My point was, he doesn't need the linestage. The R150B is a $10k streamer/DAC/preamp, replete with analogue-in.
Why would the OP buy that? If he wanted an analogue preamp, he could have bought a cheap Bluesound or MusicCast, DAC and pre.
But when you spend $10k on what is for all analyses a brilliant digital and analogue preamp - why would you want to go and add a second gain stage for sh1ts and giggles?
ARC LS28 (just to use a basic analogue preamp as an example) is similar price here in Australia. Why would anyone go out and buy an LS28 - then say "I've got $3k to add a second preamp after the LS28". It defies logic.