From a measurement standpoint resistors should beat transformers, but an awful lot of people claim they like the sound of the transformers better. My opinion is either one can sound very, very good if properly implemented and this is one of those issues where it comes down to personal preferences.
I tried a Placette in a system before I was biamping and it sucked the life out of it. I talked them into building me one that had an input impedance of 100K instead the stock 9K and it sounded wonderful. I compared it to some Slagle transformer units and to tell the truth couldn't say say which I really preferred, leaning a bit to the transformers but they were both very good. Now that I biamp I don't use a preamp as I control the volume via digital processing in Pure Vinyl software.
I know, not much help but at this point I think you need to try both and see which you prefer.
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I tried a Placette in a system before I was biamping and it sucked the life out of it. I talked them into building me one that had an input impedance of 100K instead the stock 9K and it sounded wonderful. I compared it to some Slagle transformer units and to tell the truth couldn't say say which I really preferred, leaning a bit to the transformers but they were both very good. Now that I biamp I don't use a preamp as I control the volume via digital processing in Pure Vinyl software.
I know, not much help but at this point I think you need to try both and see which you prefer.
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