EMS-51 Compact Fill Loudspeaker User Manual – v1.0 EM Acoustics Loudspeakers Building 74, Dunsfold Park Cranleigh, Surrey GU6 8TB, UK Phone +44 (0) 1483 266520 Fax +44 (0) 1483 275619 www.emacoustics.co.uk _________________________________________________________________________________________ Copyright EM Acoustics 2012 1 EMS-51 User Manual www.emacoustics.co.
CONTENTS Introduction Thank you ...……………………………………………………………………………………………………………………………. 3 Unpacking ……………………………………………………………………………………………………………………………….. 3 Declaration of Conformity …………………….…………………………………………………………………………………… 3 Product Overview EMS-51 passive two-way fill enclosure .........……………………………………………………………………………… 4 System Set-up Safety Considerations………………………………………………………………………………………………………………… 5 Cabling & Amplifier selection ……………………………………………………………………………………………………… 6 Protective DSP Settings ...................
INTRODUCTION Thank you Thank you for purchasing a product from the acclaimed EMS Series from EM Acoustics. The EMS Series products have been carefully designed and rigorously tested to ensure years of flawless operation and unprecedented sonic quality. Flexibility is the key factor with EMS products, and consequently they are at home within a wide variety of applications from live and portable applications, through to cafes, bars, nightclubs, theatres and conference centres.
PRODUCT OVERVIEW EMS-51 compact fill loudspeaker The EMS-51 is a compact, versatile, fill loudspeaker product designed for a wide variety of compact and discreet sound reinforcement applications. It features a high-power 5” (127mm) LF drive unit in an infinite baffle enclosure, and a 1.1” (28mm) soft dome high frequency drive unit. These components are matched by an internal passive crossover network for unprecedented sonic quality from a completely passive enclosure.
SYSTEM SET-UP Safety Considerations Loudspeaker systems are potentially dangerous objects if used incorrectly. Please ensure that you read this section fully, and contact EM Acoustics or your local dealer should you be in any doubt over correct operation procedures. Professional loudspeaker systems are capable of producing damage-inducing sound pressure levels, and hence care should be taken when setting your system up, particularly when it comes to loudspeaker placement within a venue.
personnel following safe working practice. Should you be in any doubt whatsoever, please contact your local dealer who will be able to refer you to a suitable rigging company.
Protective DSP Settings The EMS-51 requires no DSP program to function correctly. However, excessive low frequency information will cause the LF drive unit’s excursion to increase, which can result in damage to your loudspeaker. The higher you raise the high pass filter on an EMS-51, the more headroom and overall sound pressure level output there is available.
MOUNTING & RIGGING OPTIONS Rigging Hardware & Accessories The EMS-51 is supplied with the YK-51v and YK-51h flying yokes for mounting and suspension. The EMS-51 contains four M8 threaded fixing points around the enclosure, to enable suspension using forged shoulder eyebolts (minimum thread length 10mm) or the included YK-51v vertical or YK-51h horizontal flying yokes.
Attachment of the YK-51v or YK-51h flying yokes The YK-51v and YK-51h flying yokes both attach in the same way. Using the supplied M8 hand knobs, align the mounting holes in the yoke with the mounting points on the enclosure. Ensure that the washers are also used when fitting the bracket – the flat washer should be in contact with the yoke, and the spring washer will sit between the flat washer and the locking knob. Once the desired angle is set, tighten the knobs to lock the position in place.
MAINTENANCE Your EM Acoustics loudspeakers have been rigorously tested before they leave our factory, to ensure that they give you a lifetime of flawless operation. Should any of your drive units fail and need replacing, please follow the guidelines below. EMS-51: Low Frequency Drive Unit 1. Using a #2 Phillips head screwdriver, undo the countersunk M4 screws top & bottom of the enclosure (1 each end). Gently remove the grille from the front of the enclosure. 2.
WARRANTY Limited Warranty This EM Acoustics loudspeaker product is warranted to the original end-user purchaser and all subsequent owners for a period of three years from the original date of purchase. Warranty Coverage This warranty covers defects in materials and workmanship. It does not include: Damage or failure caused by accident, misuse, neglect, abuse or modification by any person other than an authorised EM Acoustics representative.
APPENDIX A – TECHNICAL SPECIFICATIONS EM Acoustics operates a continuous process of research and development, and as such reserves the right to alter specifications without notice. EMS-51 ENCLOSURE TYPE: DIMENSIONS (HxWxD): NET/SHIPPING WEIGHT: FREQUENCY RESPONSE1: SENSITIVITY2: DISPERSION3: DRIVE UNITS: POWER HANDLING: MAXIMUM SPL4: NOMINAL IMPEDANCE: CROSSOVER: CONNECTORS: ENCLOSURE: RIGGING & HARDWARE: GRILLE: OPTIONS: ACCESSORIES: SPARE PARTS: two-way passive, infinite baffle 250 (9.9) x 140 (5.