How do you integrate your sub(s)?

[audiophile911]

I just bought a D120 with the optional pre-out board and KEF LS-50's.  I'm trying this setup a KEF R400b sub.  I read here that others have set the active speaker crossover on the Devialet to around 80Hz 4th order and ran the sub full range and used the subs crossover?

However, in the configurator for the D120, the speaker crossover adjustments are greyed out?  I checked on the configurator for the D200 and they are no longer greyed out.  Does this mean that the D120 does not have an active crossover or do I just not get the use of it because I bought the entry level model??  I can't find anything it the literature which says it's only an option from the D200 and up??

I think they might be greyed out because you have SAM selected in the Configurator?

OK I will need to check this. If I can't use the xovers, what's the best way to integrated my sub?