I dunno if anyone on here can help me with this but i'll try anyways. i just installed two kenwood 10's and a 2000 watt amp in my truck. it's a 94 by the way. I made my own box and it really isn't very pretty. It isn't airtight at all and i tried porting it right in the top(two 3/4'') holes. I've got the volume turned all the way up till i hear the overload clicking and it just doesn't seem loud at all. the subs are 1000 watt peak. any help at all will be appreciated. i need more volume. now i'm thinking about slapping in two more 15's. then she'll bump.

 

Check these:

1. Check speaker polarity. Ensure your output positive and negative leads on the amp are connected to the respective positive and negative inputs to your speakers. One speaker with correct polarity and the other reversed polarity will make your bass not loud at all.
2. Check your ground. The ground wire connected to your chassis should be tight and paint and corrosion free. Metal to metal. Ensure good continuity exists between the ground connection on your amp and to the chassis.
3. Is your power wire and ground wire thick enough? Try to drink a milk shake with a thin straw. It's hard and it takes a lot of effort. Same with your wiring. Your amp will draw a lot of current and over heat quicker with thin gauge wires. The wires could possibly overheat and cause a fire in your vehicle.
4. Check every single connection and make sure it is tight, corrosion, and paint free. If you have any terminal lugs ensure it's crimped tightly around the wire.
5. How old are the speakers? If they are old enough the coil inside the speaker could be breaking down.
6. The box. It plays a lot in the quality of the bass the speakers produce. Professional installers actually use calculations based on air movement, type, size, wattage of speakers, etc. All of these variations are calculated to make the box.

I hope this helps.

 

brand new kenwoods that already cracked in the cone. 6 gauge wiring, i tried many different outputs and chose the best one.(my head unit has many diff outputs). the ground is wrapped around the stud for the seat. i think it's the box because it' too small and i made it out of 1/2'' plywood so it's not great quality. i'm gonna make another bigger better box and see what it does for me. i also gotta call kenwood and see if they'll warranty my subs.

 

if your ground is just wrapped around the stud for the seat that could be the problem try bolting it to the floor or find a better ground for it

 

The cones are cracked already? Yea, definately replace those. Also, I recommend you search online on how to manufacture a quality box or just head up to a sound shop and let them know what you have and they will set you up with a good box.

 

yup i'm gonna use a tablesaw this time and do everything a lot better. my first box i just kinda threw together and was in too mucha hurry. The subs are just cracked on the surface of the cone so they still sound alright but i am still gonna see if kenwood will warranty them. i'll try playing with my ground connection also. thanks for the opinions guys.

 

If you have a bad ground your amp will be turning on and off. It will not give you ****ty base. Its either grounded or its not. It sounds to me like your amp is going into protect mode. Maybe you have wires touching each other right where they connect the the amp on the little screw down plates. People usually get a big *** power wire and cut it down some to fit it into the 12 v slot on the amp and sometimes it touches the ground slot or + - speaker wire connections. you could also have a sub volume level on your head unit that is not turned up.

A box no matter how ****ty will still produce base. It might just rattle like a mother ****er. If you turn a sub on out of a box it will still make base so I do not think it is the problem personally.