This Yamaha YAS-23 Alto sax was just through our shop.  Our techs gave it a COA and also replaced 11 pads.  Now the sax seals properly and plays great throughout its range.  
 
Feel free to ask questions.
Local Phoenix, Arizona buyers get one year of free adjustments.
 
Out-of-state buyers can expect great service and a very well-packed instrument. Agave Music has served the Phoenix market for over 15 years. We regularly ship horns all over and our reputation is our livelihood.