Some of you may have read my earlier review postings on various stethoscopes from Kila Labs and GRX Medical (the CD27 is just amazing). I've been using Kila's single-head stethoscope (http://www.kila.com/specssingle.html) for a few months now and was impressed by the quality of the bi-lumen tubing, chest-piece, and clear/detailed sound. I've compared it directly with my friend's Master Cardiology many times. In fact, it is such good clone of the Master Cardiology in size, weight, looks, and performance that the only obvious difference is on the diaphragm. Yes, the Littmann has a tunable diaphragm. I happen to be the curious type of guy who likes to play with and test things. My buddy just happens to have a replacement tunable diaphragm/rim set for his Littmann, so I decided to try it on my Kila scope for fun...Lo and behold, it fitted on and functioned perfectly!!! I cannot resist comparing the two scopes again and had a difficult time telling which one is which (luckily my buddy's MC has his name engraved on it).
What I'm trying to tell you is this: You can now put together a Master Cardiology for $40! The replacement rim/diaphragm set is less than $10 and the Kila was about $30 shipped. My Kila single-head now has the full capability of auscultating hi/low frequency sounds from Littmann's tunable diaphragm! If you're already using a Kila single-head, then you know how good of a scope it is. Now you have an option of expanding its powers and upgrade its looks for next to nothing. Have fun guys!
