If you are the type of person that is into loud, intense and heavy bass pumping music, then quality subwoofers are a necessity for your car audio system. This isn’t all the information that you need to know however. Before installing or investing in subwoofers, you should gather some information about some of the benefits and features that can come with a subwoofer.

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Alpine MRP-M500 Car Amp Subwoofer Amplifier    US $142.50

Infinity REF1600A 600-Watt mono Car Subwoofer Amplifier    US $50.00

NEW TWO 12" PYLE 1600W CAR SUBWOOFERS SUBS SUBWOOFER    US $72.00

2) CRUNCH GRP12D4 1000W 12" Car PAIR Subwoofer Subs    US $53.00

Dual XINC110 - car subwoofer driver    US $30.00

NEW JL AUDIO 12W3V3-2 OHM 12" W3 V3 CAR SUBWOOFER SUB    US $122.50

12V Volt 3 CHANNEL 2.1 Subwoofer Amplifier Car RV Boat    US $1.00

New Pair MA Audio MA150XE 15" 900 Watt Car Subwoofers    US $187.77

(2) POWER ACOUSTIK P3-12W 12" 5200 WATT CAR SUBWOOFERS    US $172.95

XXX DUAL 12" Car Sub Woofers + Bandpass Enclosure Box    US $119.95

Sony XPlod XS-L104P5B 10" Car Subwoofer 330W RMS/ 1200W    US $.95

2 NEW LANZAR 3200 WATT CAR AUDIO SUB SUBWOOFERS FOR AMP    US $89.95

2) NEW LEGACY 1600 Watt Blue 10" Car Subs Subwoofers    US $88.95

[ONE] db104 DVC 10" Car Subwoofer from Polk Audio    US $30.00

T.I.S. 4 Channel 700 Watt Car Stereo + Subwoofer Amp NR    US $33.00

New MTX Audio 12" Terminator Car Subwoofer w/Box & Amp    US $159.99

New Car Audio 12" 3-Way 1000W Subwoofer Speaker System    US $64.00

New MA Audio 600 Watt 12 Inch Dual 4 Ohm Car Subwoofer    US $59.99

TIS Audio 1 Channel 300 Watt Car Stereo Subwoofer Amp    US $23.38

KICKER CAR AUDIO CVT SHALLOW 10" SUBWOOFER CVT10    US $69.00

Power-Many subwoofers offer a ton of power and this is what you want for a loud and intense bass sound. Look at the RMS power ratings. These ratings measure the continuous power output of the subwoofer and you should match this to your amplifier.
Sensitivity-Sensitivity is essential and relates directly to power. Higher ratings will require less power to produce the same amount of sound.
Frequency-This range tells you how low a subwoofer can produce sound. This is a good factor to take into consideration but the frequency can be affected by a number of other situations within your car and system.
Size-Even experts will disagree when it comes to the size of subwoofers and which will allow for the loudest sound with the best quality. Many factors affect this but in the end if you are looking for loud sound then you want to go with the biggest and baddest subwoofer possible. However, when installed properly, smaller subwoofers can produce an exceptional and intense sound.
Take all of these variables into consideration. Match your needs and what output you desire before shopping for a subwoofer. There are a number of options and price ranges, but in the end it will be your personal preferences that you should base your final decision on for your car audio system.