[Harp-L] Mic Impedance Transformer

Joel, the Fireball uses what is basically a vocal mic element. An impedance matching transformer will make the mic louder and a little fatter - but it is simply not the same kind of mic as a JT30 or vintage Shure Bullet (controlled magnetic or controlled reluctance). Those mics distort when you drive them hard - the Fireball doesn't. If you like a clean sound or want to use guitar pedals to manufacture your distortion for you, the Fireball is a great mic. If you want to drive your tube amp to warm fat distortion the old fashioned way, I strongly recommend a traditional bullet or Shure 545.



From: Joel aka Poweharp <powerharp@xxxxxxxxx> Date: November 13, 2008 8:43:04 AM PST To: harp-l@xxxxxxxxxx Subject: [Harp-L] Mic Impedance Transformer

I recently began using a Fireball-V mic. This is a low impedance mic (150
ohms). It has been suggested that I us an impedance transformer which I
understand will boost the signal through the entire range of the mic. I've
played at three jams with the mic and have received comments that the sound was
a tinny. My amp is a 60 watt all tube, Pignose G60VR, upgraded with a Weber
California 4 ohm speaker. With a JT-30 or even a Shaker Dynamic mic the sound range is much more full.

Before I purchase a transformer, can anyone enlighten me on exactly what I
can expect it to do in terms of what changes I will hear in the sound/tone? I
hope that I will hear a noticeable increase in the lower frequencies that are
part of the full resonance of any harp in any key. That's based on my limited
knowledge of the physics of sound.
Joel aka Powerharp

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