GNExL1 PA Loudspeaker 15W The flameproof GNExL1 PA loudspeaker is IECEx and ATEX approved, suitable for Zone 1 & Zone 2 applications. Rated power: 15W, available in 70V/100V line transformer and 8 & 16 Ohm low impedance versions. The GNEx range features enclosures manufactured from GRP (glass reinforced polyester), moulded in natural red, but also available in other colours. The re-entrant flare horn is high impact, fire retardant ABS. All models contain dual cable entries, large termination areas containing in & out terminals and an ingress protection of IP66/67.