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AudioQuest Black Lab

Subwoofer cable (5 meters/16.4 feet)

Item #: 703BLAB5M

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26 Reviews | 2 questions - 9 answers

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Help your subwoofer sound its best

AudioQuest Black Lab

AudioQuest's Black Lab cable delivers all the deep bass goodness your powered subwoofer is capable of. This cable features two identical conductors, and each conductor is a single, unbroken strand of AudioQuest's high-purity Long-Grain Copper. Solid conductors eliminate electrical and magnetic interference that can make multi-strand conductor cables sound brittle.

High-quality connectors eliminate the weakest link

Black Lab features RCA connectors made of gold-plated copper. The connectors are fastened by cold welding — a solder-less process that uses high pressure and silver paste to minimize signal loss. By contrast, solder tends to impede the signal, and heating the copper conductor can negatively affect its performance.

Product Highlights:

  • two solid Long-Grain Copper conductors eliminate "strand-interaction" distortion
  • air-filled foamed-polyethylene insulation minimizes energy storage and its associated distortion
  • 100% coverage metal shield with AQ's Noise Dissipation System to resist RFI interference
  • cold-welded gold-plated RCA connectors for reliability and resistance to corrosion
  • built-in ground wire with spade lugs to prevent hum
  • smooth PVC jacket
  • warranty: 5 years
  • Our 60-day money-back guarantee

AudioQuest Black Lab Reviews

Average Customer Review:

26 Reviews

Good Product

Written by: Jon from New York on January 17, 2016

Crutchfield Customer Review (What's this?)

Works Well, appears durable



Awesome Cables

Written by: Dunamis from Hawaii on January 10, 2016

Crutchfield Customer Review (What's this?)

The old. Onkyo Receiver, Bose 6.1 system that's 10 years old, still sounded good and was working well, buy It was out of date. No bluetooth, wifi, usb, etc... In with the New! Yamaha Aventage RX-A840 purchased from a different online retailer. Everything else is from Crutchfield. Cables are AudioQuest Pearl & Cinnamon HDMI. Speaker cables are AudioQuest Type 4 & Rocket 33 for speakers & Black Lab for Sub. SVS SB-1000 Sub (Scratch & Dent) Focal Chorus 705 Bookshelf Speakers & Focal Chorus 716 Floor Speakers. Center Channel Klipsch RP-440C. And all housed in a Rosewood 7ft x 9ft entertainment center with a 3 yr old LED Samsung 50 in TV.

I probably spent $3K 10 yrs ago and I did not use AudioQuest cables. The old system was nice, but my ears have matured away from Bose since upgrading my car system to Focal, listening to Hi-Res music files with a DAC, and having high end Headphones and Earbuds. I understand there are much nicer systems for a lot more money. But, for the money, I am a very happy customer. I would have loved to use a Focal Center, but I needed a center that could hold my TV, and Klipsch had one.

The sound is amazingly Smooth, balanced, and powerful! Everything blends well despite being a front facing 5.1 system. I get Great separation on movies, music, and TV programs. Yamaha does an excellent job of processing and I don't miss having speakers behind or beside me. Very clean Highs, Mids & Lows singing in perfect harmony...

Pros: Build Quality! Sound! Warranty!

Cons: None

Audio Quest Black Lab Subwoofer

Written by: Mr, D. from South Carolina on January 9, 2016

Crutchfield Customer Review (What's this?)

Quality Sound Reproduce

Pros: True Sound Coming Thru

Cons: None

subwoofer cable

Written by: Jeff M from Georgia on January 6, 2016

Crutchfield Customer Review (What's this?)

great subwoofer cable, no complaints


Cons: none

Does what a 15 dollar cable does

Written by: freedomfries from California on December 12, 2015

Crutchfield Customer Review (What's this?)

My Crutchfield advisor added this cable to my order when we specced out a system. I needed an LFE cable, but this much for this thing??? I was surprised when I saw the price in the order confirmation. I'm alright with buying heavier gauge copper wires for high end speakers and whatnot, to an extent. I have 20 year old monster cable that still works great. But here I think you get about 20 dollars worth of actual value and 30 dollars hype out of these. It's an LFE cable, how fancy must it be?

Pros: Nice looking

Cons: expensiiiiive, can't really tell it makes a signal difference.

Wonderful Product

Written by: Robert - Boyne City from Michigan on November 27, 2015

Crutchfield Customer Review (What's this?)

Very well made sturdy cables

Pros: great product

Cons: none

Decent AV Accessory

Written by: HBarker_Stroudsburg_PA from Pennsylvania on November 21, 2015

Crutchfield Customer Review (What's this?)

Nice cable that has a decent length that facilitates speaker placement in the listening area. It made a distinct difference in the sub woofers performance.

Pros: Price is not excessive and the addition of grounding wires can prevent humming noise issues that occurs with other cables.


7.2 Surround

Written by: Anonymous from North Carolina on November 17, 2015

Crutchfield Customer Review (What's this?)

I have the (255C-RT) and in walls (RC55i's) and 2 Polk Subs (PSW 108 and 111) for a 7.2 effect. It's a great combo for the size of room I have!



Good Quality Cable

Written by: Jim from Denver, CO on October 27, 2015

Crutchfield Customer Review (What's this?)

I was very pleased with this cable. The sound quality is great and it is flexible enough for tight spaces.

Pros: Quality of construction and sound.

Cons: Cost

Just a great wire

Written by: Dad from Washington on October 18, 2015

Crutchfield Customer Review (What's this?)

I needed a subwoofer wire and this is what was recommended by advisor and they work great

Pros: Simple as can be great functioning

Cons: The only downside is I wish they would make this in a shorter wire the sub woofer is right beside the wall and it would be nice to have a short subwoofer wire

Subwoofer Cord

Written by: SteveL from Ohio on July 26, 2015

Crutchfield Customer Review (What's this?)

Great product!



Great cable

Written by: Flodon from Menomonee Falls on June 3, 2015

Crutchfield Customer Review (What's this?)

Great cable - sound quality is fantastic, and the cable was relatively easy to feed through the wall.



Worked great after install with SoundSystem

Written by: renee from Georgia on April 10, 2015

Crutchfield Customer Review (What's this?)

needed the cord for Samsung HD 4k TV and Subwoofer. Worked perfect after install. RAdio Shack cords didn't work as well. had to return.



AudioQuest black lab subwoofer cable

Written by: Anonymous from Petaluma California on April 3, 2015

Crutchfield Customer Review (What's this?)

Awesome subwoofer cable made my subwoofer sound twice as loud and clear. Another great product from AudioQuest. Also thank you for the great customer service from Crutchfield.

Pros: Better sound

Cons: None

Black Lab

Written by: Anonymous from Rhode Island on January 22, 2015

Crutchfield Customer Review (What's this?)

Works Great with My new Sub. Produces great Quality



Great Cable

Written by: Mark L. from California on January 19, 2015

Crutchfield Customer Review (What's this?)

This is a amazing cable and you get what you pay for. All my cables for my home theater system are Audio Quest and yes good cables make a big difference in picture and sound. Thank you Crutchfield

Pros: Only Audio Quest


Black Lab

Written by: Brian from New Jersey on January 18, 2015

Crutchfield Customer Review (What's this?)

No hum. Quality cable



Amazing cable

Written by: Matt from Queens, New York on January 11, 2015

Crutchfield Customer Review (What's this?)

Great subwoofer cable. Worth the extra money . Can defiantly hear the different from the last cable I bought.

Pros: Great value. Nice thick cable.

Cons: Nothing as of yet.

Very nice cable

Written by: Dan from West Virginia on January 5, 2015

Crutchfield Customer Review (What's this?)

Very nice quality, and does its job very nicely. No hums, statics or problems what so ever. Highly recommend.

Pros: No hums, or static. And seems to be nice quality.

Cons: none, wish I would have got a longer one:P

Audio Quest

Written by: Mark from Nebraska City on December 29, 2014

Crutchfield Customer Review (What's this?)

New to Audioquest but the cables seem to do well.

Pros: New to brand so still listening

Cons: None

Audio Quest Black Lab

Written by: Lee H. from Atlanta, Ga on November 29, 2014

Crutchfield Customer Review (What's this?)

Great speaker wires! Crutchfield gave me a good recommendation!

Pros: Good Clarity

Cons: None

AudioQuest Black Lab

Written by: Anonymous from ca on November 8, 2014

Crutchfield Customer Review (What's this?)

Exactly what I ordered



Great Sub Cable

Written by: KW from Austin, TX on September 9, 2014

Crutchfield Customer Review (What's this?)

No hum, just great sound!



AudioQuest Black Lab

Written by: JB from Shingle Springs, CA on September 4, 2014

Crutchfield Customer Review (What's this?)

Great sound! Worth the price!

Pros: Great sound

Cons: Wish it were less expensive...but worth it for the great sound quality

Go Bye-Bye Hum

Written by: BUBS from Charlottesville, VA on June 23, 2014

A few months ago I purchased a powered sub-woofer (from Crutchfield). After hooking up to an old sub-woofer cable which ran ~ 35 feet under my living room, I noticed a hum in certain locations of the room. With the advice of my Crutchfield salesperson, I began adjusting the amount of gain and low pass frequency on the new sub-woofer. This seemed to work on and off for a few days. However, since this humming annoyance continued to repeat itself, my salesperson had me examine the old cable and I noticed the end from the receiver differed from the end going to the sub-woofer. This wiring had been installed by someone else and there was a short extension cable at both ends of the sub-woofer cable to meet the distance required! So my salesperson had just the answer with this 39.4 foot Audio Quest Black Lab cable. Since then I have thoroughly enjoyed great bass and freedom from hum! ZILCH! I also think the price for this lengthy cable was very reasonable and I might add even better with some reward points!

Pros: Not bulky or "stiff" so easy to thread through a small hole to run beneath a floor and be out of view. Allows for a clean and "healthy" bass sound with no hum or interference.

Cons: None to date.

AudioQuest Black Lab Subwoofer Cable

Written by: Alex from Great Bend KS on May 27, 2014

Crutchfield Customer Review (What's this?)

So far so good. The Sub sounds great! Good quality cable.

Pros: Great quality, and great sound from my sub.

Cons: None

Hands-on research

What's in the box?

  • 16.4' Mono-RCA subwoofer cable (w/ a male RCA connector and 8" ground wire on each end)

Product Research


Solid Long-Grain Copper (LGC) Conductors: Solid conductors eliminate strand-interaction distortion. Black Lab's solid Long-Grain Copper allows a smoother and clearer sound than cables using regular OFHC (Oxygen-Free High-Conductivity) copper. OFHC is a general metal industry specification regarding "loss" without any concern for distortion. LGC has fewer oxides within the conducting material, less impurities, less grain boundaries, and definitively better performance.

Foamed-Polyethylene Insulation: Black Lab uses air-filled Foamed-Polyethylene Insulation on both conductors because air absorbs next to no energy and Polyethylene is low-loss and has a benign distortion profile. Thanks to all the air in Foamed-PE, it causes much less of the out-of-focus effect common to other materials.

Metal-Layer Noise-Dissipation System (NDS): AudioQuest's Noise-Dissipation System prevents a significant amount of RFI from reaching the equipment's ground plane.

Symmetrical Coax Geometry: Identical positive (+) and negative (-) conductors prevent the shield being used as an inferior audio conductor.

Cold-Welded Gold-Plated Plugs: This plug design allows for a connection without the use of solder, which is a common source of distortion. Because the ground shells are stamped instead of machined, the metal can be chosen for low distortion instead of machinability.

Grounding: If you hear noticeable hum in your system after connecting your subwoofer, please attach the subwoofer cable's ground leads to your audio gear. Some audio equipment have a ground (GND) connection on the back-panel, if not, attach the ground spade lugs to any screw on the equipment chassis of both the source and the subwoofer. Usually, this wire will not need to be connected.

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?

It was the only option for a short (6') cable [ Stephen  Feb 04, 2016 ]
The sound from my sub improved when I switched to this cable. [ mitchell  Dec 16, 2015 ]
Recommendation from tech support [ Philip  Jan 23, 2016 ]
I use only AudioQuest HDMI cables, and I'm pleased with performance. Ergo ............................. [ Dean  Jan 18, 2016 ]
I only use Audioquest cables for all my audio needs. They have the best cables for the money producing the best sound... [ Aaron  Dec 31, 2015 ]
Great product [ Benjamin  Feb 03, 2016 ]
Needed accessory for powered subwoofer purchase. With Crutchfield return policies, if it's not right I can always return/exchange. [ JOHN V  Dec 19, 2015 ]

2 questions already asked

Yes you can run this in your wall .I have mine running under the sub floor and carpet no problems.The sound quality from the Infiniti sub is excellent [ MICHAEL  Jul 02, 2015 ]
The cable is perfectly acceptable, but the problem will be snaking the thick cable through the walls. So unless you are addressing new construction or a substantive remodeling job, you might want to consider cable raceways or channels. [ GARRETT  Jul 01, 2015 ]
Hi Aaron, Yes it is. Unfortunately I had mine go bad but they come with a five year warranty. So I sent it back to audio quest and they sent me another. I have two but of course the one that went bad was the one in the wall. I hope this helps. Don. [ DONALD  Jun 30, 2015 ]
Yes it is. I pre-wired my house with two of these for my theater. Just remember not to run the wire parallel with the electrical in your home. [ Christopher  Jun 30, 2015 ]
I used it in the wall and it seems to work just fine. [ Steve  Jun 30, 2015 ]
I Put it inside my wall and haven't had any problems with it. [ Steven  Jun 30, 2015 ]
Sorry for the delayed respond. I'm guessing you. I would think the connections are the same. I only use it for my sub but it works like any other audio cable. [ Chase A.  Jan 06, 2016 ]
No for a powered sub not for center [ TIMOTHY M  Jan 04, 2016 ]
Yes. I use it for my center speaker. [ Lee M.  Jan 04, 2016 ]

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Audioquest Irish red  5 meter subwoofer cable

Get a subwoofer cable that sounds and looks better.

The AudioQuest Irish Red offers these features:

silver-plated solid copper conductors for superior sound quality (silver layer is 0.5% of total conductor)

black-and-red braided covering