My first instinct is to say sell the Dynaudios and buy a pair of good (sealed cabinet) speakers that are compatible with wall mounting.
I cannot imagine using your Naim Nait 5i and good speakers with a graphic.
(You could use a computer based equalizer if using your DAC and computer as the primary source but it still makes me shudder to think of it.)
With very young children it is going to be some years until you feel safe with spiked stands and expensive speakers within reach. So it may be time to start auditioning suitable alternatives that sound great on shelves or wallmounts.
Naim N-Sats (with your sub) could be an alternative or ATC SCM7 (need to ask Dave from Frank Harvey Hifi or Rick from Musicraft if those particular sealed cabinets are ok against walls.)
The AVI Neutron V users here might be able to advise if they are ok on wallmounts (the AVI website say they are fine on shelves).
I just cannot bring myself to recommend a graphic equalizer. It does not matter how great the Dynaudios are, if it is going to be years until you can hear them at their best again. You may as well bite the bullet now and get equally good speakers that can live on a wall rather than 'butcher' the sound with a graphic.
Rega P2 • Ortofon 2M Blue • Rega Fono Mini • Naim Nait 5i • Naim CD5i • Naim NAT 05 FM tuner • Rega R3 loudspeakers • Naim NAC-A5 speaker cable • Beresford TC7520 • Panasonic DMR-EX78 DVD/HDD • Chord Chrysalis, Crimson & Naim interconnects