Hi again András!

Well, the easiest way to be sure is to buy everything you need, except with only one LFO and no amplifier. Then plug everything in and work out whether it's loud enough. If not, get the amp, otherwise treat yourself to that second LFO.

All I know from personal experience is that I can use the A-183-3 to (amongst other things) bring my Edirol R-09 sound recorder up to the kind of level the A-110 oscillators achieve, so I suspect you'll need an A-183-3 too, but I don't know for sure.

Hope that helps,
Zoë.