AudioQuest's cable designs come from years of in-house research and careful engineering, so it's no surprise that even their entry-level subwoofer cable is a strong performer. Enjoy clear, accurate bass from your powered subwoofer with the AudioQuest SUB-A.

Solid conductors improve accuracy and clarity
This cable features two identical conductors, one positive and one negative. Each of the conductors is a single, unbroken strand of long-grain copper. It has a simpler grain structure and fewer impurities than normal oxygen-free copper, so it can provide clearer sound. Solid conductors help eliminate electrical and magnetic interference that can add brittleness to the sound with multi-strand conductor cables.

High-quality shielding, insulation, and connectors
Both conductors are enclosed by a layer of double sided aluminum foil shielding to virtually eliminate electronic noise. The SUB-A cables feature brass RCA plugs with gold plating to guard against corrosion. AudioQuest attaches the connectors with its own specially formulated silver solder for efficient signal transfer.

Product Highlights:

  • two solid long-grain copper conductors
  • double sided aluminum foil shield with 100% coverage for noise-free signal transfer
  • 24k gold-plated RCA connectors
  • built-in ground wire with spade lugs
  • black with black striped PVC cable cover
  • warranty: 5 years
  • Our 60-day money-back guarantee

AudioQuest SUB-A Reviews

Average Customer Review:

24 reviews
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AudioQuest SUB-A

Written By Anonymous, Richmond, VA on Monday, March 10, 2014

Crutchfield Customer Review (What's this?)

Works as advertised. Simple plug and play.

sub cable

Written By Bob F, Draper UT on Friday, March 07, 2014

Crutchfield Customer Review (What's this?)

Was too short!!! had to buy another one

Pros: Hate short wires

AudioQuest SUB-A

Written By lmhatx, Austin, TX on Wednesday, February 19, 2014

Crutchfield Customer Review (What's this?)

Seems to transmit signals flawlessly.

Peace of Mind

Written By Bill B, Tampa Bay, FL on Tuesday, February 11, 2014

Crutchfield Customer Review (What's this?)

I didn't want to connect my new system with "cheap" cables that so many people state is all you need. I got peace of mind with this cable without spending "crazy" money for it. I connected my entire system using entry level Audioquest cables and connectors and it sounds fantastic!!!

Pros: Great price

Cons: None

AudioQuest SUB-A

Written By Greg, Fairfax Co, VA on Saturday, February 01, 2014

Crutchfield Customer Review (What's this?)

Can't beat it for the price. To me, it's all most users will need. Also has grounding wires if needed.

Pros: Very flexible cable, won't kink up, and works great. Good sound.

Cons: None that I know of.

AudioQuest sub A

Written By Mark C, Twinsburg, Oh on Wednesday, January 01, 2014

Crutchfield Customer Review (What's this?)

This product was recommended by your staff and fixed my problem as soon as I connected it. The hum is gone. Thank you and your staff.

Pros: Works!!!!!

Cons: None

audioquest sub A

Written By ogl, Terre Haute, In on Monday, December 30, 2013

Crutchfield Customer Review (What's this?)

excellent cable with Marantz MCR610 and Andrew jones subwoofer

Pros: excellent sound when matched with a good subwoofer

Cons: none

AudioQuest SUB-A

Written By BetoV, Ontario, CA on Friday, December 27, 2013

Crutchfield Customer Review (What's this?)

Great quality cable. Excellent, very satisfied,

Pros: great value.

Cons: None

Great cable

Written By Pam, El Cerrito,Ca on Friday, December 27, 2013

Crutchfield Customer Review (What's this?)

I really like this cable and appreciated the ground wires on each end. I was picking up some "hum" and grounding both ends to sub and receiver did the job. Great recommendation

Pros: Great cable

Cons: None

Awesome product

Written By Donna S, Manchester, MI on Friday, December 27, 2013

Crutchfield Customer Review (What's this?)

Does the job, great price and service. Thanks again, Crutchfield.

Pros: price, sounds great

Cons: watch directions of cables-a bit tricky

AudoQuest SUB-A

Written By Perfect length, Birmingham, AL on Thursday, October 24, 2013

Crutchfield Customer Review (What's this?)

Good cable with ground, perfect length

Cons: NONE

Audioquest cable

Written By Dan R, Cincinnati, OH on Sunday, June 30, 2013

Crutchfield Customer Review (What's this?)

Works just fine; the assistance provided by your representatives is top-notch; they are all very patient and tolerant of my electronic ignorance!

Sounds Great

Written By K Miller, Atlanta, GA on Wednesday, June 12, 2013

Crutchfield Customer Review (What's this?)

For the money it sounds great. Have heard some that sound better but many times the cost and not quite worth the cost to me.

AudioQuest Sub-A

Written By Dave, N. Brookfield, MA on Sunday, April 14, 2013

Crutchfield Customer Review (What's this?)

This single cable was all I needed to connect a Polk subwoofer to my Yamaha R-S700. I don't think a more expensive cable is needed for a small home system.

Pros: good quality and price

Cons: none

Audio Quest SUB-A cables

Written By Bill, Zanesville, Oh on Thursday, November 22, 2012

Crutchfield Customer Review (What's this?)

I am not a Techie. I only know what I like. (lots of base). With hearing that favors the higher registers, I usually have the Base turnred higher than most people enjoy. Even so, these cables are able to carry smoothe, clear, undistorted base at volumes even I find too much.

Pros: Excellent value.

Cons: None

subwoofer cable

Written By butch r, Minersville, Pa. on Sunday, October 07, 2012

Crutchfield Customer Review (What's this?)

Excellent, very satisfied, was recommended by a Crutchfield adviser . Great Quality cable.

Cons: None

Audio quest sub a

Written By Js, Ny, ny on Thursday, September 27, 2012

Crutchfield Customer Review (What's this?)

Works perfectly. Powers paradigm monitor sub 12. Shakes my bones.

Works fine for me

Written By bobafet512, IL on Wednesday, September 19, 2012

Crutchfield Customer Review (What's this?)

So far so good. Works well with my Sony receiver to my Polk Sub. though I did not need to use the ground connections... yet.

Pros: Seems solidly built, ground connections a plus

Cons: None so far

Great cable, Easy to install....

Written By Brad C., Yukon, Ok. on Sunday, August 19, 2012

Crutchfield Customer Review (What's this?)

This cable works well but what makes it good is the ground wires at each of the ends to help get rid of ground loop hum that is caused by the cable TV cable input to the TV. Also watch the arrows for proper direction of flow...

Pros: Good product, works well for it's design. Very good having the ground wires...

Cons: NONE

A Great Sub Cable!

Written By Dave S, Greensboro, NC on Saturday, May 12, 2012

Crutchfield Customer Review (What's this?)

For the money, this cable worked great for my application. Nice quality.

Pros: Would use this product in any future applications.

Cons: None.

3 meter Subwoofer cable

Written By Chuck, Ga. on Friday, June 17, 2011

Crutchfield Customer Review (What's this?)

I have mixed feelings about this product. It appears to be of very high quality, and features an external ground wire if you suffer with a 60Hz hum. I also have an inexpensive cable that seems to perform as well as this one. Any chain is only as strong as it's weakest link, so I'm using this connector. You will also need a Y connector on the sub end to make use of your powered subs' built in crossover adjustments. If the need arises for another, I'd likely go with one that features a built in Y for connector for use at the sub. It appears to be a good product, but for the cost it could be better.

AudioQuest SUB-A

Written By CervantesP, Quincy, FL on Monday, March 07, 2011

Crutchfield Customer Review (What's this?)

Very Good accurate bass response. Made my sub come to life!

Good Value for Money

Written By John S, Westchester County, NY on Monday, November 22, 2010

Crutchfield Customer Review (What's this?)

I am not sure why one would buy one of the subwoofer cables that costs many times
more. This low priced cable performs just fine and I would buy it again.

More show than go

Written By Darrell, Shelbyville, Kentucky on Monday, September 08, 2008

Crutchfield Customer Review (What's this?)

The cable does a nice job of of transmitting the sound but I am not so sure that it is that much better than far less priced cables. I am sure there is a difference when put on instruments but the human ear is not that discrimininating. I am a HAM radio buff and I own some very expensive equiptment for trouble shooting problems. I tried some of the cables that I purchased and found that there was a slight difference, particularly in the ability to carry low frequency sound bursts. The difference was still quite small between a $90.00 cable and a $20.00 cable. I doubt anyone could tell the difference between them. The real difference is in looks. Few people want a $2000.00 system and dull, small diameter connection cables. I know better but I like for every thing to look like it matches the equiptment. I just think every thing looks better when it matches.

Hands-on research

What's in the box?

  • 2-Meter mono RCA subwoofer cable (with an 8" ground wire on each end)

Product Research


Overview: The Audioquest CinemaQuest Sub-A cable is a high-quality subwoofer interconnect that uses solid conductors that virtually eliminate distortion. The cable has a chassis ground wire on each end to prevent hum.

Construction: The Sub-A uses identical solid Long-Grain Copper conductors for both the positive and negative to minimize distortion. The simpler grain structure and fewer impurities within Long-Grain Copper provide significantly clearer sound than normal OFHC (Oxygen-free High-Conductivity Copper). Gold-plated, high-conductivity plugs are attached with specially formulated AQ Solder.

Chassis Ground Wires: On each end of the Sub-A cable are 8" ground wires, terminated with a spade connector. If a hum problem exists when your receiver/processor and subwoofer are connected to each other, you can attach the wires to the metal chassis of the subwoofer amp and to the chassis of the sending component.

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.