EMS-81X

Compact two-way passive loudspeaker

EMS-81X

Compact two-way passive reflex-loaded loudspeaker

Current
Asymmetrical multi-angled cabinet for FOH or stage monitor use
Genuine plywood cabinet for sonic benefit over plastic
8″ LF driver, 1″ exit neodymium HF drive units

EMS-81X

The EMS-81X is a compact two-way multipurpose loudspeaker intended for a variety of applications – either as a stand-alone product, or else with the incorporation of S-12 or other S Series subwoofers to make a truly fullrange system. The EMS-81X is completely passive, yet outperforms many bi-amplified or DSP-processed designs.
  • True passive design – no corrective DSP required
  • Rotatable 90° x 60° waveguide
  • 35mm polemount
  • Flexible rigging and mounting options
  • Compatible with OmniMount™ and Powerdrive brackets
  • Impact and weather resistant black or white textured finish as standard
  • RAL colour and enhanced weather protection options

The EMS-81X is completely passive, yet outperforms many bi-amplified or processed designs. The enclosure contains an 8” (203mm) LF drive unit, linked via the internal passive crossover network to a 1.7” (44mm) diaphragm, 1” (25mm) exit HF compression drive unit. The HF drive unit is coupled to a constant-directivity waveguide, which produces a 90° x 60° dispersion pattern which can be easily rotated if required. The multi-angle enclosure along with the rotatable HF waveguide allows use in both horizontal and vertical orientations, as well as use as a compact stage monitor.

The robust enclosure is constructed from premium multi-laminate Birch plywood and is finished in an impact and weather resistant black or white textured polyurethane as standard, though RAL colour matching and enhanced weather-protected outdoor options are available. Two NL4 connections are provided on the rear for input and enclosure link. The front of the loudspeaker is protected by a rigid stainless steel grille backed with acoustically transparent fabric. A flush handle, 35mm polemount socket and various threaded fixings are provided in the enclosure for optional rigging hardware.

The EMS-81X requires a single amplifier channel, and the use of external DSP is recommended for system protection with high pass filters and limiters – as such it is recommended to be used with EM Acoustics’ range of Advanced System Amplifiers. It is however possible to use other DSP-enabled amplifiers, or conventional amplifiers with external DSP. Suitable DSP settings are provided on the EM Acoustics website. The EMS-81X requires a single amplifier channel capable of delivering 400-500W RMS into an 8-ohm load.

Enclosure Type Two-way passive, reflex loaded
Components 1 x 8″ (203mm) neodymium LF drive unit
1 x 1″ (25mm) exit neodymium HF drive unit
Dimensions (HxWxD), mm/(ins) 462 (18.2) x 262 (10.3) x 261 (10.3)
Net/Shipping Weight 13/14kg (28.6/30.8lbs)
Frequency Response 75Hz – 20kHz ± 3dB
Nominal Dispersion 90° x 60°, rotatable (-6dB points)
Maximum SPL 120dB continuous, 126dB peak
Loudspeakers per amplifier
(for full SPL output)*
DQ6: 3 per channel, DQ10: 4 per channel, DQ20: 4 per channel
Di06: 1 per channel, Di10: 2 per channel, Di20: 3 per channel
Power Handling 250W RMS, 500W program
Nominal Impedance 8 ohms

* Higher numbers of loudspeakers per amplifier channel may be possible at reduced overall SPL.  Please consult the user manual for more details.

DFB-81X dual enclosure flying plate set

DFB-81X dual enclosure flying plate set

FC-81Xh horizontal flying cradle - EM Acoustics

FC-81Xh horizontal flying cradle

FC-81Xv vertical flying cradle

FC-81Xv vertical flying cradle

2D Product & Accessory drawings in PDF format
2D Product & Accessory drawings in DWG format

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Product Datasheet

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User Manual

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2D Product & Accessory drawings in DWG format

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Date modified: 25-04-2024
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2D Product & Accessory drawings in PDF format

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Date modified: 25-04-2024
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Revit Family

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Date modified: 11-04-2024
docx

Architects Specifications

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Date modified: 29-04-2022
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Acoustic Simulation Data

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Download all
pdf

Product Datasheet

Size: 618.49 KB
Date modified: 29-01-2024
pdf

User Manual

Size: 10.37 MB
Date modified: 03-05-2024
zip

2D Product & Accessory drawings in DWG format

Size: 7.11 MB
Date modified: 25-04-2024
zip

2D Product & Accessory drawings in PDF format

Size: 2.34 MB
Date modified: 25-04-2024
rfa

Revit Family

Size: 1.55 MB
Date modified: 11-04-2024
docx

Architects Specifications

Size: 877.24 KB
Date modified: 29-04-2022
zip

Acoustic Simulation Data

Size: 2.39 MB
Date modified: 29-04-2022