EM Acoustics EMS-51 Passive Loudspeaker

EM Acoustics EMS-51 Passive Loudspeaker

Categories: Point source & monitors
SKU: 10M010

The EMS-51 is an ultra-compact two-way passive loudspeaker built for situations where enclosure size matters as much as sound quality. It works as a stand-alone speech and music reinforcement box or as the top box in a system built around an EM Acoustics subwoofer such as the S-12, and it suits venues that want a small, unobtrusive fixture rather than a visible PA element.

Pairs well with

Technical Specifications

Drivers and Dispersion

A 5-inch low-frequency driver is paired with a 1.1-inch soft-dome high-frequency transducer, producing a 75 degree conical dispersion pattern. The cabinet is an infinite-baffle design, which is unusual at this size and gives a gentler 12dB-per-octave low-frequency roll-off along with sturdier bass output than a comparable reflex or sealed box would manage.

Cabinet and Rigging

The enclosure is built from multi-laminate birch plywood finished in impact-resistant textured paint, with RAL colour options available. Both horizontal and vertical mounting yokes ship as standard, and a rigid steel grille protects the drivers up front.

Amplification and Processing

A single amplifier channel delivering 300-500W RMS into 8 ohms is required. Being fully passive, the EMS-51 outperforms many bi-amped or DSP-processed alternatives without needing any active correction; EM Acoustics' DQ Series amplifiers are recommended for best results.

Applications

Compact stand-alone or subwoofer-paired sound reinforcement for corporate AV, hospitality, and general installed sound use.

Key Specifications

  • Frequency Response: 80Hz to 20kHz, plus/minus 3dB
  • Dispersion: 75 degrees conical (-6dB points)
  • Maximum SPL: 113dB continuous, 119dB peak
  • Driver Complement: 1 x 5-inch (127mm) LF, 1 x 1.1-inch (28mm) HF soft dome
  • Nominal Impedance: 8 ohms
  • Power Handling: 200W RMS, 400W programme
  • Connectors: 2 x Neutrik speakON NL4
  • Rigging Points: Horizontal and vertical yoke fixings, threaded enclosure fixings
  • Enclosure Material and Finish: Multi-laminate birch plywood, textured paint (black/white standard, RAL on request)
  • Dimensions (W x H x D): 140 x 250 x 175mm
  • Weight: 4.5kg net
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