
Originally Posted by
Marc Wielage
There's no difference in terms of sound quality per se. The Lectro plug-ons (HM's) are limited to 100mw, as opposed to 50/100/250mw on the SMQV's. One potential issue is that the plug-ons use their own body as the transmitting antenna, so there's no attached antenna per se. Like all antennas, they're position-sensitive, but if they're plugged into the back of a boom pole, at least they're up in the air and away from a body, which is a good thing.
The other issue with the HM plug-ons is that they can't go into "sleep" mode, which you can do with the regular SM's or SMQV's. I think they're good for specialized purposes -- handheld microphones for documentaries, or plugged into the back of a boompole -- but the conventional wireless xmitters are more versatile. Both are usable.