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In Reply to: Re: Actually posted by Charles Hansen on April 13, 2006 at 12:06:03:
I'm unclear as to what active preamp you are using, and also what sonic differences you found between the active and the passive.I still use an Audio Research SP-9 MKIII for use with my vinyl source where the gain is required. I found the attenuators offered more resolution and stage width.
I use 10k attenuators with the GamuT CD-1 having a 75 ohm output impedance. I downloaded the spreadsheet they provide to indicate HF roll off at the various attenuation levels. With my system, it is non-existent at any gain setting.
...and is achieved at a volume level that is 6 dB below maximum. (This is typically in the range often used for listening.)
Except for some very low gain sources like Telarc recordings, I usually run the attenuators around -12 to -14 db down.
rw
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Follow Ups
- Details - E-Stat 04/13/0612:44:36 04/13/06 (2)
- OK, this makes sense - Charles Hansen 15:21:15 04/13/06 (1)
- I still believe the future is simpler - E-Stat 15:32:01 04/13/06 (0)
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