No transformer needed. The gain settings on page 55 of the manual are
sufficient for the SM 58. Just wire it as an unbalanced output. I
use both the rear or front MIC inputs with no issues and a variety of
different mikes.
73
Bob, K4TAX
On 10/4/2017 12:18 PM, Stewart wrote:
OK here's what worked: I used a pre-amp, that was on hand, that has a
balanced XLR input and a TS jack output. The SM58 does need quite a
bit of gain to work but sounds good using the tx monitor.
My SM58 has a switch so I set up to use VOX and the mic switch acts
kind of like a PTT (only temp).
Amazon lists a Sescom AUD-XLR-RCA that seems to be nothing more than
an audio transformer that converts balanced to unbalanced. Might be
just what is needed for higher output mics, such as some of the Heils.
Thanks for the help and I hope this helps others who want to use the
rear jack on their K3s.
Stew ke4yh
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