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Infinity Reference 6830cs

6" x 8" 2-way Reference Series Component System (REF6830CS - also mounts in most 5" x 7" locations)


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Reference Quality Sound from Infinity

Never has getting high-end sound in your car been easier. The Infinity Reference 6830cs car speakers are the perfect solution to aftermarket speakers. With the 2 ohm voice coil, these speakers are ideal for running directly off of a headunit or for use with a aftermarket amplifier. Infinity engineers have combined the Plus One+ cone with the high roll rubber surround to help retain the integrity of the sound. Get more from your audio system with the Infinity Reference 6830cs.

True Four Ohm Technology

The engineers are Infinity have developed a speaker that works for all applications. The True Four Ohm Technology used in these speakers make it perfect for running directly of a headunit or with an aftermarket headunit and amplifier. All of the speakers in the Infinity Reference line feature a 2 ohm voice coil. However, when you factor in the small OEM speaker wire of most vehicles and the heating in the voice coil during use, the impedance actually seen by the amplifier will increase. Infinity has adjusted the speaker to be safely connected to any headunit.

  • 6" x 8" 2-way Reference Series Component System
  • Power Handling:
    • Peak: 540 watts per set / 270 watts each side
    • RMS: 180 watts per set / 90 watts each side
  • Plus One+ woofer cone design offers greater bass output and increased efficiency
  • Injection-molded polypropylene cone woofer
  • Hi-Roll rubber surround
  • 1" Edge-driven textile dome tweeter
  • Starfish mounting brackets for easy tweeter installation
  • 2-way external crossover network
  • 2 ohms impedance
  • True Four Ohm Technology - speaker's 2 ohm impedance combines with OEM speaker wire impedance for a 4 ohm load
  • Top-mount depth: 2-7/16"
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Priced Per Complete Component System: 2 midwoofers, 2 tweeters and 2 crossover networks.

Product History:

Infinity 6830cs thumbnail
(newest, current model)
MTX TC8001 thumbnail
(previous model, replaced by Infinity Reference 6830cs)

Speaker Specifications

This is the manufacturer product line of speakers.
Priced Per
Car Speakers are typically sold in pairs so you will receive 2 speakers for each speaker purchase on speakers marked "Priced Per Pair". If a speaker is marked "Priced Per Each" then the speaker is sold individually and each purchase you make will result in 1 speaker. High-powered tweeters, midrange and full-range pro audio for car speakers are typically sold per each speaker.
Speaker Size
Refers to the size of the speaker measured in inches. Every vehicle has standard application sizes. Please use our vehicle fitment guide for your vehicle's specific speaker sizes if you do not know them.
6" x 8"
The number of individual drivers in a car speaker. Speakers with 2 drivers are known as a 2-way, and 3 drivers are known as a 3-way. Component systems are often referred to as "separates" because the tweeter is not attached to the midwoofer (main speaker driver) and mounts separately in a location such as a door post. Component systems typically come with an external crossover so you can easily adjust the high and low frequencies sent to both the midwoofer and the tweeter. Center channel speakers are great for those looking to have surround sound in their vehicle.
2-way Component System
Tweeter Design
Designs such as cone, dome, semi-dome, balanced dome, and whizzer are most popular. Cone tweeters are simple, efficient and typically are the most reasonably priced. Dome tweeters are used in most home speakers, and provide a smoother and more accurate sound. Semi-dome design is one with a dome placed inside a cone. A Balanced dome driver is a semi-dome with equal reproduction area given the cone and dome portions of the driver. A whizzer tweeter is a separate tweeter cone driven by the voice coil of the woofer.
Tweeter Size
Refers to the size of the tweeter. Typically, smaller tweeters produces less output with higher frequency response.
Tweeter Composition
Materials such as polypropylene, silk, cloth, and paper are the most common, where as many more recent tweeters are now manufactured with composites such as Aluminum, Titanium, Mylar, and other materials.

PEI is an acronym for "Polyetherimide" which is an amorphous, amber transparent, high-performance thermoplastic.

Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Injection Molded Polypropylene (IMPP)
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
270 watts
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
90 watts
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
93 dB
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
49 - 21,000 Hz
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
2 ohms
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.

Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
Cutout Dimensions
Refers to the dimensions of the hole, measured in inches, required to contain the speaker.
Speaker Grilles
A grating or screen of metal or plastic bars or wires, mounted in front of a speaker as protection. If yes, the speakers will include matching speaker grilles. If no, there are no grilles included.
Number of Speakers
This is the number of speaker that is included in the package. Each purchase will result in receiving the number of speakers indicated here. Please note that some items will have multiple woofers in the same enclosure. For sets of component speakers, this number will refer to the number of sets of speakers (For example, 2 would indicate the purchase includes 2 woofers and 2 tweeters).

Please refer to the product image and description for further details about the speaker.

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating


Mandeville, LA

Love Infinity

December 3, 2012

Great speakers, very natural, a little bright, but well worth the money. Complete kit with lots of extra parts for install. Sonic is great, price is the best, price match is even better!

1 of 1 found this helpful

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Albuquerque, NM

Clean and Clear!

October 7, 2011

These sound really nice. Had them originally ran from the HU, but are now amped by 90watts from a rockford 5 channel. Great sounding speakers and almost TOO LOUD! I have my high pass filter on the amp and HU set to where I like, and I really like the sound that these speakers put out. This is my first set of components, and I am not disappointed. The tweeters sound good on the 0db setting and they are not too harsh, but are very loud. If you like the price, then get these, because they are worth it.

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Boulder, CO

Great Speakers

July 26, 2010

I would definitely recommend this product to anyone who wants awesome speakers for the price of cheap ones. If i remember correctly, sonicelectronix had them priced 40% down from the regular retail price. They probably arent the quality of $500 speakers but they must be close. I listen to music LOUD and they have worked perfectly from the day i bought them.

1 of 1 found this helpful

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Midlothian, TX

Infinity Ref 6830cs

March 27, 2012

Good speakers but not as clean as I expected from Infinity.

1 of 2 found this helpful

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Mansfield, TX

Great Speakers

February 26, 2011

These speakers are great for the money and extremely able to build upon. I first ran these speakers with the passive crossover it comes with powered by a pioneer headunit. They sounded great! Clean and clear. Then I hooked the same set with the same crossover powered by my clarion xh5410, and they sounded great, but with more power they were louder and definetly started singing. Now finally I got rid of the passive crossover and am running them off the same clarion amp but with a headunit that can actively cross them over. These can be used for stock replacements and sound night and day difference and when you go active they still sound amazing. I am running two sets of these comps and I love em. You just can not go wrong with these at all. For the guy that wants to replace stock speakers up to the audiophile who wants a good comp set to brighten up his mids and highs in a more advanced system.

1 of 2 found this helpful

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League City, TX

Solid performance

January 17, 2010

Installed in my f-150. I downgraded to these from the equivalent kappas because of the giant kappas tweeters. The reference tweeters are more conventional in appearance although I had to spray paint their mounts to black from the original silver to match my interior. Installation was easy and the sound performance is solid. The mid bass doesn't hit as hard nor is it as full as the kappas. So, if you can handle the look of the kappa tweeter and the increase in price I would opt for the nicer kappas. The silver hockey puck sized tweeters were too much for me.

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Quality Speakers

December 25, 2009

Put these speakers in front and rear doors in my Ford F250 2001. Perfect fit, and quality sound.

I don't have anything bad to say about these :)

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Mooresville, NC


December 22, 2011

These speakers sound wonderful even with just 21 watts (CEA2006 compliant that is.) The highs are sharp, but not harsh and the woofers punish my front doors in my Mazda 3. They aren't even fully broken in yet and this is just with a very reasonable +2 dB on the equalizer set with the 50 Hz curve. I haven't done my rear speakers yet with the Infinity coaxials, but I will be soon. The difference between my old speakers and these is just amazing. The only thing I don't like is the size of the crossover, but quality parts are still worth it.

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Accessory Tools and Products

Accessories added

NVX 25 ft. of True Spec 12 Gauge Speaker Wire

100% OFC wire with EnvyFlex metallic jacket insulates and protects against damage from extreme conditions.

Your Price $39.99

Streetwires 25 ft. of True Spec 12 Gauge Speaker Wire

You need speaker wire to connect your speakers!

Your Price $44.95

Belva 23 ft. of True Spec 12 Gauge Speaker Wire

100% Copper Clad Aluminum, high strand count with ultra-flexible PVC blended jacket for easy installation

Your Price $14.99

12-10 AWG Quick Disconnect Connectors

These yellow quick disconnect connectors make it easy to connect and disconnect speaker wire your to your new aftermarket speakers!

Your Price $6.99

NVX SDDK12 Door Kit

Eliminates speaker panel distortion and reduces door vibration, rattles and squeaks!

Your Price $49.99

Dynamat Xtreme Door Kit 10435

Enough sound dampening to cover most doors!

Your Price $59.99

Stinger Roadkill Door Kit

Use this to eliminate rattle from your doors!

Your Price $46.99

Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $16.99

Universal Wire Puller & Grabber

Running wires has never been easier! This wire puller allows you to run wires through those hard to reach places!

Your Price $6.99

Xscorpion 9-Piece Nylon Plastic Pry and Chisel Tool Set

Easily removes dash/trims, door clips, panels and pins, rubber grommets and vehicle emblems.

Your Price $14.99

Xscorpion WDCR2 Window and Door Clip Remover

Removes and installs handle and window crank clips.

Your Price $6.99

3 in 1 Wire Quick Splice T-Tap and Butt Connector Crimper + Wire Cutter

Used for cutting copper and aluminum wires up to 8 gauge.

Your Price $29.99

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Product Summary


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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Infinity Reference 6830cs

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