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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: You will be effectively dropping the input impedance of your preamp... posted by SF tech on July 4, 2007 at 17:22:02:
I use a conrad-johnson Premier Three preamp.
The Premier Three has unbalanced RCA inputs only. All unconnected inputs are connected only to the input switch, that is, are floating. The grounds of all inputs are connected to the common/chassis ground.
As long as I'm careful not to inadvertently connect one of the "hot" leads to ground I think my scheme should work!
My plan is to create a cable with a normal RCA plug at one end and an XLR balanced connector at the other end.
The RCA plug would be wired normally. The ground wire at the XLR end would be connected to pin 1 (ground), and the "hot" wire would go to pin 2 of the XLR. (Confusing, I know, but pin 2 of the Marantz is actually the inverted output!)
I would leave pin 3 (non-inverted) floating.
Since the balanced output voltage of the Marantz is exactly twice the unbalanced output voltage, My theory is that by connecting the two outputs to separate preamp inputs that I could invert polarity by simply switching between the two inputs!
Ken
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Follow Ups
- RE: You will be effectively dropping the input impedance of your preamp... - FidPup 07:42:02 07/05/07 (3)
- Sounds like it would work fine... - SF tech 11:25:54 07/05/07 (2)
- RE: Sounds like it would work fine... - Awe-d-o-file 12:17:36 07/05/07 (1)
- RE: Sounds like it would work fine... - FidPup 14:10:26 07/05/07 (0)
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