I know that the "What type of stethoscope?" thread gets around quite a bit, but I was looking for information specifically on the Doctors Research Group Pure Tone stethoscopes. Has anyone had any experiences with these, especially the Cardiology and Ti-Lite Cardiology models. All of the nurses I work with say to buy a Littmann, and I probably will buy a Littmann Master Cardiology but also liked what I've seen of the DRG stethoscopes. I especially like that the acoustics are by Bose and that they have both a diaphragm and bell head, which the Master Cardiology doesn't. My school sent a letter saying to buy a stethoscope with both a bell and diaphragm, but I also see they sell a lot of Littmann Master Cardiology's in the bookstore. Of course they also said to wait until orientation to buy equipment. Any thoughts on the DRG's?