Impedance loader, perhaps I meant a microphone loader. . . It's a resitor that changes the impedence of your input. The one I have is built into a XLR plug. The idea is that when the SM58 was designed back in the day, a typical input impedance was about 500 Ohm, but nowdays 2000 ohm is more typical....

Hiya,

How about trying an impedence loader which will probably cost about 10 quid? I put one of these on a 58 (a mic I have kept away from in the past) and was pleasantly surprised by the result. Definitely a more polished sound. Definitely still not an expensive condemsor sound.

Al