As with any variable output CDP, analog or digital, close attention has to be paid with other gear. Both resistive analog attenuators (or pots) and digital volume controls don't sound best till 80%. By adding a preamp in the chain you have normalized the attenuation and matched impedance better.
Others might find that the added complexity of a gain stage (or more) detracts from the sound.
Often, simple solutions are complex to apply and vice versa.
Others might find that the added complexity of a gain stage (or more) detracts from the sound.
Often, simple solutions are complex to apply and vice versa.