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In Reply to: Were those DWs directly driven? posted by Lew on January 6, 2014 at 11:13:37:
It is the insulation...at 7KV you only need like 30 mA to put 200 watts on the panel. so even if the cable serial resistance wold be 10 ohms the voltage drop on the cable would be negligible, a bigger problem would be the characteristic impedance of the cable at the higher frequencies. but that is all resolvable and a simple engineering problem. It would drive the cable nuts even more nuts that one could not change speaker cables :), In any case i would make such amps mono blocks with short cables connected to the backplate with a connector that would shut the apm down if the cable is disconnected, and would not allow physical removal till the panel is fully discharged. I know it would need some sort of control in the backplate. all that is solvable and can be made totally safe, the question is how much of an improvement would one get, and how much would it cost to build.
dee
;-D
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Follow Ups
- it is not the wire that needs to be thick :) - Penguin 09:05:53 01/11/14 (3)
- I was thinking of the outer diameter, insulation and all - Lew 11:34:06 01/13/14 (2)
- the Innoxx production amp - Penguin 19:34:39 01/13/14 (1)
- RE: the Innoxx production amp - Lew 09:30:19 01/14/14 (0)
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