Re: [PEDA] OT: Unbalanced line into Balanced Input
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] From: Matt Daggett <[EMAIL PROTECTED]> Reply-To: Protel EDA Forum <[EMAIL PROTECTED]> To: Protel EDA Forum <[EMAIL PROTECTED]> Subject: Re: [PEDA] OT: Unbalanced line into Balanced Input Date: Tue, 27 May 2003 16:40:02 -0400 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 _ The new MSN 8: advanced junk mail protection and 2 months FREE* http://join.msn.com/?page=features/junkmail * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 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] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Re: [PEDA] OT: Unbalanced line into Balanced Input
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] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
