Yet Another Budget Integrated Amp Question

I work as a Chef in a secluded resort during the summer and live right on the property in one of the cabins. Because of this I am not able to listen to music at a very high volume.

Last year I had a Peachtree Nova that worked pretty well but I ended up selling it at the end of the season to fund other purchases for my home system.

I had considered getting another Nova but now think I might like to try something else. The room is approx 12x18 with 10 ft ceilings and the entire room is bare wood.

The speakers I am using will be a/d/s/ S700's. They are 4ohm and somewhat famous for their lack of midrange clarity. Probably not the best choice of speakers in the a/d/s/ line but it's all I have at the moment.

I would welcome any suggestions for an amp (perhaps NOT on the warm side)in the range of $6-700 used or new source will be mac mini or laptop with a Halide Design dac.

One caveat I have owned most of the usual suspects from Nad, Marantz, Denon, Cambride Audio so I'm thinking would like to try something else.

Anyone with experience with the new Teac Reference line? I can get a demo AI 501 AD for around $650.

Thanks.