Here is a full quality audio solution, under many circumstances, these out perform any 
active circuit because of the floating
isolation from primary - secondary.

http://www.lundahl.se/lineinp.html

http://www.lundahl.se/lineout.html


____________
Brian Guralnick
[EMAIL PROTECTED]
------------------------------------
Protel freebees:> http://pages.infinit.net/helloftp/protel.htm


----- Original Message ----- 
From: "Matt Daggett" <[EMAIL PROTECTED]>
To: "Protel EDA Forum" <[EMAIL PROTECTED]>
Sent: Tuesday, May 27, 2003 4:40 PM
Subject: Re: [PEDA] OT: Unbalanced line into Balanced Input


> Yea...the preamp has less than 100 ohms on its output.  Hopefully it will be
> fine...
>
> -----Original Message-----
> From: Bagotronix Tech Support [mailto:[EMAIL PROTECTED]
> Sent: Tuesday, May 27, 2003 3:44 PM
> To: Protel EDA Forum
> Subject: Re: [PEDA] OT: Unbalanced line into Balanced Input
>
>
> > - Running the unbalanced line directly into the balanced input and taking
> the
> > 6db Gain hit... but what about the impedance mismatch?
>
> As long as your pre-amp has low impedance (600 ohm or so) outputs and your
> A/D has higher impedance inputs (10K or so), you will be OK.  With these
> types of signals, you don't need to match impedances.  Matching impedances
> is only necessary to maximize power transfer (speaker LC crossovers), or
> minimize signal reflections (RF frequencies or long digital signal runs).
> In the case of audio line level signals, you don't care about maximizing
> power transfer, and the low frequencies and short distances involved don't
> require you to minimize signal reflections.  So try it and see (er, I mean,
> hear) what happens!
>
> Best regards,
> Ivan Baggett
> Bagotronix Inc.
> website:  www.bagotronix.com
>
>
> ----- Original Message -----
> From: "Matt Daggett" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Tuesday, May 27, 2003 11:54 AM
> Subject: [PEDA] OT: Unbalanced line into Balanced Input
>
>
>
>
>
>



* * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* To post a message: mailto:[EMAIL PROTECTED]
*
* To leave this list visit:
* http://www.techservinc.com/protelusers/leave.html
*
* Contact the list manager:
* mailto:[EMAIL PROTECTED]
*
* Forum Guidelines Rules:
* http://www.techservinc.com/protelusers/forumrules.html
*
* Browse or Search previous postings:
* http://www.mail-archive.com/[EMAIL PROTECTED]
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

Reply via email to