Frequency range
frequency_range_hz
Max Long Term Spl Db
max_long_term_spl_db
Power Handling Long Term
power_handling_long_term_w
Power Handling Program
power_handling_program_w
Nominal impedance
nominal_impedance_ohm
4x 18-inch LF drivers (4-inch / 100 mm VC), dual isobaric push-pull configuration
Multi-ply cross-grain laminated birch
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.