top of page


The GECKO® REVELATION SLA 812RA is an active 2 x 12" C.R.I.S.T.A.L.® Audiophile long-throw line array loudspeaker 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!

Additional features include the GECKO® C.R.I.S.T.A.L.® Acoustic Adaptation Processor (GCAAP)™, a highly-efficient automatic ambiance adaptation technology. This user-friendly GCAAP™ comes with four selectable switching functions: CLUB Mode, STAGE Mode, HALL Mode, PIAZZA Mode, simplifying the very comprehensive and complex acoustics adaptation process to its performance environment.

Its long-throw and C.R.I.S.T.A.L.® WaveGuide 120° (H) x 15° (V) field coverage translates to balanced sound distribution 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.



  • Speakers: 2 x 12” Waterproof Cloth/Aluminium C.R.I.S.T.A.L.® Woofer with Diecast Aluminium Frame

  • Tweeter: 75mmø C.R.I.S.T.A.L.® Titanium Driver

  • Max SPL: 138dB/m

  • Max RMS: 1000W

  • Impedance: 8Ω

  • Sensitivity: 110dB/W/m

  • Frequency Response: 50Hz ~ 20kHz (C.R.I.S.T.A.L.® Audiophile Linear Response)

  • Nominal Coverage: C.R.I.S.T.A.L.® WaveGuide 120° (H) x 15° (V) Coverage

  • Amplifier Rated Output: 8Ω: 775W per Channel, 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® C.R.I.S.T.A.L.® Acoustic Adaptation Processor (GCAAP)™, Low Cut Circuit, Ultra Quiet Cooling Design

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

Physical Properties

  • Enclosure: 18mm Baltic Birch Plywood

  • Finish: Wear-Resistant Textured Black Paint

  • Hardware: Multi-Angle 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: 58kg

  • Dimension: (H) 365mm x (W) 910mm x (D) 530mm

Included Accessories

  • GECKO® Line Array Flight Case (2 Modules/Case)

  • Rigging Accessories (1 Lot)

bottom of page