Spectral DMC10-12 phono stage gain

Hi all,
I've read on the specifications of Spectral DMC10 and DMC12 that their phono section has maximum gain 40dB (MC); but I've also read that these preamps themselves have high gain, 30 or 36dB if I don't go wrong in reading the specs.
The question is: would they match my Lyra Delos cartridge, which is 0.6mV output and generally needs at least 50dB gain or more ?
Up to date I've used it with 55db gain of a Klyne 6LE/P into an ARC LS7 (13 db gain): does it mean I have overall 55+13 = 68 dB gain or... not ?
I mean: should I simply sum up the phono gain with the line stage gain or are they separate and independent values, not to be mixed up ?

thanks, ciao
daniele