When getting a sub and an amp, does the sub need to have the higher peak power handling or vice versa?

Answer 1

I suggest ignoring the peak power rating entirely. There is no accepted standard for determining "peak" ratings, so most manufacturers just use it as a marketing tool.

You should match your sub to the amplifier using the RMS power ratings (sometimes called continuous, nominal or "music" ratings). The RMS rating of the sub should be the same or greater than the RMS output of the amp. Note that most amps have different power ratings for different impedance loads; ie, a different rating for 2 ohms vs. 4 ohms. If you have a single 4-ohm speaker, then you need to check the amp's 4-ohm power rating.

RMS is NOT a "minimum" rating. In an amplifier, it's a rating of the maximum power an amp can produce continuously, with an acceptable distortion level. In a sub, it's a rating of the maximum power level the sub can handle continuously, without damage.

Answer 2

No, you need to make sure that the peak power handling is the same or more than the peak power output of your amp...if you have more than the allowed power going to your sub you will fry it...so get subs and then get the amp...here's an example...i have 2 Pyle 10" subs ech sub can handle 1000 watts of power so i bought a 2000 watt amp to supply enough power for both...you do not have to be at exactly peak handling power though...you just need to stay above the RMS rating...a.k.a. least amount of power needed to run your subs...