Thread: What kind of amp?

Sorry to ask this but I have no idea about car audio. I recently purchased a 8" subwoofer in an enclosed box from some model of spec v with the rockford fosgate package (pic below). My question is what amp can I get to power this and not blow the crap out of it and can be had for fairly cheap? Should I find like a 200w mono or like a 400w 2 channel and only use 1. I don't know about this stuff lol. Having a hard time finding anything that is a small enough wattage. Thanks for any input

get a 400 mono, or a 700-1000 watt 2 channel just watch out what levels you set everything too. the easier on the knob the better lol

The same would apply for using an aftermarket amp



So the entire 9 speaker system uses a 300W amp

Rockford Fosgate® - Sentra

Nice info. So what should I do try and find the OEM amp and only hook up the sub? Or just find a really low amp like 150-200w or something?

Keep in mind that is 300w rms. 99% of manufacturers use peak watts to advertise. So an advertised 1000w 4channrl amp is usually making about 125w rms per channel and 250w peak. That is also usually advertised at 2 ohm load. So a 4 ohm sub on one of those channels would make 80-100w rms per channel. An 8 ohm sub would get 60-80w rms tops. Not exact figures just giving rough estimates. Every amp is different at different impedances. I believe those subs are 8ohm, and putting 50w to it would do it fine. You can buy a low pass crossover and wire it bridged between your two rear speakers if you have a decent head unit. An 8" sub isn't meant to add a lot of bass, and doing it this way should give it enough power to be heard without risking damage.

Thanks for the replies I literally know nothing about car audio just thought this sub was a nice OEM nissan piece that might and a little bit of flare. I believe I have a decent headunit its a pioneer with internal amp of 50x4.

what about something like this?

200 watt amp