K-array Domino KF212: SPL & Coverage Preset

The Domino KF212 is rated at 130 dB maximum SPL at 1 m. Sound pressure falls off with distance under the inverse-square relationship, so at 12 m and full output the level at the listener position works out to approximately 108 dB. Pulling the drive back to 60% brings that same 12 m listener position down to approximately 106 dB, which is the figure this preset locks in as the default.

The cabinet's 90 deg x 60 deg (H x V) nominal dispersion is what sets the roughly 12 m horizontal coverage radius used in this preset. A pattern this wide favours even near-field fill across a floor rather than a narrow throw, which suits a general live-event layout more than a long, narrow hall. Being a passive cabinet, the Domino KF212 also needs matched external amplification sized to the box before any of these SPL figures are achievable in practice.

Inside the planner, drag the listener distance and drive level sliders and watch the SPL figure move in real time against the 130 dB @1 m rating. The box-count estimate shown alongside is a front-coverage guide only — SPL adequacy at the furthest listener position is a separate check the planner runs independently, and both should read favourably before a layout is treated as workable.

The planner does not model room reverberation or RT60, coverage zoning across separate areas of a venue, subwoofer pairing or crossover points, array mechanical rigging and hang geometry, or DSP and delay-line tuning between multiple hangs. Each of those sits with detailed acoustic design once the headline SPL and coverage figures here look sound.