The preamp output voltage is adequate (preout voltage is not extremely important). The output impedance is rather high....but probably won't cause too many problems unless you are using it with a component that has a lower-than-typical input impedance. IIRC you generally want the input impedance to output impedance ratio to be higher than 10:1, which is why low-impedance outputs are a good thing. This will almost never be an issue. Such as the Eclipse decks with 55-ohm preamp outputs.