Hi John;

From what I know, the SM6 will work well on the 746 PRO.

It's a bear bones mic with no amplification.

On the other hand, the SM8 has amplification even if you turn down the pot underneath the mic.

The Heil mic have a lot of trouble driving the 746 PRO.

And, unfortunately the SM6 is no longer being manufactured.

The only option open to you is the SM20.

The mic runs close to $200 however, I've heard people using them and they sound great.

I would not by one used because, unless you know the person really well, you have no idea if the person is a smoker or not or, whether or not the mic has been modified.

If I were in your position, I would go with the sm20.

Hope this helps.

73 De Anthony W2AJV
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  ----- Original Message ----- 
  From: John Vernaleken 
  To: [log in to unmask] 
  Sent: Saturday, February 03, 2007 9:38 PM
  Subject: [BLIND-HAMS] Desk Microphone for IC-746PRO


  Looking for reccomendations for Desk Microphone for IC-746PRO.I am trying
   
  to keep cost reasonable, possible a discontinued model like SM-6.
  John  KC2QJB