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CableTruth 303T

Optical digital audio cable (6 feet)

Item #: 865OPT6FT

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Don't cheap out on this crucial link

Whether you're feeding stereo music to a DAC or Dolby® Digital surround sound to your receiver, the optical cable is a crucial link in the signal chain and shouldn't be overlooked. Cheaply made optical cables can have imperfections in the fiber that cause light to "scatter," compromising signal integrity. The CableTruth 303T optical cable uses a special low-dispersion polymer fiber to minimize signal corruption and timing errors. It provides a distortion-free connection between digital audio source components — CD players, Blu-ray or DVD players — and A/V receivers, DACs, and even some sound bars. The cable has full-size Toslink connectors at each end.

Why fiber instead of copper?

Optical cables carry signals as pulses of light rather than a stream of electrons, so they are virtually impervious to magnetic or electrical interference. Unlike cables made of wire which require some type of metal connector to transfer the signal between components, in an optical cable, the very tip of the connector is the fiber itself, and it requires special polishing to reduce light refractions.

Product Highlights:

  • low-dispersion fiber minimizes digital timing errors
  • finely-polished polymer fiber conductor
  • full-size Toslink connectors
  • warranty: 5 years
  • Our 60-day money-back guarantee

CableTruth 303T Reviews

Average Customer Review:

12 Reviews

Very good shorter optical cable

Written by: Bill from Columbus OH on January 18, 2016

Crutchfield Customer Review (What's this?)

Great value in a shorter optical cable.

Pros: Value


Great cable for digital sound

Written by: Tommy from New York on January 16, 2016

Crutchfield Customer Review (What's this?)

So far so good. I am using this cable with a Toslink/Mini-Optical adapter attached to plug into the headphone jack of my Apple MacBook Pro computer. This bypasses the DAC in my computer and sends the digital signal directly to the high performance DAC in my stereo receiver. The resulting sound is amazing. The cable is sturdy enough to handle the wear and tear of constant plugging and unplugging. This cable is great bang for the buck.

Pros: Durable. Great sound.

Cons: None.

CableTruth 303T

Written by: HarryM from South Carolina on October 5, 2015

Crutchfield Customer Review (What's this?)

Priced right

Pros: Price


It works

Written by: rybitski from Virginia on August 28, 2015

This item does what it is supposed to and beat the price of the equivalent cable sold locally. It isn't as nice as some of the cables I have purchased from online for half the price, but I was in a pinch and needed something locally. Feels fragile, but hey, it's a strand of glass.

Pros: Works.

Cons: Costs more than better constructed cables online.

Great cable

Written by: Lee in San Jose from California on August 2, 2015

Crutchfield Customer Review (What's this?)

Not much to say. It's a cable. But it's an excellent cable.

The construction is excellent. Nice strain relief at the termination. The cable itself is light and flexible.

Worked out of the box without a hitch.

If you haven't used optical cable before, notice the protective cover at the ends. They are small.



Cable Truth 303T

Written by: Keith M from Illinois on July 13, 2015

Crutchfield Customer Review (What's this?)

I bought this cable on a Crutchfield reps recommendation. It was $15 cheaper than an Audio Quest cable. It seems to work well, I have no complaints.

Pros: price

Cons: none

Great Digital Cable

Written by: D Allen from Perry, GA on February 9, 2015

Crutchfield Customer Review (What's this?)

Great digital cable - easy to install

Pros: Easy to install

Cons: None

CableTruth 303T

Written by: Deeksmom from California on January 13, 2015

Crutchfield Customer Review (What's this?)

The cable increased the sound quality. Replaced the cable that came with the soundbar with the CableTruth 303T

Pros: Easy to install


Cable 303T

Written by: Cable from Milbury, MA on October 5, 2014

Crutchfield Customer Review (What's this?)

A must cable for your digital audio needs

Pros: Exactly as described

Cons: None

Another plus for AudioQuest

Written by: Mark H. from Kalamazoo, MI on July 28, 2014

Crutchfield Customer Review (What's this?)

I already use AudioQuest cables for my speakers, so when the Crutchfield agent told me these were manufactured by the same company, I didn't hesitate to buy. I really don't know too much about this sort of thing, but the cable is very well-made and delivers the signal from my televison to my amplifier without any distortion. The price is very reasonable as well. Definitely recommended!

Pros: Excellent shielding, insulation, and flexibility.

Cons: I only needed a 3 foot length.

Best cable ever!

Written by: REichard G from Salt Lake City, Utah on April 27, 2014

Crutchfield Customer Review (What's this?)

Excellent! Replaced my regular RCA cables with this single unit. Easy to install, best sound quality ever!

Pros: Simple installation.

Cons: None


Written by: JV from McComb, MS on April 6, 2014

Crutchfield Customer Review (What's this?)

needed the length, works just fine.



Hands-on research

What's in the box?

  • 6' Optical digital cable

Product Research


Optical (Toslink) Digital Cable: The CableTruth Toslink optical cable uses a specifically specified low-dispersion polymer fiber. This minimizes signal corruption and timing errors that occur when a normal fiber's imperfections cause light to "scatter", forcing the light signal to take multiple paths within each fiber. Each path has a slightly different length, introducing dispersion-over-time, causing partial misinterpretation of the digital data stream and inferior sound.

  • Low-Dispersion Fiber Minimizes Digital-Timing Errors
  • Polished Optical Interface Minimizes Light Dispersion
  • Inner-Armor Layer Protects Optical Fiber
Note: Remove the plastic protectors on the optical cable and on equipment. Insert the connectors; they are "keyed" and will only fit one way.

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 verify what’s in the box, 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.

Customer Q&A

Crutchfield asked  
Why did you buy this?

I trust Crutchfield with quality products. [ JIM  Jan 10, 2016 ]
to use with new amp [ charles  Jan 09, 2016 ]
I wanted everything I need to come at the same time for hook up! Once my sound bar gets here, I want to hook it up and enjoy!! [ Mike  Jan 01, 2016 ]
Recommend by customer service representative. [ TERRY  Dec 12, 2015 ]