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Re: Microphone Follow-up

Author: Mark Horne
Date: 2007-03-15 07:40

I think I can provide some clarification. Virtually all professional microphones use the 3-pin XLR connectors and cables, no matter what type of mic it is. The two most commonly used types of mics are condenser, which require a small amount of electrical current to operate; and dynamic, which operate with no additional power. Some condenser mics use an internal battery to supply the current, however, most require "phantom" power - this is supplied by the (pre-)amplifier, and it is sent along the same XLR cable that connects the mic. Some older or lower-end PA amps may not supply phantom power at all - which is where the external phantom power supplies come in.

If I were performing in various venues using the house sound system, I would seriously consider using a rugged dynamic mic and avoiding phantom power issues altogether. A Sure SM57 is world-standard workhorse mic used in hundreds of applications (including the presidential podium), and can be had anywhere for $99. They are virtually indestructable and have a very natural sound that is complementary to most live sound reinforcement systems. This mic is instrument friendly and any self-respecting sounc tech would be very familiar with its output levels and response characteristics. Most importantly, this mic would never make you sound "bad" unless the system was bad.

Having said that, there are condenser mics that would probably sound better with the right set up. They generally have a more extended frequency response and can add a nice "airy" quality to the sound. But they could also be too bright in some situations, and depending on its pickup pattern and how close you play to the mic, there could be some uneveness of sound quality and tone. You may also encounter increased problems with feedback.

You also mentioned a Pig-nose as a possible alternative as a stage amp. I would only use an electric guitar amp as a last resort - they are not designed to work with mics. An excellent alternative might be one of the many acoustic guitar amps available today - they are compact and self-contained, and most have a dedicated mic input with plenty of equalization and effect options. They reproduce full-range sound, and prices have become very reasonable in recent years.

Good luck, Mark

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