I don't have experience with that model, but the name implies that it is a phono amplifier, which is to boost the level of a turntable specifically. Phono amplifiers do not work correctly, if at all, with CD/DVD/DAT/cassette players. I believe turntables do not ouput the same type of line level as CD/DVD etc.
Similarly, if you have a phono input on your current integrated amp, you shouldn't (can't ?) use that input for CD/DVD etc.