What's a component sub and why would I want one?

A component sub is simply a speaker that's designed to reproduce bass once it's installed in a compatible enclosure. Think about the impact of a movie soundtrack in a big theater or even in your own home HDTV setup. A component sub can add the same kind of power to the music in your car. And a car sub is not all about the boom that you hear on a street corner (although that's cool too) - you can pair a component sub with your choice of enclosure to get bass just the way you like it, from tight and punchy to fat and loose. And once you experience music in your car with a well-tuned subwoofer, you'll never go back.

Our take on the JL Audio C5-650cw

by Jo Greene

If you're looking to add bass to your ride without sacrificing trunk space, here's a great solution. Pair two of these JL Audio C5-650cw woofers with the right components for fatter, fuller guitar and bass in your soundstage.

JL Audio built this 6-3/4" woofer for extended cone travel so it'll move more air, putting more oomph in your music when the rhythm section kicks in. This C5 Series woofer uses the same patented cooling technology developed for the ZR Series speakers, so it'll play with a wide dynamic range at all volumes.

If you've already got a sub in the back, adding two of these woofers is great for adding some midbass punch in your interior. Even better, install JL Audio's C5-650 6-3/4" component system up front, then use two of these matched woofers in the rear to reinforce midrange and upper bass performance while keeping your soundstage right up front.

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Highlights:

6-3/4" component woofer
polypropylene woofer with butyl rubber surround
4-ohm impedance
25-75 watts RMS power range
frequency response: 48-5,000 Hz
sensitivity: 89.5 dB
depth: 2-9/16"
warranty: 1 year
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Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and specs chart | What’s in the box? | In-depth notes

Features and Specs


Size Loading...	6 3/4 -inch
Impedance Loading...	4 ohms
Cone Material Loading...	Mineral-Filled Poly
Surround Material Loading...	Butyl rubber
Ideal Sealed Box Volume (cubic feet) Loading...	N/A
Ideal Ported Box Volume (cubic feet) Loading...	N/A
Port diameter (inches) Loading...	N/A
Port length (inches) Loading...	N/A
Free-Air Loading...	Yes
Dual Voice Coil Loading...	No
Sensitivity Loading...	89.5 dB at 1 watt
Frequency Response Loading...	48 - 5000 Hz
RMS Power Range (Watts) Loading...	25-75
Peak Power Handling (Watts) Loading...	225
Top Mount Depth (inches) Loading...	2 9/16
Bottom Mount Depth (inches) Loading...	N/A
Cutout Diameter or Length (inches) Loading...	5 9/16
Vas (liters) Loading...	0
Fs (Hz) Loading...	0
Qts Loading...	0
Xmax (millimeters) Loading...	0
Parts Warranty Loading...	1 Year
Labor Warranty Loading...	1 Year

Product Research

What's in the box?

Download owner's manual

One 6-3/4" Component woofer

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Features

Cast Alloy Baskets: The Evolution C5 woofers feature cast alloy woofer baskets and incorporate JL Audio's patented Elevated Frame cooling system. This cooling technology, also found on the flagship ZR component systems and W7 and W6v2 subwoofers, allows air to flow directly across the top plate and onto the voice coil windings to greatly improve linearity at all listening levels.

Motor Structure: The DMA (Dynamic Motor Analysis)-optimized motor structure achieves outstanding linearity.

Woofer Cones: The cone and suspension elements were designed and manufactured by the world-famous Dr. Kurt Müller & Co of Germany. The speakers feature low-mass, mineral-filled polypropylene cones with butyl rubber surrounds. The cone and surround are inherently well damped to deliver an uncolored, neutral bass without any coloration. The speakers are also equipped with symmetrical-roll, hybrid-weave spiders.