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-   -   Db25 Inputs / Line (https://duc.avid.com/showthread.php?t=420692)

CHRIS AIKEN 06-24-2022 09:50 AM

Db25 Inputs / Line
 
I was wondering if the db25 inputs (switching to “line”, no external preamps) is the same quality as using the xlr inputs and having it set to “mic”.

It’s more convenient for me cable wise but I want to make sure there’s no difference in quality.

Thanks!


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dominicperry 06-24-2022 09:55 AM

Re: Db25 Inputs / Line
 
Line the same as Mic. No.
Line in the same as DB25 line in. Yes.
Look in the manual, page 42-43. Specifications cover both DB25 and TRS as the same thing.
Line "True Bypass" (also available on both DB25 and TRS) gives you 1dB better SNR and 1dB better dynamic range. Good luck with hearing that.

Dominic

CHRIS AIKEN 06-24-2022 04:28 PM

Re: Db25 Inputs / Line
 
Quote:

Originally Posted by dominicperry (Post 2640252)
Line the same as Mic. No.
Line in the same as DB25 line in. Yes.
Look in the manual, page 42-43. Specifications cover both DB25 and TRS as the same thing.
Line "True Bypass" (also available on both DB25 and TRS) gives you 1dB better SNR and 1dB better dynamic range. Good luck with hearing that.

Dominic


Interesting, I’m used to no gain boost on line ins. On the db25 connectors they give the same amount of adjustable gain as the “mic” setting. (50db I think).

That’s why I asked, it seems to function the same as using the mic setting.


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musiczebra79 06-27-2022 10:55 AM

Re: Db25 Inputs / Line
 
Did some drum recording the other coming in to the line inputs of the carbon from my console, sounded great

K Roche 06-29-2022 08:43 AM

Re: Db25 Inputs / Line
 
Quote:

Originally Posted by CHRIS AIKEN (Post 2640293)
Interesting, I’m used to no gain boost on line ins. On the db25 connectors they give the same amount of adjustable gain as the “mic” setting. (50db I think).

That’s why I asked, it seems to function the same as using the mic setting.


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Well they both spec 60 db But I am a bit confused are you asking if Line in via the combi connectors is going to be noticeably better than with the DB 25 connections ?... I am thinking the quality would be the more or less same

I use the DB25's for my external HW effects ( a stereo reverb and a 2 channel compressor). BUT I have those DB 25 channels set to +4 and "True Bypass" and set the gain on the HW units themselves

CHRIS AIKEN 06-30-2022 04:27 AM

Re: Db25 Inputs / Line
 
Quote:

Originally Posted by K Roche (Post 2640646)
Well they both spec 60 db But I am a bit confused are you asking if Line in via the combi connectors is going to be noticeably better than with the DB 25 connections ?... I am thinking the quality would be the more or less same

I use the DB25's for my external HW effects ( a stereo reverb and a 2 channel compressor). BUT I have those DB 25 channels set to +4 and "True Bypass" and set the gain on the HW units themselves


Thanks for the reply. I was wondering if using the db25 connectors with a mic plugged in directly (no external preamp) would be the same sound quality as using the combi jacks set to mic.

I tried it finally the other day and it works but isn’t the same quality.


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K Roche 06-30-2022 07:58 AM

Re: Db25 Inputs / Line
 
Quote:

Originally Posted by CHRIS AIKEN (Post 2640705)
Thanks for the reply. I was wondering if using the db25 connectors with a mic plugged in directly (no external preamp) would be the same sound quality as using the combi jacks set to mic.

I tried it finally the other day and it works but isn’t the same quality.


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Interesting never tried anything like that .
Question
#1 How does one plug a mic directly into a DB 25 ?

dominicperry 06-30-2022 08:22 AM

Re: Db25 Inputs / Line
 
Using a dedicated line in for microphone input is not advisable. Setting aside the lack of phantom power, they are designed to take entirely different signal levels and often have rather different impedances. It's no surprise it didn't sound good.

Dominic

CHRIS AIKEN 06-30-2022 05:34 PM

Re: Db25 Inputs / Line
 
Quote:

Originally Posted by K Roche (Post 2640717)
Interesting never tried anything like that .
Question
#1 How does one plug a mic directly into a DB 25 ?


I have a db25 to xlr snake.


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Bookerv12 07-08-2022 08:09 PM

Re: Db25 Inputs / Line
 
Uuuugh?....
Lots of basic signal flow/routing/levels misunderstanding in this thread....


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