Why replace your factory speakers?

The speakers that originally came in your car were made from inexpensive materials, designed to create acceptable sound at the lowest possible cost to the manufacturer. If you love music, you deserve better. Name-brand aftermarket speakers deliver fuller, richer sound with considerably more detail and nuance, and they're capable of playing louder and cleaner than factory speakers. Connect new speakers to your factory radio and you'll get the best possible sound from your dealer-equipped system. Pair them up with a new car stereo for a level of enjoyment that can rival a high-fidelity home audio experience.

Our take on the Focal K2 Power 165KRXS

by Buck Pomerantz

K2 Power speakers — engineered for superb sound

At Focal, all that matters is music. Focal's sound gurus engage in intensive listening sessions as they design a new line of speakers, making it their mission to create products that deliver uncanny realism, sweeping dynamics, and breathtaking depth. During the hands-on production process, they test every model meticulously to ensure that they meet Focal's exacting standards.

Focal's "Power Hi-Fi" philosophy

The K2 Power 165KRXS 6-3/4" component speaker system features nimble woofers made from Aramid and glass fibers that demonstrate the control needed to reproduce delicate classical passages, yet will handle the power needed to drive your bass-heavy music with authority. Best of all, the woofers measure a little over 2" deep so they'll fit in a wide range of vehicles. Non-magnetic zinc-aluminum alloy baskets won't interfere with the speaker's internal magnetic fields, so you enjoy even more accurate reproduction.

Inverted dome tweeter design

Focal's 2" inverted dome tweeters act like little woofers, dispersing the highs in a wide pattern to create an exceptionally natural soundstage. K2 Power crossovers use hand-made components developed by Focal to deliver an ideal blend of the highs and lows for a dynamic stereo image. The 165KRXS's crossover network features three levels of tweeter control, a high-frequency boost to improve definition, and two levels of midrange control so you can dial in the sound to your car's environment.

Note: Focal describes this model as a 6-1/2" speaker. Most manufacturers designate this same frame size as a 6-3/4" speaker. For simplicity's sake we list it as a 6-3/4" speaker.

Woofer cone construction K2 Power crossover network

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Highlights:

component speaker system includes two 6-3/4" woofers, 2 tweeters, 2 external crossovers, and 2 woofer grilles
K2 composite woofer cone (Aramid, foam, and glass fiber)
butyl rubber surround
2" woven Aramid fiber inverted-dome tweeter
2-way external crossover with 3 tweeter and 2 midrange level settings
4-ohm impedance
power range: 6-60 watts RMS (120 watts peak power)
frequency response: 75-20,000 Hz
sensitivity: 94 dB @ 2.83 V
woofer mounting depth: 2-3/16"
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

General
Design Loading...	2-way
Tweeter Design Loading...	Inverted Dome
Tweeter Composition Loading...	Woven Aramid Fiber
Woofer Composition Loading...	CMKV Composite
Woofer Surround Loading...	Butyl Rubber
Parts Warranty Loading...	1 Year
Labor Warranty Loading...	1 Year
Specifications
Sensitivity Loading...	94 dB at 2.83 volts
Frequency Response Loading...	75 - 20k Hz
RMS Power Range (Watts) Loading...	6-60
Peak Power Handling (Watts) Loading...	120
Impedance (Ohms) Loading...	4
Top-mount Depth (Inches) Loading...	2 3/16
Bottom-mount Depth (Inches) Loading...	2 7/16
Cutout Diameter or Length (inches) Loading...	5 5/8

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What's in the box?

Download owner's manual

Two 6-3/4" Woofers
Two inverted dome tweeters (with attached 22" length of speaker wire)
2 Tweeter flush mount cups (installed)
2 Tweeter angle mount adapters
2 Crossover networks
2 Woofer grilles
2 Woofer grille mounting rings
2 Black tweeter grilles (installed)
2 Silver tweeter grilles
2 Woofer mounting gaskets
16 Speed clips
Twelve 5/8" Self-tapping screws (T10 Torx head)
Twenty 1" Self-tapping screws (T20 Torx head)
Owner's manual (English/ French)
Serial number card

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.

Woofer
Tweeter
Crossover
Dimensions

Woofer

K2 Cone: The woofer cone is a CMKV sandwich composite consisting of Aramid fiber, foam, and structural glass fiber. This combination of materials results in a rigid, light weight cone with excellent damping characteristics.

Surround: The butyl rubber surround is resistant to ultraviolet rays, temperature extremes, and humidity to add to the speaker's reliability and longevity.

Aluminum Basket: The woofer features a cast aluminum basket, inherently rigid and non-magnetic.

Voice Coil: The voice coil is wound around a 1-1/4" diameter low-mass Kapton former, ensuring no coil deformation.

Tweeter

Inverted Dome Tweeter: The TN53K tweeter is an Aramid fiber inverted dome, producing a broad sound stage. The tweeter has a Neodymium magnet to provide a powerful magnetic field for the voice coil, while still maintaining the tweeter's compact dimensions. The dispersion is controlled by the twin radius wave guides to improve staging and directivity.

Mounting Options: The tweeter can be surface or flush mounted. Focal recommends flush mounting and the flush mount cup is built onto the tweeter housing. The included angled cup allows surface mounting at approximately 30°.

Crossover

Components: Focal uses audiophile grade polypropylene capacitors and air core inductors to ensure high definition and a dynamic sound quality.

Tweeter Level: You can adjust the output level of the tweeter on the crossover to -6 dB, -3 dB, or 0 dB. There is also a switch (on/off) to boost the tweeter's extreme high frequencies.

Midrange Level: Set the midrange output to High or Flat to match their position in the car. When the mids are installed low in the door, some of the output is absorbed by the upholstery and they benefit from the High output setting. This High setting bypasses the low-pass crossover, using the woofers' natural mechanical roll off instead.

Crossover Slopes: The crossovers allow adjustment of the high-pass filter slope. The woofer can be run full range and use its natural mechanical roll off, or be crossed over with a 12 dB per octave slope. The tweeter can be crossed over with a 12 dB or 18 dB per octave slope. The crossover frequency is 3,800 Hz.

Wiring: The inputs and outputs are screw terminals; they will accept bare wire or spade connectors up to 0.315" wide.

Dimensions

Tweeters:

	Flush Mount	Angled Surface Mount
Mounting Height	0.277"	2.291"
Depth	0.755"	0.531" (screw depth)
Frame Diameter	2.265"	2.496" x 3.806"
Cutout Diameter	1.998"	N/A