Do the C1-650 speakers fit my car?

They fit many 6.5- and 6.75-inch openings with the included adaptor rings, and some 6-inch locations without them. Check your vehicle's speaker depth and opening before buying.

Do I need an amplifier?

No. They run on factory head unit power, but a small amplifier brings out more volume and control.

Is a crossover included?

The set is a component system with a separate tweeter, so it needs a crossover or an amplifier with active channels to split the signal.

How are the tweeters mounted?

Both surface and flush mounts are included, so you can place them on the sail panel, door or A-pillar depending on the vehicle.

How do they compare with JL Audio's C2 line?

The C2 step up uses higher-grade materials and a different tweeter, while the C1 keeps the same drop-in fit at a lower tier.

Where is the JL Audio C1-650 6.5-inch Component Speakers cheapest?

At Stereo Warehouse, for $159.99, as of our latest check.

Where can I buy the JL Audio C1-650 6.5-inch Component Speakers?

2 stores we checked sell it, including Stereo Warehouse, Installations Unlimited.

JL Audio C1-650 6.5-inch Component Speakers

Best price now

$159.99at Stereo WarehouseChecked Nov 13

Compared across 2 stores. Prices are checked against each store and labelled with when.

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What reviewers say

Owners generally rate the C1-650 as a clean, well-built upgrade over factory speakers, with clear highs and solid midbass for the class. Some find the aluminum tweeter forward and note the set needs proper crossover and mounting work to sound its best.

What people mention

Sound qualityPraisedOwners describe clear highs and clean midrange as a big step up from factory speakers.
Tweeter brightnessMixedSome find the aluminum dome forward or harsh until levels and crossover are dialed in.
Bass outputMixedMidbass is solid for the class, but low bass is thin without a subwoofer.
InstallationPraisedAdaptor rings and tweeter mounts make fitting behind factory grilles easier.
Build qualityPraisedOwners note sturdy materials and construction for the price class.

About the JL Audio C1-650 6.5-inch Component Speakers

The JL Audio C1-650 is a 2-way component speaker system with a 6.5-inch (165 mm) woofer and a 0.75-inch (19 mm) aluminum dome tweeter. It is designed to fit behind factory grilles. It is sold as a pair, and grilles are not available.

The woofer has a stamped steel 6.50-inch (165 mm) frame and a DMA-optimized motor system. Its cone is mineral-filled, injection-molded polypropylene with a rubber surround. A flat Conex spider sits at the top of the voice coil to control its motion. Tinsel leads are routed and attached to the spiders to prevent fatigue and buzzing. The woofer was developed with proprietary FEA modeling.

The tweeter is an edge-driven aluminum dome with a silk surround, Ferrofluid in the voice coil gap and a neodymium magnet circuit. It has good off-axis response and high-frequency extension. An in-line, outboard 2nd order high-pass filter with Advanced Tweeter Protection Circuitry is included.

Configuration

2-way component system

Woofer

6.5 in (165 mm), polypropylene cone, rubber surround

Tweeter

0.75 in (19 mm) aluminum dome, silk surround

Continuous power

50 W RMS

Amplifier power

10 - 75 W RMS per channel

Efficiency

91.0 dB @ 1 W / 1 m