No bass... i got the stereo less than six months ago and one day when i started it up the subs( the 2 bigger speakers) just didn't work at all. only the smaller speakers were working so all you hear is bland music without the bass... can somebody please help me with this... tnx

Make sure that the gain setting on the amp is turned up high enough on the sub's amp.

The amp may no thav eenough to push these subs, these are top of the line subs, they probably require a bigger amp, if you are running other speakers through this also, you certainly need another amp, or a bigger one with more channels. also double check all your wiring.

Line outs Left and Right from mixer to power amp Left and Right inputs,
Power amp outs to Subs(if they have passive crossovers built in check specs on subs).
From Subs then to Main spkrs. Make sure power amp is set in stereo mode using this way.

Alternative: You will need at least a 2-way stereo crossover unit inline after mixer and before power amps if the subs don't have a built in passive crossover. Most of them do have passive crossovers in the subs these days. Then separate amps or one channel would drive the subs and the other the main speakers. True stereo would require at least a 2 way crossover and two stereo power amps if hooking them up this way.

There is another option as is common with many sub setups. Send the signal to the mains using L/R outputs from mixer and a separate Mono output to the subs only. Putting only bass/kick and low frequency outputs in this send would help too.

You sold the subs, or sold the infinity kappas? After selling a sub system it is often more than disapointing to go back. It often does sound quiet. You can either deal with it for a couple months until you get used to it, or I'd go with a set of MB Quart to replace your kappas.

what model kenwood speakers do you have? what head unit do you have? do you know how they hooked up the rca cables to the back of the deck? if this deck has got 3 pre outs you may have lost the sub pre-out. are you amp lights coming on? if you are still having problems you can take a 9v drill battery or bigger and touch the wires from the speaker to the battery, make sure positive to positive and neg. to neg. the speakers should pop if they are ok, that should re-assure you on the speakers. let me know and ill help where i can. good luck

main problem i think you are having is your loosing power when it kicks a note.. get a power cap! power caps feed your amps constant power! this will solve your problem :)

Sounds like one of two problems: either your subs are beginning or have gone bad, or you amp is going bad. What size power and ground wire are you using? You should be using at least a 4 gauge for both. Also what impedence are you running with the amp, ie; 4ohm mono, 2ohms stereo, etc?

rewire the whole system with new wires,you could have a bad ground or wire try it first if that dont work rewire

You are most likey running too much power from the amp to the speakers.. you might want to try just notching the bass down a notch or 2.. just enough that the bass will hit

Switch the input wires from the sub to the speaker amp and vis versa. See if the problem switches to the other amp. If it does, you know you have a fault in the head unit. If it stays in the same amp, then you know you have a problem in the amp unit. Check with the manuufacturer online about how long the warranty is on each unit. Maybe they are still covered. Good Luck Please do not forget to rate this thread.