seriously, daily normal listening at moderate volume situation, the preout voltage will be lower than what u think, unless u listen to test tones/sine waves which i think the preout voltage will be constant and high..

as for the number of RCA preouts, the more the better as tuning will be much flexible..try get 3 preouts, sufficient for most users..come to think of it, 3 preouts are not enough for me currently, need 4 preouts to really tune my front 3 ways + sub to gain highest satisfaction for myself ..currently, the 1st preout connect to tweets, 2nd preout connect to midbass + midrange, 3rd preout connect to sub..the weak/limited point of tuning my system falls under my 2nd preout..

either directly change HU or retain back ur HU and add on processor such as Alpine PXA-H700, PXA-H800, Audison Bit.1, JBL MS-8..those processors can meet your tuning demands

hi victor, may you list out class AB monoblock amps for SQ purpose? want to know more on their existence and see how poisonous are them..hehe

do u use other DSP to couple up with that lovely classic?

erm..then means u only play 2 way passive front stage + sub, without any digital processing such as TA, EQ and etc rite? or u have ur own ext. eq/proc/e. x-over for tuning purpose?

lolz.. anyway, i dun get wat u meant on the rm100..any story behind that?

diff performance..but mine was using ipod touch with 9887, could hear a little noise background..maybe the DAC of the ipod not good enough..