Direct-field planning estimate. It ignores reverberation, reflections and room modes, and is not a substitute for measurement.
Grid lines are 1 m apart. Room size is limited to 60 m.
Speaker library Brand QSC JBL Yamaha RCF Electro-Voice Mackie NEXO d&b L-Acoustics Generic
Model K8.2 K10.2 K12.2 KS112 KS118 KS212C
Type Top (full range)
Maximum level 128 dB peak at 1 m
Coverage 105° wide × 105° high
Frequency range 55 Hz to 20000 Hz
Drivers 1 x 8 in LF + 1 x 1.4 in HF
Weight 12.2 kg
Size (W × H × D) 280 × 449 × 269 mm
Amplifier Built in (active) Source: Manufacturer page , read 2026-10-10
Notes about these numbers Level: Calculated for 1 m from sensitivity and amplifier peak power (full-space for full-range); not a measurement. Page also prints a continuous figure of 122 dB at 1 m.Coverage: Printed as nominal coverage angle, axisymmetric (so H = V). The K.2 series spec table labels it -6 dB; the per-model page does not repeat the definition.Power: amplifier module (features list); spec table gives peak 1800 W LF + 225 W HFFrequency: -10 dB pointOther: No sensitivity printed. Pole cup mounts (standard and 7.5 degree down-tilt) listed; pole socket diameter not printed on this page. Dimensions labelled H x W x D on page. Add to plan
Add your own speaker Real models list their source and are marked Unverified until each number has been checked against the datasheet.
On the plan S1 Generic 12 in top (example) Top × S2 Generic 12 in top (example) Top × S3 Generic 18 in sub, cardioid (example) Sub × Select a speaker here or on the plan to edit it. Drag the dot on its aim line to turn it.
Reset the example room
70 80 90 100 110 120 130
Sound level in dB SPL. Red = 130 dB. Loudest in this room: 118 dB.
Quietest 84.7 dB
Average 106.0 dB
Loudest 117.6 dB
Below 82 dB 0%
Within band 2%
Above 88 dB 98% Calculated 20184 points in 1.6 ms.
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How to use the planner Set the room size. The top of the plan is the front of the room. Pick a speaker in the library, or add your own numbers, then press “Add to plan”. Drag the speaker to place it and turn its aim handle. Set height and tilt in the speaker panel. Read the map: red is loud. Switch to coverage zones to see where the room is below, inside or above your target level. Copy the link to share the plan, or download it as a picture or PDF. The planner estimates direct sound only, from datasheet figures. Read how it calculates , the guides , or browse the speaker data and sources .
Speaker coverage plan
12.0 m wide by 8.0 m long, ceiling 3.5 m. The front of the room is at the top.
Tops: sound level at seated ears (1.2 m).
70 80 90 100 110 120 130
Sound level in dB SPL. Red = 130 dB. Loudest in this room: 118 dB.
Quietest 84.7 dB
Average 106.0 dB
Loudest 117.6 dB
Below 82 dB 0%
Within band 2%
Above 88 dB 98% ID Speaker Type From left From front Height Aim Tilt Level S1 Generic 12 in top (example) Top 2.4 m 0.6 m 1.8 m 168° 6° -6 dB S2 Generic 12 in top (example) Top 9.6 m 0.6 m 1.8 m -168° 6° -6 dB S3 Generic 18 in sub, cardioid (example) Sub 6.0 m 0.4 m 0.3 m 180° 0° -6 dB
Direct-field planning estimate. It ignores reverberation, reflections and room modes, and is not a substitute for measurement. Generic example speakers are invented values, not real products.