input impedance

[Glen Zook]

A 500 ohm microphone is normally considered "medium
impedance".  The SB-401 is MUCH happier with a crystal
or ceramic microphone that has its impedance in the
tens of thousands of ohms.

You can use a "medium" impedance microphone if you use
a preamplifier (like the one in some of the D-104
microphone stands).

I have my D-104 set up so that I can go either
directly from the high impedance cartridge or through
the preamplifier.  My Heath SB-101, SB-110A, and
SB-401 "prefer" the amplifier.  My Heath Apache and
Heath DX-100 can use the microphone either way and
sound pretty much the same.  My Hammarlund HX-50A
sounds pretty much the same either way.  However, both
of my Collins S-Lines definitely do NOT like the
preamplifier!

But, I also have a high impedance ceramic microphone
that works fine with all of my transmitters when used
directly into the unit.

Glen, K9STH


--- sb200 <sb200 at OPTONLINE.NET> wrote:

I'm wondering the best input impedance for my
Sb-401would be?  I'm using a 500 ohm mic and I sound
thin. I'm not sure whats the best all the manual says
is high.    Also has anyone tried w2ihy EQ on there 401.

=====
Glen, K9STH

Web sites

http://home.comcast.net/~k9sth
http://home.comcast.net/~zcomco



__________________________________
Do you Yahoo!?
Read only the mail you want - Yahoo! Mail SpamGuard.
http://promotions.yahoo.com/new_mail

-----------------------------------------------------------
Products bought, sold or traded here is the responsibility of the
parties involved.  This list and the City of Tempe are not responsible
for losses or misrepresentations of any kind.  Buyer beware!

-----------------------------------------------------------
This list is a public service of the City of Tempe, Arizona
-----------------------------------------------------------

Subscription control - http://www.tempe.gov/lists/control.asp?list=HEATH
To post - HEATH at LISTSERV.TEMPE.GOV
Archives - http://interactive.tempe.gov/archives/HEATH.html