Hi
The YAS 275 and YAS 475 reviews on this page might help you
http://www.shwoodwind.co.uk/Reviews/Saxes/Alto/Alto_sax_reviews.htm
The YAS 275 and YAS 475 reviews on this page might help you
http://www.shwoodwind.co.uk/Reviews/Saxes/Alto/Alto_sax_reviews.htm