The Rockford Fosgate Punch 400-Watt Mult. offers a very good subwoofer output. You can also try the Boss CX1100M.
The Kicker ZX300.1 Subwoofer Car Amplifier is great.
Yes if you want the best sound out of it then it is a must.
It depends on your car, but for a large car you can get a proper subwoofer with a wooden casing for less vibration.
The Legacy subwoofer gives great output for the money, but if yo're looking for the best sound, consider the Pioneer flagship subwoofers.
Alpine offered up until last year the PDX-1000 wich is a 1000 Watts RMS amplifier designed with the type X subwoofer series in mind. Now the best match would be the PDX-M12. Set the amplifier gain carefully as this amplifier is a bit strong for this subwoofer.
The higher output and wattage wiring works the best for any sort of subwoofer setup.
The Pioneer Premier TS-SW1201S2 is perfectly matched.
You need to make sure the impedance matches or you will blow you amplifier! It would be best to replace it with the same brand as the speakers, feed it with a digital cable. There won't be a problem of overloading your amplifier.
Which is the best sony wireless subwoofer?
kicker
whats the best tube acoustic amplifier ?
What you need is a Speaker Wire to RCA converter. You can find one at about any car audio store, I.E. Best Buy, or any car audio place. They can run from 25-30 but you may be able to find a budget model if you look long enough. What is does is converts the signal from your Deck to a signal the Amplifier can understand. You just connect your RCA cables to the converter and run them to your amplifier. Then connect your subwoofer to the amplifier. Quite simple process and can easily be done. Ensure your subwoofer is compatible with your amplifier as far as OHM's go or you will blow it. Just some extra G Whiz info.......