Questions & Answers

Thank you for you reply

+1 vote
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asked Nov 19, 2015 in AudioBox USB by peterscott3 (510 points)
edited Nov 19, 2015 by peterscott3
It states in the AudioBox iTwo manual that by switching off either of the lights with the guitars symbols above them turns that channel into a line input or one able to accept a line signal.

I may have this wrong but this is the way I read it. As you most probably know I'm quite new to this just wanted to use my standard guitar amp to record through USB.

The cable you recommended is it a mono or stereo 3.5mm jack from headphone socket to the line mono input Jack on AudioBox iTwo

as it appears that a stereo one would not work.

I.ve just remembered that I have a effects loop on my guitar amplifier which is just 1/4" mono jack I seem to remember reading somewhere that I could you this with a normal guitar lead straight into the AudioBox iTwo after switching it to accept a line input as mentioned above.

Thank you

1 Answer

+1 vote
answered Nov 19, 2015 by matthewgorman (51,480 points)
selected Nov 19, 2015 by matthewgorman
 
Best answer
Input one is line or xlr. Input 2 is instrument or xlr, based on the button selection you mentioned.

 

Where you will get tripped up is in how pro audio works. A stereo signal is two mono signals, panned hard rt and lft. In home audio, stereo is one trs cable. I am not sure in your examples which part of the cable coming from the amp is carrying what.

 

For cables, and involving a mostly mono source like a guitar, there are 2 ways to connect. You can come out of the amp stereo via the 3.5mm, and then sum l+r to mono via the patching I referenced. Method 2 is to not sum, and just take one side of the l+r and trat it as mono. No real danger for a guitar, since both sides of the l+r have the same information. For a true stereo instrument like a keyboard, the l+r sides may be different based on the sound.
asked Nov 19, 2015 in AudioBox USB by peterscott3 (510 points) Many Thanks for your time
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