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i-Series
User Manual – v2.0
i-1
i-2
i-8
i-12
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 2006
1
i-Series User Manual
www.emacoustics.co.uk
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Summary of Contents for EM Acoustics i-1
- Page 1 User Manual – v2.0 i-12 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 2006 i-Series User Manual www.emacoustics.co.uk...
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Page 2: Table Of Contents
Introduction Thank you ...…………………………………………………………………………………………………………………… 3 Unpacking ………………………………………………………………………………………………………………………. 3 Declaration of Conformity ……………………………………………………………………………………………… 3 Product Range Overview i-1 ultra-compact satellite enclosure …………….……………………………………………………………….4 i-2 ultra-compact fullrange enclosure …………………………………………………………………………….4 i-8 ultra-compact subwoofer enclosure ………………………………………………………………………….5 i-12 compact subwoofer enclosure …………………………………………………………………………….….5 System Set-up Safety Considerations……………………………………………………………………………………………………….6 Cabling &... -
Page 3: Thank You
Unpacking Every EM Acoustics product is built to the highest standard and thoroughly tested before it leaves our factory. After unpacking your loudspeaker, please inspect it carefully for any signs of transit damage. If such damage is found, please notify the carrier at once to instigate a claim. -
Page 4: Product Range Overview
SPL applications. As with all EM Acoustics products, no external equalisation is required to make the i-1 perform as specified. A high-pass filter set at 125Hz (24dB/Octave minimum) is recommended to prevent the drive unit from over- excursion. -
Page 5: I-8 Ultra-Compact Subwoofer Enclosure
NL4MP, although alternatives can be supplied on request. As with all EM Acoustics products, no external equalisation is necessary to get the enclosure to perform as specified. An active low pass filter is however required below 150Hz for correct operation. -
Page 6: System Set-Up
Damage to the ear can result from levels above 90dB under prolonged exposure. Stand Mounting The i-1 yoke has a hole for microphone stand mounting, and the i-2 has two 3/8” threaded fixings for microphone stand mounting. When mounting in this way, please consider the following: •... -
Page 7: Cabling & Amplifier Selection
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. Cabling and Amplifier Selection The i-Series products are designed to be used with professional power amplifiers providing the following power outputs: 80W/channel into eight ohms 1000W/channel into four ohms... -
Page 8: Mounting & Rigging Options
The i-Series loudspeakers have a range of integral rigging hardware to enable usage in a wide variety of ways. The i-1 is supplied with four M5 fixings (one on each side of the enclosure) and a steel yoke. This steel yoke attaches to either pair of fixings to provide pan &... -
Page 9: I-1 Rigging Accessories
Attachment and Adjustment of the YK-i1 yoke The i-1 ships with the YK-i1 yoke attached in the normal operating plane. Should you wish to rotate the yoke (for example to utilise the trapezoidal enclosure shape to fit the i-1 closer into a corner), remove the two countersunk M5 machine screws in the enclosure, and remove the M5 socket-head bolts holding the yoke in place. - Page 10 Safety Considerations When utilising any suspension method, a secondary safety must be used. For the i-1, wrap a safety steel cable around the yoke and then affix securely to your safety point. For the i-2, when using installation brackets or the YK-i2, a forged shoulder M10 eyebolt can be fitted into one of the points on the end of the enclosure, and this can be used to attach a safety.
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Page 11: Amplifier Installation I-12 Subwoofer
Installation of the DA-1 Power Amplifier Module The i-12 subwoofer can accept the EM Acoustics DA-1 digital power amplifier module. One DA-1 is used to drive one i-12, and in this configuration the DA-1 runs in two channel mode, with each pair of drive units driven by one channel. -
Page 12: Maintenance
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. -
Page 13: I-8 Drive Unit Service
4. To reinstate the driver, simply reverse the above procedure. Please observe the correct polarity – white cable to positive terminal, yellow cable to negative. 5. Follow the procedure outlined above to replace the front grille. i-8: Front Low Frequency Drive Units 1. -
Page 14: I-12 Drive Unit Service
i-12: Front Low Frequency Drive Units 1. Carefully remove the foam from the grilles – it is held in place with Velcro fasteners. Using a No.2 Pozidrive screwdriver, undo the Pozidrive screws holding each grille in place, then remove the grilles to gain access to the drive units. -
Page 15: Warranty
Serial numbers must be quoted in all correspondence relating to the claim. EM Acoustics or its representatives are in no way liable for any loss or damage in transit, and hence it is recommended that the sender insure the shipment. -
Page 16: Appendix A - Technical Specifications
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. Enclosure Type: compact fullrange enclosure Dimensions (HxWxD, mm/ins): 130/5.1 x 130/5.1 x 167/6.6 Net Weight: Frequency Response (+/- 3dB): 125Hz –... - Page 17 Enclosure Type: compact fullrange enclosure Dimensions (HxWxD, mm/ins): 151/5.9 x 470/18.5 x 192/7.6 Net Weight: Frequency Response (+/- 3dB): 90Hz – 18KHz Sensitivity: 91dB, 1W/1m Dispersion: 90°H x 20°V (rotatable) Drive Units: 2 x 5” (127mm) LF/MF cone drive units 1 x 1”...
- Page 18 Enclosure Type: compound isobaric subwoofer Dimensions (HxWxD, mm/ins): 308/12.1 x 530/20.9 x 450/17.7 Net Weight: 28kg Frequency Response (+/- 3dB): 35Hz – 150Hz Sensitivity: 93dB, 1W/1m Drive Units: 4 x 8” (203mm) LF cone drive units Power Handling: 600W RMS, 1200W Program Maximum SPL: 122dB continuous, 128dB peak Nominal Impedance:...
- Page 19 i-12 Enclosure Type: compound isobaric subwoofer Dimensions (HxWxD, mm/ins): 420/16.5 x 823/32.3 x 700/27.6 Net Weight: 83kg Frequency Response (+/- 3dB): 27Hz – 100Hz Sensitivity: 93dB, 1W/1m Drive Units: 4 x 12” (305mm) LF cone drive units Power Handling: 1000W RMS, 2000W Program Maximum SPL: 128dB continuous, 136dB peak Nominal Impedance:...
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