i own a reloop iq2, and have used some reloop cdj's and a rmx 30 twice. first up reloop iq2 (which i know is not in the pack but might give you an insight on their quality). the sound on this is very good. ive never had it attached to a PA, but have it attached to a technics mini system. i have read very nice reviews on their sound output and filters. the faders are smooth as fark, especially the cross fader which is the best fader i have ever used (this is versus djm600, the behringer which looks like a djm700, stanton SA3, and the rmx30). the rmx30 (which i think is a cut down of the rmx40 sans the effects), is a very solid mixer. unfortunately cant comment on the sound as was only playing thru a guitar amp, but faders again are very smooth. has nice spacing. and knobs are nice. i cant remember if the cdj's were rmp1's or rmp2's; but either way my lack of knowledge with how to use cdj's (i never even figured out how to not use the autocue) i cant really give much critique hope thats some help.