I had Monster Z2 Biwire before this that cost the same as what I'm selling these for and if you had listen to both cables you would hear the incredible difference that Wireworld has. Clarity, sharp bass, realistic instruments etc, everything better. I've been trying different interconnects over the past few months and decided on Wireworld. I've even spoken to David Salz, the President and Founder of Wireworld (and Straightwire)and we had an extensive conversation about cables. Mr Salz encourages customers to send feedback either by E mail or telephone and he will speak to anyone who wishes to talk to him. Great company and a great cable.