If your equipment (and it's very good equipment) is working OK, and the sound is identical on both channels, and there are no other sonic issues (like noise, hum, RF interference), and not internal settings on the CDP or amp, then I would check for an impedance mismatch between the CDP and the Antique.
Try another source like an FM tuner or another CDP. Also, try another set of ICs (probably not the problem but don't just assume because of their great reputation, that the Siltechs are correct for this application.
Usually in these cases, it's the CDP output characteristics that are causing the problem, especially if it's equal on both channels. You might want to shoot an email to Cary.
Try another source like an FM tuner or another CDP. Also, try another set of ICs (probably not the problem but don't just assume because of their great reputation, that the Siltechs are correct for this application.
Usually in these cases, it's the CDP output characteristics that are causing the problem, especially if it's equal on both channels. You might want to shoot an email to Cary.