Re: [Harp-L] Modified Audix Fireball mic

[Bob Cohen <bcohen@xxxxxxxxxxxxxxx>]

On Jul 2, 2006, at 1:51 PM, Mike and Beverly Rogers wrote:

> Hi.  I have one, that I bought when they first came out, last  
> year.  It's low impedance.  I use a line transformer, when I want  
> to go through my amp. radio Shack has them cheap.  I wrote to Audix  
> this morning, about having mine modified.  The bass response isn't  
> quite up to par, the way it is.  I use min to play through the P.A.  
> and found that I get good vocal response, so I sing and play  
> through it.  I don't think it equals my G.B., through the amp, but  
> is great for my chromatic and for that acoustic sound.  Hope this  
> helps.

Bullfrog.  Thanks for the response.  I did a bit more research and  
learned what you've just shared with me regarding impedance and the  
need for a line transformer,

"There are three general classifications for microphone impedance.  
Different manufacturers use slightly different guidelines but the  
classifications are roughly:

   1. Low Impedance (less than 600Ω)
   2. Medium Impedance (600Ω - 10,000Ω)
   3. High Impedance (greater than 10,000Ω)"

(Source: http://www.mediacollege.com/audio/microphones/impedance.html)


At 150 ohms, the Fireball qualifies as low impedance.

The Shure A95U seems to fit the bill.  It's got an XLR to female 1/4  
inch adapter all for around $30, not bad.

So the only outstanding issue is whether the one I'm getting will  
need the mod that's been discussed. The guy claims the fireball is  
new, in the box and never been played and that it was recently  
acquired.  We'll see.  In any event, I'll need to pick up the line  
transformer to see how it works with my set up.

Enjoy this fine summer day!

Bob