Yes, I am aware of that. The suggestion of connecting the Rel to the pre comes from Bel Canto. If you prefer to connect your Rel to the amp I suggest you go with Bel canto ;500 series, either mono or stereo. On Monday I'll investigate further with Soundings Hifi in Denver. They have a lot of experience connecting Rel subs to JRDG class D amps, which are of the balanced output variety like the Bel Canto 300 and 1000 series.
GUido
GUido