I am original owner of these Audioquest Columbia 2M XLR cables. These were purchased new and includes the original box. I moved some gear around in my house and am no longer in need of these. These are a great sounding pair of cables and include the 72V DBS pack to keep the cables performing at their best
State-of-the-Art Build-Quality Nets Sonic Results
AudioQuest Columbia is built around AudioQuest's wonderful PSC+ copper conductors, an ultra-pure copper that has delivers unmatched even-balanced frequency response with speed, detail, and dynamics. Polyethylene tube insulation on all three of the conductors (positive, negative and ground) minimize the interaction between the the conductor and the insulation for greater air and transparency. AudioQuest's proprietary Dialectic-Bias-System keeps noise at bay and dramatically lowers the noise floor of the cable.
The AudioQuest 72V DBS system smooths frequency response and the Cold-Weld connectors eliminate harshness. The three-layer Noise-Dissipation System protects the entire cable from the deleterious effects of airborne noise. Standing on its own, Columbia is a wonderful-sounding cable capable of bringing out the best in any system, but perhaps the most astonishing thing about Columbia is how close it sounds to its big brothers at a fraction of their prices. Maybe it's not so surprising after all. Columbia uses the same conductors as Colorado, the same Noise-Dissipating shielding as Niagara and the same connectors as Sky, and costs a fraction of their prices.
AudioQuest cables are legendary in audiophile circles for their neutrality and resolution. For 28 years, AudioQuest has worked tirelessly to achieve sonic neutrality in all their cables, regardless of price. Ensuring that music flows unchanged and uncolored requires removing the myriad distortions that occur when a signal flows through a cable. To accomplish this, AudioQuest bypassed conventional cable design and focused their efforts on both the physical properties and sonic characteristics of the conductors and connectors, as well as every other material used in the creation of their cables. This unorthodox approach has led to a number of innovations, the most celebrated of which is the Dielectric Bias System (DBS), a revolutionary and patented system of simultaneously protecting the conductors from outside interference and reducing distortion within the cable.
Patented Noise-Dissipation System Leads to Incredible Value