I think @David Morison et al have provided all pertinent details needed to help you set up your system.
I would just add that as a regular user of RCF, and as someone with an interest in system alignment in general - you should check out the various frequency response charts for those specific speakers, in order to get the best results.
Unfortunately we all have different ideas of what nebulous terms mean, such as small and medium venue sizes. I'm familiar with the 8003 sub, it's a popular box where I work. Although the 932s are new, I'm sure my experiences with other 9xx RCF boxes indicate they'll be as good as, if not better than, the popular 7xx models.
The recent RCF speakers in the Art, NX and HDM formats are beating the MI competition in Europe and UK, with keen pricing and chunky HF drivers capable of lowering crossover frequencies well into the sub-1000Hz territory. More importantly they sound good, whilst each incremental improvement lets them gracefully get a bit louder, maintaining sound quality before they crap out.
When using that pretty potent combination of 932s over one 8003 for a rock'n'roll band in "smaller" venues, I'd attempt to account for the inherent difference between the electrical crossover frequency between your sub & tops (ie the sub's filter setting) and pay attention to the acoustic crossover frequency which inevitably will vary, depending on the relative volumes between your sub & tops.
In all but the tiniest venues, I'd run the 8003 WFO, dialling back the tops to achieve more manageable levels within fader travel at FOH. This should let you get a satisfactory and coherent crossover integration by underlapping the preset HPF frequency feeding the top boxes.
If you run the sub hotter than the tops, the paper spec electrical crossover frequency (eg 60Hz or 80Hz) might be lower than the actual (acoustic) crossover frequency, where the sub aligns with the tops.
Acoustic crossover alignment will vary depending on the relative differential outputs of each type of speaker. For a rock'n'roll band, I'd stick with a 40Hz high pass filter on the sub. Lowering that to 30Hz only forces it to work harder, inherently reducing overall output capability without providing any tangible benefit.
60Hz or 80Hz electrical filters still allow higher frequencies to pass through (depending on volume) hence if the 932 tops have a natural -3dB rolloff around say 70Hz (please check, just an educated guess) then the 60Hz sub filter choice makes best sense, when run wide open at a higher level than the tops. The sub happily allows plenty of content above 60Hz through, thus we potentially get a better complimentary acoustic crossover frequency coupling between both boxes.
I don't have the specs for either box at hand, so please take my theories with a healthy grain of the proverbial salt. I've worked with the 8003 sub many times. I've always been impressed in small venues, though for my idea of medium sized spaces, I'd want 4 boxes tight-packed and centrally arrayed.
Nevertheless regardless of how good both types of speakers are, I would always approach setting up and tuning similarly spec'd boxes with these acoustical objectives in mind, regardless of manufacturer.
My main point is simply to reinforce why even with complimentary pieces of kit designed by the same people to easily work together, you should be aware of the differences between electrical crossover frequencies (ie those on spec sheets, derived from filter design) and acoustic crossover frequencies, whereby the latter is derived from how the gear is used, as well as any kind of measurement - which could be as simple your own hearing, right through to a full SMAART rig.
I hope this makes sense. I only intended to write a couple of sentences...obviously that didn't happen!
The TL;DR point is simply that relative changes in amplitude affect the actual frequency extremes, produced by different loudspeakers designed to reproduce different pass bands. There should be plenty of learning materials on the web which do a more complete and efficient job of explaining how these factors will affect your system.
Rare
