Now I've hooked it up with crocodile wires to my big old stereo system. The stereo sound quality is very good, from low bass to high treble. Just like playing a vinyl record, but without the scratch noises. I was a little concerned after watching a number of Youtube clips, but they connect to toy speakers and record in a mobile phone, hence the horrible sound quality on those clips.
I don't see the absense of a jack such a big problem. It's just a couple of minutes of work away. 