hi david99, the input impedence my preamp sees is 25k-ohms; while rogue sez the output impedance of the rogue 99 is 100ohms, this is surely not the case. as a test i ran a 2.2k-ohm resistor across the rogue's outputs, & this *noticeably* reduced the volume coming out of the speakers. it would not surprise me if the actual output impedance of the rogue is 2500 ohms, or even higher. i tried this same test w/the cary in the system (~800 ohms rated output impedance), and there was absolutely *no* reduction in volume, when the output was crossed w/the 2.2k-ohm resistor. perhaps, w/the rogue seeing a higher input impedance of, say, 50k-ohms, or 100k-ohms, there would have been no loss of mid-bass in my system. impedance-matching *is* important! regards, doug
Pre-amp with great phonostage (tube)
Need a great Pre (Tube) to record my audiophile LPs to a CD burner. Don't panic. It's just so I can take some of my clasics on the road. I will be using a Planar-25/Grado Reference turntable setup. Because of price I am conserding vintage units but would like all input. PS. Input on Solid State welcome too.
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- 14 posts total
- 14 posts total