Subwoofer /amp problem?

Question

I just installed a 300 watt amp and 10" sub kit in my car. It worked fine for a few days, but now, when I turn the volume up, it cuts out until I turn the volume down. I haven't adjusted any of the settings. Is this a grounding or power issue? Where do i start?

Answer 1

first of all it depends on the type of amp you have either a 1 or 2 channel. first off you have to learn how to adjust your gain and how you do that is by turning your head unit volume about 3/4 up and then go to your amp and turn the gain up all the way until the subwoofer clips then turn it down a little bit and then you shouldnt have that problem. also your frequency knob on the amp should be around 50-80hz any thing higher than that and youre pushin out high frequencies. and then your LPF(low pass filter) and HPF(high pass filter) switch should be on LPF. if clipping still continues check to see if your amp is in a well ventilated area sometimes its because your amp is gettin too hot and needs to be somewhere cool

Answer 2

I use a bridged 760 on my 10" sub and I hit the cutoffs before I am completely deaf....but it hits awfully hard.

Buy another 300 when you get the money and bridge them - hook the + of one amp to the + of the sub; hook the minus of that amp to the + of the second amp; and hook the - of the second amp to the - of the sub. Feed both amps with the same input and voila - now you have a 600w amp. In theory, you can chain these guys together until you can pull no more amperage out of your battery (then you have to start bridging batteries and alternators on your car, as well).

In spite of this, you will not "double" your volume. SPL is exponential with input power. You will notice an increase in the "hit" and volume before they cut out.

Be sure your amp is "bridgeable" before you try this stunt (most are). Talk to your sales guy if you buy them at a store.

Answer 3

i would not use the the bass boost the heasdunit provides at all. simply turn the gain up slightly more and I wouldnt reccomend turning the bass knob that can with the amp up more than 3/4;s the way. it could be cutting out for a few differant reasons, 1.) the subs are drawing to much power from the amp. or the amplifier is going into "PROTECT MODE" which may be due to a bad ground, overheating, or the subs are wired below what the amp is stable at.

Answer 4

your amp will have a built in saftey that shuts off power to it when
it gets too hot. check your manual that came with it for installtion
guidelines since it will provide the proper settings for the low and
high pass filter settings as well as gain, crossover, and bass boost settings also. amplifiers do not come pre-set to any sound
setting from the box and require some tuning to get the best sound. check that stuff out since it should be quite simple to figure out. p.s. if the setup came from wal-mart return it
immedetaly and get something from a place like best buy.

Answer 5

Make sure the gain control matches the RMS Volts of the HU (head unit). Also make sure the LPF is on and set correctly.

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Hey Jordon,

The manual won't provide the proper settings for the low and
high pass filter settings as well as gain, crossover, and bass boost settings because there are too many different systems and setups.

Answer 6

I concurre. The most likely culprit is incorrect settings on your amplifier's gains. Gotta make sure they match the output voltage of your HU. I had the same problem before.

Answer 7

how loud did u play it when it was hooked up sound like u blew the finalls out of the amp. if not check for over heating problems