I am now using a cullen modified ps audio gcph for the last 2 years
thius feeds into a balanced switch align with the balanced variable output of the cdp - this is then connected to the active crossovers so that no preamp is required
rothwell attenuators only stayed a few months as they degrade the sound too much
currently considering other phono alternatives - would love to try the balance clearaudio reference as this also has built in volume control