As a newly self proclaimed audiophile I have just made a jump from cheap speaker cables to the Black Mamba cables. First off I have a very limited and cost effective system. My amp is a Pioneer 1020. I'm using a tube preamp buffer out of China called the SD-CD 3by Yaoin with some Russian 1970s 6SN7 tubes in situ. I use a Maverick D1 audio DAC to take 96/24 files from my Dell XPS laptop to the system. For speakers I use the Polk RSi A7 in a Bi Amped config. I couldn't buy everything at once so I've been building slowly and have added an Ultra Power grid along with audiophile Sonar PEX2 platinum power cables and Indeed/ RCA connectors. I've topped the system off with a couple pairs of Sterling's Black Mamba speaker cables with banana connectors at both ends. To be honest I've been adding to my system at a rather quick pace over the past few months so all my equipment has not had proper burn in time. However, I can speak for what I hear now. I was using some cheaper USA made cables I bought off eBay for $50 in a bi amped config. At first I only bought one pair of Black Mambas and put them in the mid to high connection on my Polk speakers. Immediately I heard a more clear and precise sound from my system. It's like sheets were taken off my speakers and I could hear them more clearly. I called my wife who is not an audiophile but does enjoy music....after a few seconds of listening she couldn't believe the improvement of sound. I was so sold that I ordered another pair for the mid bass connectors on the polk speakers. I received them only two days ago and have been using them since. I can only describe the sound as open...uncolored...and clear. The detail is unshaded and open. These Polk speakers with the Black Mamba cables in bi amp config really allow my set up to reach its full stride with ease. My next step is to change out my tubes for some different gold connector tubes with a different plate and getter configurations. I know the bottle neck in my system is the Pioneer 1020k and an Elite system would improve the quality overall. However, I do enjoy the sound at this point and what brought it to this point was the Black Mamba cables. I know all systems are different and we all have tastes that differ. For me I can't praise the Sterling cable company enough for the high quality cables they make and distribute. On a budget and relatively new to this audiophilic world...I would still put my money down on another set of these well made...perfectly balanced speaker cables. Somebody...prove me wrong!