Re: Recording with Tech 21 Trademark 10
It's all about distance and how much input PAD available the IRIG has.
DI from the Tech21 into the IRIG XLR input is the best choice -but you must PAG or Gain down the +4dBU signal in order to not blow up the input -as that input doubles as a Mic input so it has a wide range of acceptable levels but dialing in the right level is critical . The Tech21 DI XLR out to IRIG XLR input will have a much better Signal to Noise ratio and for recording that's everything -unless the 1/4" actually circuit sounds better in an A/B comparison -which in some cases in the past has been true -There are many Japanese products that had -10dBV RCA and 1/4" circuit that was preferred for the characteristics it imparted to the sound -but these are the exception.
However 1/4" to 1/4" is totally fine for short distances (<6-10 ft) as the common mode circuit and level advantages of the XLR input don't really show themselves as much in short distances. If the Tech21 only has a 1/4" headphone out -it then has an extra transistor circuit which is creating more noise in signal to the IRIG -so avoid headphone out it IMO. If your TECH21 has a dedicated 1/4" out AND a headphone out -use the dedicated 1/4" out.
I used to record Tech21 Samsamp Bass DI all the time using the XLR out. It works fantastic. -although I would use a pro level preamp -but I expect in this day and age -you will see great results.
