I still have a pair of Black Mambas in my system after 2.5 years and that really is a record for me

Bear in mind too that I have had some really esoteric speaker cables over the years including some top end Audio Note at frightening price levels, yet even with those I had reservations about the sound I was getting, whereas with the Mambas there are none - they do their job perfectly.

Even after 2.5 years I can't find anything about them to criticise sound quality wise, although the banana plugs don't have anywhere near enough grip for my liking and changing them without ruining the cable means I will put up with them a while longer before I get the soldering out.

Initially I did have problems with the spade/banana attachment threads loosening up over time, that was until I applied a drop of Loctite to stop that.