Electro-Voice EKX-18SP
A powered subwoofer, 1 x 18 in LF (EVS-18C). The figures below have not yet been checked against the datasheet.
Unverified data. Entered from the manufacturer’s page. Check the datasheet before relying on it.
Place it in the plannerSpecifications used
| Maximum level | 134 dB peak at 1 m |
|---|---|
| Power | 1300 W (amplifier rating (Class D); type not further specified) |
| Pattern | omni (assumed: the source does not say) |
| Frequency range | 35 Hz to ? Hz (low-pass end 180 Hz (-10 dB range; -3 dB response also printed); upper limit omitted from freqHigh because the validator requires >=1000 Hz) |
| Weight | 32.8 kg |
| Size (w × h × d) | 606 × 520 × 612 mm |
| Pole socket | Yes |
| Source | Manufacturer page (2026-10-10) |
How the level was stated. Printed as 134/133 dB peak; footnote: measured at 1 m using broadband pink noise at maximum output.
Notes. -3 dB response 40-150 Hz, half-space. Page and datasheet mention Cardioid Control Technology (up to 35 dB reduction on stage when multiple subs are deployed) but that is a multi-sub array/DSP feature, not a stated single-unit pattern, so pattern left omni/not stated; owner to decide. M20 pole mount plate. No sensitivity printed. Adjustable low-pass 80/100/120/150 Hz.
What the figures mean at distance
Taking 134 dB at 1 m on axis and the free-field rule of 6 dB lost per doubling of distance, this is the most the speaker can reach at each distance. A real room adds reflections, and a speaker is not normally run at its maximum.
| Distance | Level on axis |
|---|---|
| 2 m | 128.0 dB |
| 5 m | 120.0 dB |
| 10 m | 114.0 dB |
| 15 m | 110.5 dB |
| 20 m | 108.0 dB |
See level and distance and coverage angles for how these are worked out.
Planning estimate only. The calculation ignores reverberation, reflections and room modes. See terms and disclaimer.