Hi.
First let me say that I don't believe that cables make a difference in a system. Generally I use whatever I have accumulated over the years, nothing fancy.
I have a double pair of KLH Nines and just bought an Audire Forte to drive them. The preamp is a Krell KRC-3. I've read a few postings here and elsewhere about the need for the cable connected to an Audire Forte to be less than 3 ft long (something about picking up RF and frying itself). My preamp and amp are very close, probably about 1.5 ft will do. So I thought I'd build one. I was thinking about just using a good quality Belden 89259 with decent connectors but saw a few videos/articles about building using cables with 2 shielded conductors and having the shielding connected to the ground cable one the amp size. Question: does it make any difference? Specially in a very short cable?
Thanks
Elias
First let me say that I don't believe that cables make a difference in a system. Generally I use whatever I have accumulated over the years, nothing fancy.
I have a double pair of KLH Nines and just bought an Audire Forte to drive them. The preamp is a Krell KRC-3. I've read a few postings here and elsewhere about the need for the cable connected to an Audire Forte to be less than 3 ft long (something about picking up RF and frying itself). My preamp and amp are very close, probably about 1.5 ft will do. So I thought I'd build one. I was thinking about just using a good quality Belden 89259 with decent connectors but saw a few videos/articles about building using cables with 2 shielded conductors and having the shielding connected to the ground cable one the amp size. Question: does it make any difference? Specially in a very short cable?
Thanks
Elias
A well-shielded, low-capacitance coax is about the ideal unbalanced cable, and Belden 89259 seems to qualify as such. Shielded 2-conductor cable is primarily aimed at balanced microphones and such; it can be used unbalanced but capacitance would be expected to be higher.
The only parameter I'm not sure of is triboelectric properties of the FEP jacket, a material that is used in triboelectric nanogenerators - then again, so is PVC, as vinylphiles can probably attest (and records aren't usually black for no reason - carbon is conductive). I don't think it would be a huge problem, as the cable wouldn't be subjected to an awful lot of vibration anyway (I don't think we regularly have to run out audio cables next to a running combustion engine or somesuch). The effect of being hit by sound waves might still be measurable, but that's about it.
The only parameter I'm not sure of is triboelectric properties of the FEP jacket, a material that is used in triboelectric nanogenerators - then again, so is PVC, as vinylphiles can probably attest (and records aren't usually black for no reason - carbon is conductive). I don't think it would be a huge problem, as the cable wouldn't be subjected to an awful lot of vibration anyway (I don't think we regularly have to run out audio cables next to a running combustion engine or somesuch). The effect of being hit by sound waves might still be measurable, but that's about it.
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