User manual MARTIN AUDIO AQ112

[. . . ] CONTENTS AQ Series User's Guide The Martin Experience All material © 2007. Subject to change without notice. AQ Series User Guide Contents 1. Unpacking Warranty Introduction Main features Mounting brackets options Installing with AQ Series brackets Vertical aiming Horizontal aiming Distributed AQ Series systems 10. Loudspeaker dimensions and specifications 17. [. . . ] Choosing a power amplifier The high efficiency and impressive power handling of AQ series loudspeakers combine to produce a system capable of very high sound pressure levels and impact. To realise full AQ Series performance use a power amplifier capable of delivering Peak Power* without excessive clipping. Power amplifier clipping should be avoided. A heavily clipped amplifier will deliver twice its rated power to the loudspeaker. Much of this excess power will be dissipated in the HF section causing premature ageing and, possibly, driver failure. AES Power This is the long-term power capacity of the loudspeaker taking into account the loudspeaker's bandwidth and minimum impedance. It is measured to Audio Engineering Society standards using band-limited pink noise as the test source and is regarded as a reliable indication of the loudspeaker's long-term power handling before thermal damage is caused. *Peak Power This is the short-term power capacity of the loudspeaker and is typically 4x (6dB) higher than the quoted AES power. Martin Audio loudspeakers are designed to handle this short-term peak power. This allows speech and percussion transients to be produced without hindrance whilst a correctly configured AQX controller protects the loudspeaker from accidental long-term overload (e. g. howl-round). AQX limiter time constants are optimized to permit the faithful production of short-term transients at peak power whilst protecting the system from long-term thermal damage. All material © 2007. Subject to change without notice. AQ Loudspeaker Rated Peak Power Suggested Martin Audio Power Amplifier (Note: Set rear gain switches to 32dB, any MLS switches to 0 and any Clip Limiters to Off ­ AQX controller must be used for optimum limiter characteristics) AQ5 (4ohms mode) 300W MA200Q or MA900 AQ5 (16ohms mode) 300W MA2. 8S (for high voltage 16ohm drive) AQ6 standard (8ohms) 400W E1300 or MA1400 AQ6 16 ohm (16ohms) 400W MA4. 2s AQ8 (8ohms) 600W MA1400 or MA1. 6s AQ10 (8ohms) 1. 2KW MA2. 8s AQ12 (8ohms) 1. 2KW MA2. 8s AQ15 (8ohms) 1. 6KW MA4. 2s AQ112 (8ohms) 1. 6KW MA4. 2s AQ210 (4ohms) 2. 4KW MA4. 2s AQ212 (4ohms) 3. 6KW MA4. 2s AQ215 (4ohms) 4. 0KW MA4. 2s AQ5TX30, High quality 100V or 70V line AQ6TX30, amplifier rated at 30W x AQ8TX30 number of spkrs on the line. AQ10TX150, High quality 100V or 70V line AQ12TX150, amplifier rated at 150W x AQ15TX150 number of spkrs on the line Suggested amplifiers for the AQ Series to ensure peak output without excessive clipping (MA and E Series power amplifiers will comfortably drive parallel AQ Series loudspeakers and subwoofers. See Section 15 for further information) Important note!Always set the AQX limiters to suit the power amplifier gain. This will ensure that the AQX controller protects the loudspeaker against long term overload whilst allowing full power amplifier performance on transients. (Martin Audio MA and E Series amplifiers are supplied set to 32dB as standard). 12. AQX System Controller AQ Series loudspeakers have passive crossovers and are designed to be acoustically correct without excessive equalization. We do, however, recommend that you use the Martin Audio AQX analogue 2-input/ 4-output system controller to provide "with sub"/"full range" switching, system limiting and fine frequency response alignment. AQX System Controller All material © 2007. Subject to change without notice. The Martin Audio AQX is a versatile analogue system controller, housed in a single 1. 75" x 19" rack unit, which has been specifically designed to enhance the performance of AQ Series loudspeakers. It provides stereo 2-way active crossover functions for integrating AQ5, AQ6, AQ8, AQ10, AQ12 and AQ15 full range loudspeakers with AQ112, AQ210, AQ212 and AQ215 subwoofers. The controller also acts as an advanced system limiter to protect AQ Series loudspeakers and subwoofers from accidental damage or premature ageing. Limiter thresholds may be user-selected to cater for a wide range of amplifier topologies. The AQX's 20kohm balanced input impedance is suitable for both professional and music industry signal sources whilst its low 62ohm output impedance makes it suitable for driving long cables or multiple amplifier inputs in distributed system designs. AQX features Dedicated AQ Series System Controller User configurable for specific AQ Series combinations 2-way stereo operation 2 electronically balanced XLR inputs 4 electronically balanced low impedance XLR line driver outputs Individual +/-6dB subwoofer level trims on outputs 1 and 3 Low distortion (better than 0. 01% THD ref 2Vrms output) Low noise (better than -100dB ref 2Vrms output) Advanced limiter design Captive mains lead 100-120Vac and 220-240Vac mains operation, 50/60Hz 19" 1U (1. 75") standard rack-mount All material © 2007. [. . . ] Subject to change without notice. 70V or 100V line transformer systems AQ5TX30, AQ6TX30 and AQ8TX30 loudspeakers are supplied with integral 30W line matching transformers. AQ10TX150, AQ12TX150, AQ15TX150 loudspeakers are supplied with integral 150W line matching transformers. TX30 or TX150 loudspeakers are supplied pre-wired, to customer order, for 70V or 100V operation. Please note: 70V loudspeaker systems should not be connected to 100V line amplifiers as this could cause their transformers to saturate resulting in gross distortion and possible line amplifier damage. [. . . ]