Cool, sorry to go off topic but is that an MD case I spot there??
It looks very similar to my RH910 case (with the orange Walkman logo on the side).
yes, its my RH1 case
I have 2 MZ-RH1s as you can see in my signature at the bottom.
here the detailed line in/out jacks on my former H120
here my H140 front view: rockbox recording screen (REP = "Recording Enhancement Pack" of "Mmmm" build with custom sized levelmeters and letters as you can see
) with l+r gain set to +20dB for starting a concert recording and at the bottom you see AGC(safety) which will REDUCE gain when needed by itself and NEVER boosts gain!
"AGC safety: 4.0dB" means i have +4.0 db headroom until i reach the max. gain of +24.0dB which i set as "AGC-max"=>can be found by pressing joy downwards until "AGC-max" appears...where you can set the max. possible gain of ie. +24.0dB(max. analog gain)
if i set l+r gain to +15dB =>AGC-safety(clip) would show 9dB, because I have +9dB headroom until I reach +24.0dB(AGC-max)