The A4000 may turn out to be problematic for you also in the long run. It's famous for having its capacitors fail (audio section and A3640 board) so be prepared for that costly scenario (trip to France or New Zealand if you aren't electronically inclined).
The A1200 audi caps are a must do job as well nowadays:(..do a quick search here and you'll see it's a very common problem though I must agree it's an easier job to repalce them on a 1200 then on a 4000
