Telefunken M60 MASTER-SS Small Diaphragm Master Stereo Set with 2x TK60, TK61 and TK62 CapsulesTelefunken M60 MASTER SS Small Diaphragm Master Stereo Set with 2x TK60, TK61 and TK62 Capsules The M60 FET Master Stereo Set comes with two identical M60 FET amplifiers paired with matched sets of TK60 cardioid, TK61 omnidirectional and TK62 hypercardioid capsules, all which have been measured within a strict 1dB sensitivity tolerance. This is the most thorough package of the M60 FET Series, giving you the tools and options for any small diaphragm