d&b E8 (10D amp)

A passive full-range top, 1 x 8 in LF + 1 in HF coaxial. 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.

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Specifications used

Maximum level	126 dB peak at 1 m
Power	150 W (RMS; 800 W peak (10 ms))
Coverage	90° horizontal × 50° vertical
Frequency range	62 Hz to 18000 Hz (-5 dB on axis (CUT mode 120 Hz to 18 kHz))
Weight	7.3 kg
Size (w × h × d)	232 × 390 × 223 mm
Pole socket	Yes
Source	Manufacturer page (2026-10-10)

How the level was stated. 1 m, free field, peak SPL, pink noise crest factor 4, one speaker driven; may deviate with several loudspeakers. Figure depends on amplifier.

Coverage definition. Page prints 90 x 50 as H x V nominal, rotatable 90 degrees to 50 x 90; no -dB definition stated.

Notes. Pole mount: cabinet has a socket for stands. The architectural spec text says max SPL "at least 123 dB" (conflicts with the product page 126/129 dB; product page used). D20 and 30D are not listed on the product page, which lists D25/5D/25D/D40/D80/D90/40D. Power 150 W RMS / 800 W peak (10 ms), 12 ohm.

Coverage shape

Horizontal: 90° (seen from above)

Vertical: 50° (seen from the side)

What the figures mean at distance

Taking 126 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 and how wide and high its nominal coverage is at each distance. A real room adds reflections, and a speaker is not normally run at its maximum.

Distance	Level on axis	Coverage width	Coverage height
2 m	120.0 dB	4.0 m	1.9 m
5 m	112.0 dB	10.0 m	4.7 m
10 m	106.0 dB	20.0 m	9.3 m
15 m	102.5 dB	30.0 m	14.0 m
20 m	100.0 dB	40.0 m	18.7 m

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.