Electrostatic speaker cables...


I just read SoundLabs white paper on electrostatic speaker cables. It recommends low inductance AND low capacitance for a speaker cable, along with a medium impedence.

I own a pair of Martin Logan Aerius i, and am looking for upgrade suggestions: I'm powering them with a VTL IT 85, and right now, am using MIT Terminator4 cables. I would like to find a cable that fits the above suggestions that is also biwired.

Any recommendations? Obviously, SoundLab's own cables would be one idea, but I wouldn't be able to audition them. I'm planning on loaning a bunch of cables from fatwyre.com...

Thanks..
dennis_the_menace

Showing 4 responses by sean

Hmmm..... They recommend a speaker cable that doesn't exist. Finding a cable with all three of those characteristics at the same time might be a good trick. Nordost's are "reasonable" in terms of inductance and capacitance but have a higher nominal impedance. Kimber's have low inductance, a "medium" nominal impedance but are a little higher in capacitance.

Try checking out the Dunlavy's. I have NO personal experience with them nor am i familiar with all of their specs, but John Dunlavy has stated that they are the "most technically correct" cables on the market and offer a nominal 8 ohm impedance. Given that John is a true engineer in every sense of the word, they may at least be worth looking into. Sean
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Bear, i kinda figured that they were relatively high capacitance based on the physical description and geometry that AudioEngr previously provided, but i was not sure.

As to posting a plug for your own cables, i don't see a problem with that. That is, so long as you make it clear that you are associated with the product and / or have some type of financial interest in that product line. You did that, so i don't see why anyone would get upset about it. It would be different if you went the "sockpuppet" route and raved about your product and then responded as Bear to further plug your product line. Sean
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Bear: Velocity of propagation of cables IS quite pertinent in RF applications if you want to do things "right". Using cables cut to random lengths without factoring in the velocity factor can introduce errant vswr readings and alter the load impedance that the transmitter sees. This can be used to ones' advantage though if you are trying to use the cable as an impedance transformer.

Audioengr: The specs for your cables ( Empirical Audio ) are very similar to those of Kimber 8TC. The specs i've seen on these show .03 mH / 100 pF per foot. Their nominal impedance is 17 ohms. Electrically speaking, your cables and the Kimber 8TC's should load up relatively identically ( for all practical purposes ). Sean
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Jneutron: What do you do about skin effect, conductor shape, EM field ( and therefore the impedance ) consistencies at various power levels, etc ??? I'd like to see what your "simple math" approach to cable design comes up with when all of the factors are taken into consideration. It is good to see that you recognize power transfer characteristics as being "important" though : ) Sean
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