[Elecraft] more Bass in K3 with PR-40

Joe Subich, W4TV lists at subich.com
Tue Jun 19 11:54:27 EDT 2012


> I would start at zero across the board, lowering the low end and
> adjusting the mids and highs *slightly* upward until you get a good
> balance of decent lows and good presence on the mid to high end. With
> a little patience and a good ear, you'll get an excellent sounding
> signal out of the K3. Of course, you'll want to use the "TEST"
> feature or a dummy load and listen to yourself with the TX monitor.

Most quality microphones sound best with a roll off at 50 (-16) and
100 (-6 to -9) and a slight peaking at 1600 (+3) and 2400 (+5) bands.
If the microphone has some built-in peaking (e.g. Heil HC4/HC5) there
is no need for the added peaking.

The -200 Hz band can be increased slightly if your voice is "thin"
but that will not be necessary in most cases.  Except for a very few
"super bass" voices there is no energy below about 100 Hz and rolling
off those frequencies significantly reduces background noise/hum in
the audio.

If a PR-40 or other "studio" dynamic microphone sounds "thin" work
closer to the mic to take advantage of the "presence" effect.  Most
studio mics are designed to be worked closely so they pick up only
intended sounds and reject sound from other instruments/vocalists
in the room.

73,

    ... Joe, W4TV



On 6/19/2012 10:45 AM, Scott Manthe wrote:
> I don't know where Bob gets those settings. I've got a Gold LIne and
> those setting will make it sound terrible.
>
> First of all, you probably don't need an external equalizer, because the
> K3 has an 8 band equalizer built in. The standard 2.7 kHz filter can be
> made to sound acceptably good, but you're not going to get ESSB quality,
> because of the bandwidth. You'd need the 6 kHz filter for that. I won't
> get into the "ESSB as good practice debate," other than to say that most
> "ESSB" guys I hear on the air sound ridiculous, and I was a professional
> broadcaster for years.
>
> I would start at zero across the board, lowering the low end and
> adjusting the mids and highs *slightly* upward until you get a good
> balance of decent lows and good presence on the mid to high end. With a
> little patience and a good ear, you'll get an excellent sounding signal
> out of the K3. Of course, you'll want to use the "TEST" feature or a
> dummy load and listen to yourself with the TX monitor.
>
> Good luck getting your audio the way you want it!
>
> 73,
> Scott, N9AA
>
>
>
> On 6/19/12 8:18 AM, ac8jd wrote:
>> I have had this K3 up on the air for a few days now.  I would be curious to
>> know how I can get more "lows" or "bass" out of the TX on SSB with my PR-40.
>> The audio reports I get from other stations are that I have a lot of "highs"
>> and they can't open up their filter to get enough bandwidth on my signal to
>> make it sound "lower".
>>
>> I have the TC equalizer set according to Heil's website for the Pr-40
>> http://www.heilsound.com/amateur/dspsettings/all_elecraft.php
>>
>> I just don't know how to achieve getting and lower levels to come out of the
>> rig.  I see in the manual to use the ESSB you have the 6khz filter.  Would
>> that help my situation?
>>
>> TNX,
>> AC8JD
>>
>>
>
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