Outline GTO-SUB High Power Flyable Subwoofer 2 x 18″

SKU: O1GTO-SUB Categories: , , Tag Brand:

RRP: $18,999.00 ex. GST

Key Features:
  • Ultra-low frequency extension down to 28 Hz for thunderous, musical bass
  • Dual 18″ hybrid band-pass woofers with 9600 W peak power handling
  • Integral GTO rigging system flies up to 16 cabinets with selectable 3° splay
  • Long low-turbulence port ensures clean, high-definition output
  • Identical footprint to all GTO elements for seamless turnkey arrays
  • Parallel NL4 and LKI-8 connectors for flexible signal routing
  • 18 mm Baltic birch cabinet with waterproof coating and steel grille

Outline GTO-SUB High Power Flyable Subwoofer 2 x 18″

Designed for productions that refuse to compromise, the Outline GTO-SUB couples twin 18″ hybrid band-pass woofers with a long, low-turbulence port to unleash authoritative bass down to 28 Hz. Matching the footprint of every GTO element and equipped with a precision rigging system, it integrates effortlessly into large-scale flown or ground-stacked arrays while delivering up to 147 dB SPL of distortion-free low-frequency energy.

Seismic Low-Frequency Performance

Meticulous phase-inversion loading, high-excursion transducers and a carefully tuned reflex alignment give the GTO-SUB an extended passband and exceptional conversion efficiency. Whether reinforcing EDM drops or underpinning orchestral scores, audiences experience accurate, high-definition bass that is both powerful and musical.

Flyable, Modular & Turnkey

The integrated GTO rigging system allows up to 16 cabinets to be flown in a standard vertical array, or up to 12 deep with selectable 3° splay for custom coverage. Sharing the exact footprint of GTO full-range modules, the subwoofer forms part of a complete turnkey solution predicted and optimised using Outline’s OpenArray 3D software.

Road-Ready Construction

Crafted from 18 mm phenolic-bonded Baltic birch plywood, the enclosure features comprehensive internal bracing to eradicate vibration modes. A scratch-resistant waterproof coating, anti-resonant steel grille, recessed handles and a purpose-built ‘3-up’ trolley ensure rapid, reliable deployment on any tour or installation.

Key Features

  • 28 Hz – 160 Hz extended response for full-bandwidth systems
  • 9600 W peak handling and up to 147 dB SPL half-space
  • Flies up to 16 cabinets; identical footprint to all GTO modules
  • Dual connector sets (NL4 & LKI-8) for flexible wiring
  • Robust Baltic birch enclosure with weather protection

Technical Data

Taric / HS Code: 8518.22.00
Frequency Response (-10 dB): 28 Hz – 160 Hz
Sensitivity (1 W @ 1 m): 97 dB free-field / 103 dB half-space
Max SPL Peak @ 1 m: 147 dB half-space
Power Handling (AES): 2 × 1200 W RMS (2 × 4800 W peak)
Impedance: 2 × 8 Ω (min 2 × 6.2 Ω)
Drivers: 2 × 18″ hybrid band-pass woofers
Dispersion: Quasi-omnidirectional (array dependent)
Connectors: 2 × NL4 + 2 × LKI-8 (all parallel)
Rigging Capacity: Up to 16 cabinets flown vertically
Dimensions (H × W × D): 600 × 1126 × 655 mm
Weight: 102 kg
Enclosure: 18 mm Baltic birch plywood, black waterproof finish

Related Documents

GTO SUB Manual
Scroll to Top

New Dealer Enquiry

Please fill out the form below, and one of our friendly business development managers will be in touch to go through your enquiry with you in detail.





    What best describes your business?

    What Ranges are you interested in?

    Sign Up for B2B Access

    Get exclusive pricing and streamlined ordering



      Are you an exisitng dealer?