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Infinity Reference 6820cs

6" x 8" / 5" x 7" 2-way Component System (REF6820CS)

4.5

(2 reviews)

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The product on this page is discontinued.

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  • 5" x 7" Reference Series Component System
  • Power Handling:
    • Peak: 540 watts per set / 270 watts each side
    • RMS: 180 watts per set / 90 watts each side
  • Injection-molded polypropylene cone woofer
  • Rubber surround
  • 1" Textile dome tweeter
  • Tweeter mounting kit with Starfish OEM adapter included
  • Optimized passive crossover networks with tweeter adjustment (-3dB - +3dB)
  • 2-way external crossover network (18 dB/octave, 3,500 Hz high- and low-pass)
  • Mountable on 6" x 8" locations
  • 2 ohms impedance
  • Top-mount depth: 2-3/8"
  • 1-year SonicElectronix.com warranty

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

Product History:
Infinity Reference 6820cs thumbnail
(newest, current model)
Infinity Reference 6810cs thumbnail
(previous model, replaced by Infinity Reference 6820cs)
Speaker Specifications
Speaker Size5" x 7" (also mounts in most 6" x 8" locations)
Design2-way Component System
Tweeter DesignDome
Tweeter CompositionTextile
Woofer CompositionInjection Molded Polypropylene (IMPP)
Woofer SurroundRubber
Peak Power Handling270 watts
RMS Power Handling90 watts
Sensitivity93 dB
Frequency Response49 - 21000 Hz
Impedance (Per Voice Coil)2 ohms
Top-Mount Depth2-3/8"
Bottom-Mount DepthN/A
Cutout DimensionsN/A
Warranty and Return Policy
Return Policy Standard Return Policy
Customer Review Summary for Infinity Reference 6820cs
Average Customer Rating is 4.5 out of 5 stars:
4.5
based on 2 Reviews
Share your thoughts with others:
Rating Distribution:
5 star:
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50%
4 star:
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50%
3 star:
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0%
2 star:
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0%
1 star:
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what's this?
Average Attributes Rating:
Durability
4.0
Value
4.5
Features
4.0
Design
4.0
Usability
3.5
what's this?
Most Helpful Customer Reviews:
October 20, 2008 Good product.
Review by
Wiliam from Hampton, VA
Overall
Durability
Value
Features
Design
Usability
The best thing about theses are the tweeters,woofers sound great but you have got to back them up with subs,the woofer crossovers allow to much low bass get to the woofers in my opinion,the components as a whole sound great the are loud,not a competition setup, but for the price they will make most happy.
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October 17, 2008 good comps
Review by
jacob from Spring Valley, CA
Overall
Durability
Value
Features
Design
Usability
Ive had these speakers for about a year. They sound good amped and non amped. But you should really get a proper amp if possible, these will really shine once fed more power. Im using an infinity 5350a to power mine.

Be sure to set the crossover to -3dB though for the tweeters or else they will be way to bright.
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Speaker Wire
Upgrade your factory speaker wire to aftermarket speaker wire and hear the difference! Using thicker gauges, newer technology, and higher quality materials, aftermarket speaker wire is key to upgrading the sound in your car.
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20 ft. of 16 AWG KICKER X-Series Speaker Wire20 ft. of 16 AWG KICKER X-Series Speaker Wire
Get high quality sound from Kicker's twisted-pair, true to gauge speaker wire.
$19.99
50 ft. of 14 AWG StreetWires Speaker Cable50 ft. of 14 AWG StreetWires Speaker Cable
Streetwires Super Cable provides a zero-grip insulation for a smooth install as well as true gauge twisted wire construction.
$29.99
Sound Dampening Material
Get optimal sound from your new speakers with some high quality sound dampening material. It will keep the road noise out and the music inside the car.
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NVX SDSK2 Speaker KitNVX SDSK2 Speaker Kit
Eliminates speaker panel distortion and reduces vibration, rattles, and squeaks!
$19.99
NVX SDRLR1 Sound Dampening Rubber RollerNVX SDRLR1 Sound Dampening Rubber Roller
Install your Sound Dampening with ease! This heavy duty rubber roller is designed specifically to install your NVX products!
$8.95
Installation, Tools & Accessories
Get all of the tools and accessories to install your new speakers like a professional, or take your car to an expert and have them installed by redeeming professional installation cards.
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Door Panel & Upholstery Remover ToolDoor Panel & Upholstery Remover Tool
The ideal tool for removing your car's door panels to replace you speakers!
$11.99
Universal Window Handle Remover ToolUniversal Window Handle Remover Tool
Designed to easily remove the manual window handles without breaking any interior pieces.
$4.99
Universal Wire Puller & GrabberUniversal Wire Puller & Grabber
Running wires has never been easier! This wire puller allows you to run wires through those hard to reach places!
$8.99
Tone Generators and Sound Testing Equipment
Optimize your new system's sound quality by testing and calibrating all of your components with these items.
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AutoSound 2000 CD-101AutoSound 2000 CD-101
Low frequency test CD
$12.99
AutoSound 2000 CD-102AutoSound 2000 CD-102
High frequency test CD specifically designed for the set-up and evaluation of sound system imaging and placement.
$12.99
AutoSound 2000 CD-103AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.
$12.99

Product Summary

Manufacturer: Infinity
Model number: 6820cs
UPC: 050667034948
Weight: 8.00 lbs
Internal SKU: 6820cs
Internal product ID: 10436
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Customer Testimonial

Sonic Electronix is an awesome company to order from. Amazing customer service and they talk to you like someone you have known for awhile unlike other companies that talk to you like you are a pile of money! 5 star service

- josh from mexico, ny

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