Configuration
configuration
Frequency range
frequency_range_hz
LF: 2x10" + 2x8" neodymium; MF: 1x8" with horn; HF: 2x1.4" exit compression drivers (3" voice coil)
D40, D80, D90 (mobile); 40D (install)
Recommended amplifier
recommended_amplifier
d&b D80 / D40 / D90 / 40D
Every field carries its own trust-tier: core data is confirmed by the manufacturer, peripheral data — by AI (with a source link). Safety-critical parameters (load ratings) are never published below vendor-claimed — a liability requirement.