Nexo STM B112 Bass Module

Nexo STM B112 Bass Module's injection-moulded bass cabinet features a Neodymium high excursion 3000W 12" bass driver with 4" voice coil.

Nexo STM B112 Bass Module

It has the same format – dimensions, weight, gravity centre – as the M46. The hybrid horn-loaded design maximizes the efficiency of the driver, delivering 6dB more than a standard front-loaded driver in this frequency range.

Key Features

  • 1 x 3000W +/- 3cm excursion 12 inch LF Driver
  • 141dB peak SPL
  • Frequency response: 63Hz-200Hz
  • H350mm/W575mm/D715mm
  • 55Kg/121lb


STM B112 with NXAMP 4x4
Frequency Response [a] 63Hz – 200Hz ±3dB
Usable Range @-6dB [a] 55Hz – 250Hz
Sensitivity 1W @ 1m [b] 107dB SPL Nominal
Nominal Peak SPL @ 1m [b] 141dB Peak
Nominal Impedance 16O (12 O min)
Amplified Controller NXAMP4x4 - 3xSTM B112 in parallel on 2 NXAMP4x4 bridged channels - 8000W/4O
Product Features
Components LF: 1 x 12” (30cm) 3000W high excursion Neodymium 16 Ohms driver.
Height x Width x Depth 350 x 575 x 715 mm – 13.78” x 22.64” x 28.15”
Weight Net 55 kg – 121 Lb
Connectors 2 x NLT4-MDV Speakon 4 poles (in/out)
Construction PU Composite Low Density – Polyurethane water based black coating
Handles 3 handles (2 sides and 1 rear)
Front Perforated Dark Grey Metal Grille
Rigging Integral 3 points flying system. Intercabinet angle adjustments from 0.2° to 10° in logarithmic steps
System Operation
Electronic Controller The NEXO NXAMP4x4 presets are precisely matched to the STM Series cabinets and include sophisticated protection algorithms. Using STM Series cabinets without a properly connected NEXO NXAMP4x4 will result in poor sound quality and can damage components.
SubBass STM S118 extends system low frequency response down to 25Hz
Speaker Cabling 1-/1+: SUB - 2-/2+: LF

As part of a policy of continual improvement, NEXO reserves the right to change specifications without notice.

  • [a] Response curves & data : Half-Space Far Field for the STM S118 & B112 + NXAMP4x4.
  • [b] Sensitivity & Peak SPL data : these will depend on spectral distribution and crest factor of program material. Measured with band limited Pink Noise. Data are for speaker + amplified controller. Peak SPL is at clipping of NXAMP4x4.
  • [c] Directivity curves & data : obtained by computer treatment on off axis response curves.
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