I wanted to use car woofer as Home Hifi woofer and i wanted to get those 2.1 mini amplifier that can be found in Shopee. The sub output rated by the mini amp is 100w RMS. Not sure at what Ohm. It says able to support from 4ohm to 8ohm.

Question is, if i buy a car woofer that is rated at 300w RMS 4 ohm dual voice coil, does that mean if i connect the woofer to the amp via 8 ohm wiring, does the woofer cut in half power to 150w?

I mean can the 300w 4ohm DVC woofer connect to 100w amp via 8ohm woofer wiring?

Thanks.

What about the woofer? Can i say its 150w 8ohm? That means the mini amp can still push using its 100w 8ohm?

Wow so complex. Haha

I just want to know about the final wattage from 300w 8ohm. Will it be 150w?

Ohh that's great bro. I didn't know about the data sheet.
The woofer i looking at is either this.

Rockford Fosgate R2D4-12
KENWOOD KFC-W3514DVC

Do you know if they supported for Nobsound 2.1 50w x2 + 100w for woofer.

Thanks a lot.

The amp is rated 100w output and the woofer rated around 300w for 4ohm DVC. Do u think the amp can push the woofer? Should it be wiring at 8ohm or 2ohm?

Thanks.

Thanks for the helpful response bro.

But I'm little confused here. U mentioned 2 ohm.
So that means i need to set subwoofer wiring as 2 ohm? Will the woofer wattage increase coz of 2ohm?
And the 100w from the mini amp will output 2ohm or 4ohm?

Thanks.

I just purchased 24v 5a adapter. But I'm just wondering, the sub output is max 100w at 4ohm. So if i wired the woofer at 2ohm, then the woofer surely needs more than 100w right? Please correct me if I'm wrong.

Thanks.