High Z And Low Z Mics

On Friday, February 6, 2015 at 6:28:57 PM UTC-8, jurb...@gmail.com wrote:

"> Besides that, OP needlessly and incorrectly modified the amp. "

Didn't that blown up picture depict an ATTENUATOR ? That's the last thing we needed.

That red button is a locking mechanism, not a potentiometer.

If you want to pay $20 more, use it plugged into the XLR Line IN, and your balanced microphone cable into it.

But, you still don't have a Volume control.

You could Manually PWM the mic's On/Off switch Really Fast to get a Volume control in there.

Peace

Out

 

[Gareth Magennis]

"Phil Allison" wrote in message
news:d00c612f-ec02-4d6c-91c1-bff3fed78610@googlegroups.com...


Gareth Magennis wrote:

http://www.markertek.com/product/lmx/pro-co-sound-lmx-inline-barrel-xlr-mic-to-1-4in-line-level-adapter

** That gadget ( likely a transformer ) is meant to take a line level input
( keyboard etc) and convert it to suit an XLR mic input.

IOW it's DI box.


.... Phil




Pro Co Sound LMX InLine Barrel XLR Mic to 1/4In Line Level Adapter

Thing is, I can't quite make out whether the XLR is male or female, so at
this point the Jury is out.


Gareth.

 

[Gareth Magennis]

FFS.

Buy a 15 dollar box and fix yours and the customers problem.


Sorted.







wrote in message
news:7984d8f8-418b-4aaa-9c45-99c3a24fccc5@googlegroups.com...

Well I told them they could probably use a high impedance mic on it
successfully. I alkso told them tha tI MIGHT be able to make it work with a
low impedace mic but it would have to be adapted to ź". I did not modify the
XLR input. It is separate and goes to the other side of the dual OP AMP. The
outputs are mixed after that. Maybe they did that to make it work better if
you want to use both inputs simultaneaously. Why else ? Alot of things I se
just use a couple of resistors, and that also gives them balance ź"
capability. But not this one. No ring at all, just shield and tip.

I think the guy is just going to use a high ipedance mic on it and be done
with it. I stuck one rsistor in it, I paralleled a 33K with a 10K. That
should quadruple the voltage gain right ?

I didn't want to go higher gain because then it would be way too touchy on a
line input like a mixer. I would do it, but if so I would mark it, that it
is no longer a line level input.

It probably owuld have been better to modify the XLR input gain. It is more
logical but it takes more reverse engineering. tyhat means time and money
and htis place doens't want ot make too much. Their rates are very low,
which is something we will have to discuss one of these days. Seems like
more stuff is coming in though. The one main place in town charges over
double what they charge. Get a foothold aand then I will tell them what they
should be charging. By then I will know what I am talking about because I
will research it.

But really, the same bullshit exists as in the TV business. People put 25
amp fuses in, stick paper or something under whatever to make it work. Let
their idiot borther in law work on it.

Got an amp I almost rejected but the boss said it belongs to our pizza guy.
Someone puit a wrong screw in the front panel ant it busted the cleat OUT OF
ALUMINUM ! And I have never had to drill out more screws in my life.
Soldered it up a binch of times and now the thing won't come out of protect.
Shitcan it, I already got too much time in it to even lose reasonable money
at what they charge.

And that one with the class D Icepower module ? I put a note on it, forget
it and stick it out there and then find out LATER that they just sold the
thing !

Same shit, different day and less money.

Whatever. Go ahead and rant, I do.