I have a 12 in kicker subwoofer thats good for 750 watts.
My amp is 1200 watts.

If I use this amp will i blow my subwoofer?

 

i don't think your amp is actually 1200 watts i think that's your peak rating, look at the rms rating then decide.

 

make/model of amp?
Model of sub?

 

turn the gain down.

 

Geezz....for the record: Amp gains are not VOLUME controls.

 

maybe i am reading your post wrong and you are actually agreeing with him. you are right gains arent volume controls they lower the output wattage...

he was right and that is all that the op should have to do.

 

The gain controls are there to ADJUST or level the input signal to the amp.
While you can adjust it to the point that the amp will not put out as much power at a certain volume level...its not ideal.

 

The gain is the unitless measurement of the amplifiers productivity. Gain is produced by measuring the output signal and dividing by the input signal. By turning the gain down, you effectively turn down the Gate current within your Mosfet amplifier (as you already know and said, adjust the input signal), thereby reducing the Source to Drain current. In so doing, does this not reduce the overall-effective-gain and therefore the amplifier-output-power?

Unless I missed something (which I easily could have), I would call that the ideal solution in my book, otherwise you can buy new speakers, or another amplifier. Anyway OP, most amplifier power ratings are fairly off of the actual values (ie, most are inflationary values). If you hear any adverse distortion or noise (your amplified signal is hitting the power rails) you need to immediately turn it down further. Be excessively cautious.

Another alternative is buying another sub and running it on the second channel (assuming you have a two channel amp that is bridged to get 1200 Watts). IDK because I don't know what amp you have. Watch your impedance values. Good luck.

 

you can set the gain with a dmm to output a certain amount of wattage

 

Until we know the amps make and model any advice is pretty much pointless. 94

 

this is how i understood it (although more in depth than what i knew)

best advice out there...
...OP?

 

What amp is it? You can blow any speaker depend how your stereo's setup.

 

distortion ie clipping blows up stuff. I never had problems overpowering subs as long as you set the gains properly.

 

Depends on the model of sub, and more importantly the amp.

Most amps are overrated when it comes to true life output.

More important than the wattage is the resistance. Is it a dual voice coil sub? How many ohms per coil? If we had model numbers we could help you more.