Re: ADI-2/4 Prototyp
I'm using an external stereo DI/mic preamp where the maximum output level is 21dBu, plugged into the 2/4 analogue inputs/ADC with balanced XLR cables. It seems the 2/4 reference level of 24dBu or 19dBu suit it well. I'd like to match it exactly to 21dBu if possible, but am finding the L/R Trim Gain settings a little confusing. Should I:
A) Set it to 19dBu and both the Trim Gains to +2.0dB to achieve 21dBu
B) Set it to 24dBu and both the Trim Gains to +3.0dB to achieve 21dBu
Thanks in advance!
BTW, I am using a pair of the Shure A15AS attenuators between the outputs of the 2/4 and the inputs of my active ATCs, the Shures set to -25dB, and I can report it works very well. On the 2/4 main volume, I can have raw mixes set to -12dBfs, dynamic masters around -15, louder masters around -18, and slammed modern masters around -21 to achieve my reference level in the room (around 77dB SPL), with the ATC's sensitivity set to 2V. That also leaves me another 12dB for very quiet sources.
I am stunned by this thing, gonna plug the turntable in soon!