Let's be fair on the output impedances. Here's a quote from Stereophiles measurements (available online) of the Cary SLP-05:
"The SLP 05's output impedance is specified as a usefully low 400 ohms. However, I got significantly higher values for the unbalanced output of 15001600 ohms in the midrange and treble, rising to 3400 ohms at 20Hz, with similar if slightly lower figures for the balanced output. The Cary preamp needs to be used with power amplifiers having input impedances of 10k ohms or greater if the bass is not to sound a little lean."
Mesael: "With no chance for home audition", I don't think you could go wrong with either. Don't let "inverts phase" affect it, it's really a non-issue. The word is about half of the recordings are reversed anyway. FWIW, I chose CJ preamps for my system.
"The SLP 05's output impedance is specified as a usefully low 400 ohms. However, I got significantly higher values for the unbalanced output of 15001600 ohms in the midrange and treble, rising to 3400 ohms at 20Hz, with similar if slightly lower figures for the balanced output. The Cary preamp needs to be used with power amplifiers having input impedances of 10k ohms or greater if the bass is not to sound a little lean."
Mesael: "With no chance for home audition", I don't think you could go wrong with either. Don't let "inverts phase" affect it, it's really a non-issue. The word is about half of the recordings are reversed anyway. FWIW, I chose CJ preamps for my system.