House de Kris
Loud-n-Deep
Another digital audio interconnect as supplied by AKer DKak. This time the cable under consideration is the JPS Labs Superconductor 2. This is a 0.75m fat-n-rigid cable terminted in gold BNCs. This fatty has a cloth covering and feels very nice in the hand. It has a couple of inches of heat shrink tubing at the terminations with the company and product name printed in gold. When I say rigid, I mean this thing wants to hold its shape no matter what. Really, this thing is rigid is the point I'm trying to make. It is so rigid, I had difficulty connecting it to the TDR since its two jacks are only about 2-3" apart. Printed on the heat shrink tubing were directional arrows, and I respected them for these measurements.
The TDR measures the impedance of this cable as being 49.97ohms. Yes, this is a 50ohm cable. The story continues. Although the gold BNCs look like 75ohm connectors (which I believe they are), the TDR shows an impedance dip at each end of the cable. I think this cable has similar issues to the PS Audio Digital X Stream cable, in that attaching a fat cable to a smallish connector requires stunts that compromise the controlled impedance nature of a transmission line. I believe fat cables like this are better suited to fat connectors, like N-type.
The network analyzer measured the -3dB bandwidth point as being 4.6GHz.
The TDR measures the impedance of this cable as being 49.97ohms. Yes, this is a 50ohm cable. The story continues. Although the gold BNCs look like 75ohm connectors (which I believe they are), the TDR shows an impedance dip at each end of the cable. I think this cable has similar issues to the PS Audio Digital X Stream cable, in that attaching a fat cable to a smallish connector requires stunts that compromise the controlled impedance nature of a transmission line. I believe fat cables like this are better suited to fat connectors, like N-type.
The network analyzer measured the -3dB bandwidth point as being 4.6GHz.