GECKO® REVELATION SLA 818WA adalah modul subwoofer line-array jarak jauh C.R.I.S.T.A.L.® Audiophile 18″ aktif. Satu daripada seri sistem line-array REVELATION SLA yang luar biasa dan juga merupakan sistem line-array tingkat audiophile pertama di dunia.

Kombinasi  jarak jauh dan C.R.I.S.T.A.L.® WaveGuide 360° menbolehkan distribusi frekuensi rendah yang seimbang yang sangat luas dan volume yang sama di seluruh tempat konser.

Sistem line-array jarak jauh GECKO® REVELATION SLA812RA/SLA 818WA C.R.I.S.T.A.L.® Audiophile aktif mudah disetup dengan konsep plug-play. Reproduksi suaranya yang tinggi membuatnya ideal untuk semua genre musik – dari klasik, jazz, pop, elektronik dan juga rock.


The GECKO® REVELATION SLA 818WA is an active 18″ C.R.I.S.T.A.L.® Audiophile long-throw line array subwoofer module. It belongs to the extraordinary REVELATION SLA series line array system, which is the first audiophile-grade line array system in the world. It incorporates GECKO®’s revolutionary 3-tier C.R.I.S.T.A.L.® Audiophile Class-H amplification technology which operates optimally on single-phase 13A universal power supply!

Its long-throw and C.R.I.S.T.A.L.® WaveGuide 360° field coverage translates to balanced low frequency distribution gently to a very wide audience sweet spot, creating an equal-volume experience throughout the concert venue, without having ear-splitting damage to front row audience.

The GECKO® REVELATION SLA SLA 812RA/SLA 818WA active C.R.I.S.T.A.L.® Audiophile long-throw line array system is easy to set up and run, thanks to its plug-and-use concept. Its high-fidelity sound reproduction making it ideal for all genres of music — from classical, jazz, pop, electronic to rock.

The GECKO® REVELATION SLA 812RA/SLA 818WA active C.R.I.S.T.A.L.® Audiophile long-throw line array system is the perfect complement to all large houses-of-worship and reputable concert venues.

Product Description


Speaker: 18” Waterproof Cloth/Aluminium C.R.I.S.T.A.L.® Woofer with Diecast Aluminium Frame

Max SPL: 140dB/m

Max RMS: 1200W

Impedance: 8Ω

Sensitivity: 120dB/W/m

Frequency Response: 30Hz ~ 155Hz (C.R.I.S.T.A.L.® Audiophile Linear Response)

Nominal Coverage: C.R.I.S.T.A.L.® WaveGuide 360° Coverage

Amplifier Rated Output: 8Ω: 900W, 3-Tier C.R.I.S.T.A.L.® Audiophile Class-H

Amplifier Protections: Mid-Point DC Drift, Short Circuit (ISC), Open Circuit, Thermal (UQC), Overload, Clip Limiter (ACLC), Soft Start (SSC), Subsonic (DHPF), Ultrasonic and RF

Systems: GECKO® Active-X™, Phase Reverse Circuit, Ultra Quiet Cooling Design

AC Power: 110/220V ~ 50/60Hz Selectable Voltages

Physical Properties

Enclosure: 20mm Baltic Birch Plywood

Finish: Wear-Resistant Textured Black Paint

Hardware: Multi-Point Mounting/Rigging Frames

Grille: Powder Coated Perforated Steel, Foam-Backed (Black)

Audio Connectors: Balanced XLR Male Out (1), Balanced XLR Female In (1)

Power Connectors: PowerCON AC In (1), PowerCON AC Out (1)

Net Weight: 84kg

Dimension: (H) 610mm x (W) 910mm x (D) 780mm