The SM58 is representative of a wide variety of the hand-held
"vocal" mics by many manufacturers. It would not surprise me
if they didn't use a common element - probably manufactured
off shore - which means the read difference would be in mounting
and the wind screen which would effect handling/wind noise and
not particularly impact the response.
> For my SM58 and my K3S I use the following:
>
> 50 Hz -16
> 100 Hz -16
> 200 Hz - 9
> 400 Hz 0
> 800 Hz 0
> 1600 Hz 0
> 2400 Hz +3
> 3200Hz +6
For my voice, I like to set 800 Hz at -10 dB (not much energy
in that band so I reduce the room noise) and then +3/+5/+6 at
1600/2400/3200 (a smooth 3 dB/octave preemphasis). For "DX",
the +3/+5/+6 can be pushed to +5/+9/+10 (5 dB/octave) to
emulate the HC4.
73,
... Joe, W4TV
On 2018-10-10 3:20 PM, Bob McGraw K4TAX wrote:
For my SM58 and my K3S I use the following:
50 Hz -16
100 Hz -16
200 Hz - 9
400 Hz 0
800 Hz 0
1600 Hz 0
2400 Hz +3
3200Hz +6
The Behringer XM8500 dynamic mike gives identical performance and it
costs only $20. Heard one and just had to try it. I can swap between
the SM58 and the XM8500 and folks that I rag chew with on a regular
basis can't tell the difference. Even the machining pattern on the
base is the same on both mikes. And in looking a the elements, they
too appear to be the same.
73
Bob, K4TAX
On 10/10/2018 1:07 PM, Joe Subich, W4TV wrote:
If one has a flat "wide band" mic (electret) the typical TX EQ settings
needed to emulate the Heil HC4 (DX)/HC5 elements, a couple classic
"communications" mics and a typical dynamic "vocal" mic (SM58) are:
-- SHURE --
HC4 HC5 D-104 444 SM58
50 -16 -16 -16 -16 -8
100 -16 -16 -10 -16 -2
200 -16 -3 -4 -7 0
400 -4 -2 -3 -2 -1
800 -0 -2 -1 0 -1
1600 +5 +2 +3 +3 +0
2400 +10 +5 +9 +7 +1
3200 +10 +6 +13 +12 +4
Thanks to: <https://owenduffy.net/audio/legend/index.htm> for the
HC4/HC5/D-104/444 response curves. The SM58 data comes from
Shure's data sheet.
73,
... Joe, W4TV
On 2018-10-10 11:29 AM, Don Wilhelm wrote:
As Bob K4TAX has pointed out and K9YC has long advocated, set the
lower 2 bands of TX EQ to the lowest levels and set the 3rd band down
a bit as well - that will increase your "talk power" while not
wasting power trying to transmit those low frequencies which are not
needed for intelligibility. If you are into ESSB, you may differ,
but ham radio is not HI-FI in my opinion, it is about communications
effectiveness.
The typical
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