D2xLF-D2X-L2F-D2X-L2H Hazardous Location Speakers

Based on the datasheets provided, here's a concise introduction to these three hazardous location speakers from The Signal Source: D2xL Series Hazardous Location Speakers These are marine-grade aluminum PA speakers designed for Class I/II Division 2 and Zone 2 & 22 hazardous environments, featuring re-entrant flare horns with field-replaceable components and IP66/67 protection. Model Comparison D2xL1F (15W) - Entry-level model Sound Output at 10': ~111 dB(A) max Compact design for basic PA applications D2xL2F (25W) - Mid-range model Sound Output at 10': ~114 dB(A) max Standard flare horn design for general-purpose use D2xL2H (25W)—High-output model Sound Output at 10': ~119 dB(A) max High-output flare horn for maximum sound projection Note: dB levels calculated from 1m specifications using standard 20log₁₀(distance) conversion Common Features Multiple transformer tappings (25V/70V/100V line or low impedance) 316 stainless steel ratchet-adjustable brackets Triple cable entries with duplicated terminals Threaded flameproof joints for easy maintenance Operating range: -55°C to +75°C (hazardous areas) UL/cUL, IECEx, ATEX, and UKCA certified The main differentiator is acoustic output capability, with the D2xL2H providing 5 dB more output than the standard D2xL2F at the same power rating through its optimized horn design.