Nexo STM M28 Omni Module

Injection-moulded all-purpose loudspeaker cabinet which fulfils the role of downfill, providing 120° of horizontal dispersion and 0°-15° splaying angle between modules.

Nexo STM M28 Omni Module

Same width as M46, 2/3 height, the M28 can also be used independently from M46 or B112.

Key Features

  • 2 x 8 inch LF Drivers
  • 4 x 4 inch MF Drivers
  • 1 x HF Compression Driver
  • 140dB peak SPL
  • Frequency response: 60Hz-20kHz
  • H233mm/W575mm/D715mm
  • 38Kg/84lb

Specifications

STM M28 with NXAMP 4x4
Frequency Response [a]  60Hz – 19kHz ±3dB
Usable Range @-6dB [a] 55Hz – 20kHz
Sensitivity 1W @ 1m [b] 106dB SPL Nominal
Nominal Peak SPL @ 1m [b] 140dBPeak
Dispersion [c] 120° Horizontal x 0-15° vertical
Crossover Frequency LF-MF: 300Hz (Active) – MF-HF: 2.2 kHz (Passive)
Nominal Impedance LF: 8 O (6 O min) - MF/HF: 8 O (6 O min)
Amplified Controller NXAMP4x4 - 3xSTM M28 in parallel on 2 NXAMP4x4 channels - 2x4000W/2O
Product Features
LF Components 2 x 8” (20cm) 8 O high excursion drivers
MF Components 4 x 4” (10cm) 8 O flat membrane drivers
HF Components 1 x 2.5” voice coil,  1.4” throat Neodymium 16 O drivers,  Kepton Polymer diaphragm
Height x Width x Depth 233 x 575 x 715 mm – 13.78” x 22.64” x 28.15”
Weight Net 38 kg – 84 Lb
Connectors 2 x NLT4-MDV Speakon 4 poles
Construction PU Composite Low Density – Polyurethane water based black coating
Fittings 
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 15° 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+: LF - 2-/2+: MF/HF

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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