I buy 1000w car woofer .what watt I should buy?

Solution
Meaning power supply wattage - correct?

More information is needed. There are other factors involved.

For example; visit the following links:

Start here:

https://www.lifewire.com/build-a-car-stereo-system-3134891

and

https://www.lifewire.com/stereo-amp-wattage-3135065

Depending on your wiring plan you need to consider using some calculator to help determine the necessary wattage.

E.g.

https://geoffthegreygeek.com/calculator-speakers-in-parallel/

Overall more information is necessary - details matter.


Meaning power supply wattage - correct?

More information is needed. There are other factors involved.

For example; visit the following links:

Start here:

https://www.lifewire.com/build-a-car-stereo-system-3134891

and

https://www.lifewire.com/stereo-amp-wattage-3135065

Depending on your wiring plan you need to consider using some calculator to help determine the necessary wattage.

E.g.

https://geoffthegreygeek.com/calculator-speakers-in-parallel/

Overall more information is necessary - details matter.


 
Solution