The NEXO GEO M Series subwoofers are engineered to deliver powerful, controlled low‑frequency performance that integrates seamlessly with GEO M line array systems. Designed for both touring and permanent installation, these subwoofers share the same sonic signature, phase response and rigging philosophy as GEO M main modules, ensuring predictable performance and scalable system design.
Available in 12‑inch, 15‑inch and 18‑inch formats, GEO M subwoofers support omnidirectional and cardioid configurations, allowing precise control of low‑frequency energy across a wide range of venue sizes and applications.
GEO M Subwoofer Model Overview
| Model | Configuration | Operating Modes | Frequency Response | Max SPL |
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| MSUB12 | 1 × 12" LF (Compact band‑pass) | Omni / Cardioid | ~45 Hz – 120 Hz | ~133 dB peak |
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| MSUB15 | 1 × 15" LF (Band‑pass) | Omni / Cardioid | 40 Hz – 120 Hz | 136 dB peak |
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| MSUB18 | 1 × 18" LF (Hybrid band‑pass) | Omni / Cardioid | 32 Hz – 120 Hz | 139 dB peak |
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MSUB12 – Compact 12" Arrayable Subwoofer
The MSUB12 is a compact, lightweight 12‑inch arrayable subwoofer designed to complement GEO M6 systems and smaller‑scale GEO M deployments. Its reduced size makes it ideal for venues with space or weight limitations while still providing musical, controlled low‑frequency reinforcement. MSUB12 is well suited to theatres, corporate spaces, houses of worship and hospitality venues where visual impact must be minimised.
Typical system ratios:
- 2 × GEO M6 : 1 × MSUB12 (speech and light music reinforcement)
- 3 × GEO M6 : 2 × MSUB12 (full‑range performance)
- Ground‑stacked systems: 1–2 MSUB12 per side depending on SPL requirements
MSUB15 – Compact 15" Arrayable Subwoofer
The MSUB15 is a compact, high‑output 15‑inch arrayable subwoofer designed as the ideal low‑frequency partner for GEO M10 systems. Its efficient band‑pass design delivers tight, articulate bass while maintaining a compact footprint for flown or ground‑stacked deployments. Front‑to‑rear connectivity allows straightforward implementation of cardioid configurations for improved low‑frequency control in acoustically challenging spaces.
Typical system ratios:
- 2 × GEO M10 : 1 × MSUB15 (light to medium reinforcement)
- 3 × GEO M10 : 2 × MSUB15 (most common full‑range configuration)
- Ground‑stacked systems: 2 MSUB15 per stack with up to 3 GEO M10 above
MSUB18 – High‑Output 18" Arrayable Subwoofer
The MSUB18 is a very high‑power 18‑inch arrayable subwoofer designed to complement GEO M12 systems and larger‑scale GEO M deployments. Using a hybrid band‑pass design with a long‑excursion Neodymium driver, the MSUB18 delivers deep, controlled low‑frequency extension with exceptional output. It is equally suited to flown arrays or ground‑stacked systems and supports omni and cardioid configurations for precise bass management in large or high‑impact venues.
Typical system ratios:
- 2 × GEO M12 : 1 × MSUB18 (speech‑focused or moderate SPL applications)
- 3 × GEO M12 : 2 × MSUB18 (high‑impact full‑range systems)
- Large venues / long‑throw systems: 1 MSUB18 per GEO M12 cabinet for maximum LF headroom
Versions, Finishes & Integration
MSUB12, MSUB15 and MSUB18 are all available in Touring and Installation versions, with black, white and custom RAL colour finishes to suit both production environments and architecturally sensitive venues. Integrated rigging, front and rear connectivity, and compatibility with NEXO amplification and processing platforms ensure safe deployment and consistent performance across all GEO M system configurations.
