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Focal Performance R-100C

Auditor Series 4" coaxial speakers

Item #: 091100C

In Stock

7 Reviews | Ask Questions

Installation gear for most cars

Your price: $89.99 pair Earn up to 90 Rewards points

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R-100C magnet

The R-100C's large magnet guarantees superior power handling.

Affordable Focals

Listening to Focal speakers is an absolute pleasure, and now you can do it with a guilt-free conscience. Focal's Auditor Series speakers offer solid performance at a competitive price.

Speaker up

Make no mistake, these Auditor Series R-100C 4" coaxial speakers will put your factory speakers to shame. Years of weather damage and use will degrade the paper cone speakers that came with your car. Focal built this speaker's polypropylene cone and butyl rubber surround to withstand that kind of damage while delivering robust sound. You'll enjoy a new richness of bass and midrange articulation while gaining an added dimension in the high frequencies, thanks to the R-100C's tweeter. Focal also includes grilles for a custom installation. This is an upgrade you won't regret.


  • 2-way car speakers (pair)
  • 4" polypropylene woofer cone with butyl rubber surround
  • Mylar tweeter
  • rigid steel basket
  • mesh/ABS mesh grilles included
  • 2-30 watts RMS power range (60 watts peak)
  • frequency response: 80-20,000 Hz
  • sensitivity: 84 dB
  • impedance: 4 ohms
  • mounting depth: 1-7/8"
  • warranty: 1 year
  • Our 60-day money-back guarantee

Focal Performance R-100C Reviews

Average Customer Review:

7 Reviews

Focal Performance R-100C

Written by: Anonymous from New York on October 21, 2015

2011 GMC Sierra
Crutchfield Customer Review (What's this?)

It is hard to believe that a speaker so small can sound so good. I will be using Focal from this point on.



Great coaxials

Written by: Loudest spark from Georgia on October 4, 2015

2015 Chevrolet Spark
Crutchfield Customer Review (What's this?)

These are natural, un-hyped sounding speakers. You can really hear the details in reverb trails. There is a surprising amount of midbass. I just crossed it over around 120 hz with a 12" ported subwoofer. I am really happy with these Focals. You shouldn't use a head-unit, Parrot or anything to power them. You need an amp for these!


Cons: No bi-amp capability

Nice Speakers

Written by: Mario from Florida on September 11, 2015

2003 Porsche Boxster
Crutchfield Customer Review (What's this?)

I like this set a lot..I replaced my original Porsche speakers with pionner ones at first, it did do much... I ended up paying a little more for the Focal... It was a smart choice.

Pros: Nice loud base

Cons: none

great speakers

Written by: Denis M from fort collins, CO on May 26, 2015

2004 Subaru Impreza WRX
Crutchfield Customer Review (What's this?)

The speakers are very nice quality and not only do they perform well, they are also good looking. They were a slight pain to install only because i needed to make a cutom bracket, however that is because i have a very limited mounting space in my 2004 wrx. Overall very quality and would recommend

Pros: Sound good. For small speakers they have good lows. attractive

Cons: Did not fit the 2004 wrx without a custom bracket.

Very disappointed in Focal R-100C

Written by: Joe from Texas on February 14, 2015

Crutchfield Customer Review (What's this?)

Very disappointed in the sound from the Focal Performance R-100C. I have a 1989 4X4 Toyota truck with stock stereo unit. I have replaced the stock speakers once before but factory speakers are no longer available. So decided to find a replacement. Focal has an excellent reputation so decided to splurge on these. Passenger side mounts into a port enclosure housing, so installed it and it distorts bad at 1/3 volume or greater. Didn't bother to waste my time on replacing the driver side speaker. And this is the factory head unit. The stock speakers sound so much better with no distortion. So I will replace the surround on the factory speaker and re-install these. Unfortunately a $$$ mistake for me.

Pros: Mounted easily

Cons: Distortion

focal r100c 4 inch

Written by: Big Jake from Vancouver WA on January 8, 2015

1994 Toyota Pickup
Crutchfield Customer Review (What's this?)

Outstanding for running off only deck power. Very happy. Perfect compliment to your system. If running sub woofer get bass caps. Get the baffles makes big difference. Very hard to find these for some reason in stores but Cruchfield saves the day again .thanks Installed in '94 Toyota ex cab. Happy customer in Pacific NW.

Pros: Great sound for a 4"

Cons: None

Focal Performance R-100C

Written by: afshort1 from delaware on November 28, 2014

2008 Volkswagen Rabbit
Crutchfield Customer Review (What's this?)

great quality and awesome price! definitely recommend to someone!


Cons: none

Hands-on research

What's in the box?

Download owner's manual

  • Two 2-way speakers
  • 2 Grilles
  • 8 Speed clips
  • Eight 1" Self-tapping screws
  • Owner's manual (English/ French/ German/ Spanish/ Italian/ Portuguese/ Chinese/ Russian)
  • Specifications printed on box

Features and Specs

Design 2-way
Tweeter Design Dome
Tweeter Composition Mylar
Woofer Composition Polypropylene
Woofer Surround Butyl Rubber
Parts Warranty 1 Year
Labor Warranty 1 Year
Sensitivity 88 dB at 2.83 volts
84 dB at 1 watt
Frequency Response 80 - 20k Hz
RMS Power Range (Watts) 2-30
Peak Power Handling (Watts) 60
Impedance (Ohms) 4
Top-mount Depth (Inches) 1 15/16
Bottom-mount Depth (Inches) 2 1/8
Cutout Diameter or Length (inches) 3 11/16

Product Research


Woofer: The polypropylene cone and butyl rubber surround are resistant to the temperature extremes and humidity often found in the automotive environment, adding to the speaker's reliability and longevity.

Tweeter: Each speaker features a Mylar dome tweeter for crisp highs.

4/2 Hole Compatibility: Most 4" factory speakers use four mounting screws, however, in some vehicles, only two are used. The R-100C's mounting tabs can be removed, allowing installation in 4-hole or 2-hole applications. Care should be taken handling the speaker after any tabs are removed because the broken edges may be sharp. Please check the Find What Fits Your Car application to confirm fit in your vehicle.

Our Product Research Team

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Customer Q&A