More input on PSR-740 and R.S. mic.headset..

Into the R.S. 33-3012 amp/battery/switch module, I plugged a Labtec C-316 headset ($20 at computer stores) that I had already, and I feel that the sound is a little better than with the original R.S. pickup.

The Labtec has a built in ear-speaker so one can do sound monitoring while recording.

Since the ear part and the mic part are separate plugs, one has the choice of muting the PSR or not. This reduces the feedback from speakers on recording. One can independently raise the volume to the earphone output, while the line-out recording output is constant.

So it boils that the little R.S. micro-amplifier is the good factor for improved mic signal, so important in recording.

I do not have now the 'PRO' low-impedance mike, but I feel that if I would plug it into the micro-amp with an adapter, it would probably do even better sound quality (minus the important ergonomics of the headset types).

The above info is my 2-pennies change back to the forum.

mbl.