You don't need to go straight coaxial (anymore) to achieve low capacitance which granted, is important.
What's also now equally important to achieve is low (no) time smear, and low (no) noise and hum pick up -- both a real problem with long single ended ICs.
Your best bet in my opinion is a "shotgun' design -- two equal signal conductors surrounded by a "floating" shield (floating means connected to ground only at one end -- usually the arrowhead end) These are modeled on the original Bruce Brisson Monster Cable design. They are now made by AQ, Straightwire, MIT, Monster, and many others. Cardas makes their ICs with two concentric shields each connected to ground at opposite ends (so no arrows necessary.)
One thing most people don't know, so I'll mention it (as I do every chance I get ;~)) When using shotgun type single ended ICs between preamp and amp, DO NOT point the arrow toward the amp. Point ALL arrows on ALL ICs to the preamp (which BTW should be your only grounded component.)
The arrows are NOT ABOUT SIGNAL FLOW (maybe with the exception of some speaker cables.) They are simply pointed to the end of the cable where the shield is connected to ground. Thus you can see that if all arrows are pointed toward the preamp, then the preamp becomes the center of a "star grounding system" which results in the lowest noise.
Some quite reputable manufacturers make cables with other grounding configurations, and in their case, you should probably follow the "signal flow" rule. They include Purist, Magnan, and a couple others, Nordost I think. And of course, a lot of ordinary single conductor coax cable have "me too" arrows now. Avoid all of those!
As for price, you should be able to get a great sounding (I kept min for 12 years) 8 meter (24 ft) pair of Straightwire Maestros for about $500-$600.
What's also now equally important to achieve is low (no) time smear, and low (no) noise and hum pick up -- both a real problem with long single ended ICs.
Your best bet in my opinion is a "shotgun' design -- two equal signal conductors surrounded by a "floating" shield (floating means connected to ground only at one end -- usually the arrowhead end) These are modeled on the original Bruce Brisson Monster Cable design. They are now made by AQ, Straightwire, MIT, Monster, and many others. Cardas makes their ICs with two concentric shields each connected to ground at opposite ends (so no arrows necessary.)
One thing most people don't know, so I'll mention it (as I do every chance I get ;~)) When using shotgun type single ended ICs between preamp and amp, DO NOT point the arrow toward the amp. Point ALL arrows on ALL ICs to the preamp (which BTW should be your only grounded component.)
The arrows are NOT ABOUT SIGNAL FLOW (maybe with the exception of some speaker cables.) They are simply pointed to the end of the cable where the shield is connected to ground. Thus you can see that if all arrows are pointed toward the preamp, then the preamp becomes the center of a "star grounding system" which results in the lowest noise.
Some quite reputable manufacturers make cables with other grounding configurations, and in their case, you should probably follow the "signal flow" rule. They include Purist, Magnan, and a couple others, Nordost I think. And of course, a lot of ordinary single conductor coax cable have "me too" arrows now. Avoid all of those!
As for price, you should be able to get a great sounding (I kept min for 12 years) 8 meter (24 ft) pair of Straightwire Maestros for about $500-$600.