The Copper Series CRL Interconnects are serious contender for the best of class of under $1000 per meter.The copper series is the least colored, most truly neutral ( in a musical sense) and linear interconnect from $20-20k I've encountered to date at this price point. This is no small achievement and CRL has done their homework. Even usable as excellent phono cables, I did not find a system ,tube or solid state , where the Copper Series did not excel. Robert H.Levi from positive-feedback online. Please add 3% for paypal use.