I have something of an odd question. I need to find an adaptor to connect my ER2 earphone dual-mono male to a single bnc output on a TDT HB7 headphone buffer. Does anyone have a good source for hard to find audio connectors?
Alternatively, can someone recommend a low frequency sound source that can couple with an ER-10B? Our usual equipment is used for testing mice, and we need something that will not have a lot of harmonic distortion below 4 kHz.