You can wire and amp down to 0.3 ohms by decreasing its windings.
If your sub is 2 ohms and your amp is 2 ohm stable, your done. Your amp will be at 2 ohms because the sub is 2 ohms.
Two four ohm speakers in parallel is two ohms. Make sure the amp is rated for that load impedance, or you could damage it.
An amp fuse does not have a specific resistance in ohms. The resistance of a fuse is very low, usually in the milliohm range, and is designed to blow (open) when the current exceeds a certain threshold to protect the circuit.
They're are not related. Watts are measurement of power while Ohms are measurement of resistance. One watt equals one volt times one amp.
You bridge the amp not the sub.
The Kicker Impulse 352xi amp has a maximum power output of 35 watts per channel x 2 channels at 4 ohms or 35 watts x 2 channels at 2 ohms.
amp*volts=watts
1 amp.
A 15 amp circuit breaker should trip at 15 amps regardless of the load voltages or impedances. If you have 277 volts and 7 ohms, the current would be 39.5 amps and a 15 amp circuit breaker should trip.
Car stereos are designed for 4-8 ohms loads unbridged (8 ohms bridged). So wire it for 4 ohms. If you use a separate amp for the speaker then refer to the amp's documentation - most are designed to operate with standard 4 ohms unbridged and may also have provision for 2 ohms unbridged (or 4 ohms bridged).
Depends on the amp and type of speakers brand and ratings would be nice info u also need to look at ohms of the amp and the speakers