The standard is 2V -- but that doesn't precisely answer yr question.
Underwood HiFi should know, however. Ask not only the voltage, but also,
the output IMPEDANCE: reference (usually measured @ 1kHz) & max;
also calculate the wattage.
You need energy from the cdp to drive the IC and the amp directly. I.e. yr cdp should have a good output stage. Otherwise, the result will be "thin", i.e. lacking in energy as you go fm midbass down.
Underwood HiFi should know, however. Ask not only the voltage, but also,
the output IMPEDANCE: reference (usually measured @ 1kHz) & max;
also calculate the wattage.
You need energy from the cdp to drive the IC and the amp directly. I.e. yr cdp should have a good output stage. Otherwise, the result will be "thin", i.e. lacking in energy as you go fm midbass down.