Love Audioquest. Sorry to sound like such a fan boy, but all of their cable products (and I have more than a few) always impress in terms of build quality. Yes they cost a bit more. And they are worth it. This cable which I use for my mid-priced subwoofer resulted in an upgrade in punch, exactly what I was looking for.
I can’t say enough good things about Audioquest’s quality and consistency. I’ve been using their cables for years and they never disappoint. The Black Lab series does just what it promises. I used to have custom cables fabricated because I knew exactly what I wanted for specific applications. The Black Lab series hit my specs almost exactly for low frequency signals so I tried it out and I’m very satisfied with the results.
This is a well made quality cable. Using to connect my subs to my receiver. Had to return the first cable as after about two weeks of working flawlessly, it just stopped working. Nothing changed once connected so not sure what happened. Best Buy exchanged the cables no questions asked. The second cable has worked very well. I like the idea of the directional arrows but not sure if it makes much of a difference in sound quality.
A:AnswerSome older subwoofers require the use of two RCAs otherwise the sub can create hum. If this is the case, the grounding wire should be attached to a screw on the mounting plate on the rear of the sub, and the other end attached to a grounding point on the rear of the amp or receiver. If there is no hum, there's no need to use the ground wire.
A:AnswerIt's my understanding that in-wall cables are designed to 1) meet building code requirements and 2) to have a "slippery" jacket covering to allow installers to more easily pull wire through wall openings.