Hi
The Etesian is a passive preamp. This means that your can use it for CD, Tuner, Tape-deck, dvd and other equipment that gives out a full signal.
For use with a TT, you need, as Klaus said, a phono-amp/RIAA as the signal of the TT is to low for the Etesian. But this is more or less common to day, as a lot of pre-amps do not have a build-in RIAA (The Tempest DO have a RIAA, but cost a bit more than the Etesian)
It does not have an out for a head-phone, so here you can either take it from you CD or in case of the TT you need an extra headphone-amp. One cheap amp which can do both TT and Headphone is the Bellari which cost around 200$, keeping the total budget within 1700$.
The Khartago do not have any problem with a 4 ohm load.
I hope the above will help you
Brgds.
Brian