Re: digital controlled mic amp
- From: martin griffith <martingriffith@xxxxxxxxxxxxx>
- Date: Mon, 29 Aug 2005 07:50:27 +0200
On Mon, 29 Aug 2005 04:49:13 GMT, in sci.electronics.design "Ban"
<bansuri@xxxxxx> wrote:
>martin griffith wrote:
>> This is a Studer mic amp
>> http://home.datacomm.ch/gronerfamily/DIY/D19_MicAD/D19_MicAD_Op_Serv47.jpg
>>
>> I just dont know if I like it. It looks messy. Or am I missing out on
>> a great innovative design
>>
>>
>> martin
>
>It only looks messy if you do not understand the circuit.
I was trying to work out the disadvantages/advantages of running a mic
transformer into a virtual earth.with the i/p z deterimed by r134 or
R142. That doesnt look like a quiet solution. I havent seen this done
on a mic amp before.
It might mean that you can get away with having a small(cheaper)
transformer.
I'd normally go with Mr Bears sugg. of a pga2500, but that doesnt
quite have the headroom of a 5534
martin
.
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