Question for those who understand all of those dB conversions. (Scarlett 2i2 related)

Artie

Artie

Peaveyologist
In reference to device output, we generally refer to "pro" level and "consumer" level. +4dBu and -10dBV respectively. Here's a chart to show the relationship:

Output level chart.jpg

The Focusrite Scarlett 2i2 lists its output as being 10dBu. Thats hot. Real hot. 2.5 volts RMS, and almost 8-volts p-p. I wonder if this is a misprint? Did they mean -10dBV? Unfortunatly, there's no Focusrite forum. Does anyone know what the real spec is? The reason I'm asking is, I'm trying to build an interface from the balanced 2i2 output into my unbalanced consumer level Proton preamp. So that output level spec becomes critical.

Scarlett-output-specs.jpg

Artie

P.S. I understand decibel conversions. I'm questioning that output level. ;)
 
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Re: Question for those who understand all of those dB conversions. (Scarlett 2i2 rela

That does sound incorrect, but I cannot find anything that clarifies it. The issue with running the 2i2 into a preamp is that is already is a preamp, so you can easily overdrive the input to the Proton.

Why not just connect the 2i2 to your power amp and call it a day?
 
Re: Question for those who understand all of those dB conversions. (Scarlett 2i2 rela

TwilightOdyssey said:
Why not just connect the 2i2 to your power amp and call it a day?
Click to expand...

Because then I can't just select between "guitar playing" and "listening to music" at the flip of a switch. (Input control, to be exact.) ;)
 
Re: Question for those who understand all of those dB conversions. (Scarlett 2i2 rela

I hear ya, and figured as much. :)

The problem is that I don't think it can be quantified like a hifi preamp becuase it depends on the output from your DAW and a host of other factors. The more I think about it ... with your DAWs master out at 0dBFS and the monitor output cranked ... +10 dBu may not be too far off the mark. The 2i2 has a LOT of output.
 
Re: Question for those who understand all of those dB conversions. (Scarlett 2i2 rela

Maybe memory fails but, I think in Studio applications, analog mixing desks handle around +12dBU.
So, probably a device to feed an analog mixing desk.
For most audio interfaces (even working at pro levels of +4dBU), it could saturate their input so much.
 
Re: Question for those who understand all of those dB conversions. (Scarlett 2i2 rela

I think what I'll do is take this thing into work with me and look at the actual output on a good scope. That will answer this once and for all.
Thanks all for your help.
 
Re: Question for those who understand all of those dB conversions. (Scarlett 2i2 rela

Pls make sure to report back!
 
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