 ft3 (a little more actually to accommodate the displacement of the sub) but the port is only a 2"x2" square 8" long. Does that seem right? Could I make it 1"x4" rectangle or even .5"x8"? Or would that cause too much turbulence having the port that narrow? It just seems odd that the port needs to be so small....but I've never built a ported box before...only sealed. Thanks for the newb help.

Hey guys, I am having the following issue with my amp: The protection light comes on as soon as it powers up and it stays on. If I leave the amp on for a minute or so I can feel it getting really hot on the corner where the fuses are located on the bottom. The side of the amp is where it is getting hot and it looks like maybe a transistor over there (you can see if by looking in past the fuses). I have a Kicker amp that works just fine using the same power, ground, and remote wires. Memphis quoted $175 to fix it. I think it could be an easy fix if its just a bad transistor. I know how to solder and I've taken an amp out of its heatsink before to work on it but ended up not needing to do anything to it so I have no experience working on amps. Do you all have any website recommendation that could give me an idea of how to do this? Do any of you all do your own amp repairs and if so do you have any hints you could send my way? Thanks.

No warranty on the amp unfortunately. Db-r said the same thing...transistor probably went bad because of something else going bad. I have soldering guns and multimeters but not the skills to dive very deep into this thing. Guess I'll send it to someone in a couple weeks when I get some extra cash.

I saw that website earlier. I was thinking about emailing them if it got to the point where I couldn't fix it myself. But I went ahead and just now sent them an email just to see what they say. Hopefully they say a transistor is an easy fix and I can do it myself pretty easily..haha.

Alrighty...after over a week I finally got back out there and worked some more on the Forester. Not having much time or experience with this makes the whole process very slow. Luckily, I had black friday to work on it while the rest of the world was shopping Popped the fiberglass out of the car to more easily add some layers: Finished putting Raamat on the floor: Finished putting Ensolite everywhere: Trimmed up the fiberglass a bit and put it in for a test fit: Fitting on the top board of the enclosure: Fitting on the front board of the enclosure: Test fitting everything: Now here is something I'm not sure is going to work. The floor is very uneven in the back. So the board that the amps will be mounted to does not sit even. My plan was to put little blocks under the board to raise the low spots to be even with the high spots, then shoot expanding foam everywhere to take up the extra space and make the board level. Preparing for the expanding foam: Amp floor put in and foamed under....foam hasn't fully expanded yet: After the foam hardens I'll cut it and shape it to make it look right. I still need to finish the boxes obviously. I won't be putting carpet over anything for a while. I just want to get everything finished and working then I'll worry about cosmetic things.