Electro-Voice Musicaster IA User's Manual
Contents
1. DESCRIPTION amp APPLICATIONS The Electro Voice Musicaster 1A and Musicaster LIA are compact wide range integrated loudspeaker systems particularly suited to voice and music reproduction Excellent bass response in units of modest size is achieved by use of a special 12 inch wide range driver and through optimum design of the bass reflex enclosure High fre quencies are smoothly and efficiently radiated from the exclusive Electro Voice Radax dual cone driver assembly In addition the Musicaster IIA utilizes a Model T35A very high frequency compression driver The T35A pro vides wider and more uniform high frequency dispersion above 5 kHz and significantly more highs above 10 kHz Rugged construction of the Musicasters is achieved through use of a one piece compression molded housing The material is highly resilient glass filled polyester All parts of the Musicasters are weatherproofed and fungusproofed for reliable operation under all weather conditions The Musicasters may be used indoors or out ENGINEERING Figure 1 Dimensions in homes offices or industrial applications The speaker may also be permanently mounted in any position for high quality sound coverage The mounting bracket easily converts to a carrying handle permitting portability of this powerful system Careful design of these systems has achieved a rich musical balance without loss of clarity or speech intelligi bility This is particularly2. important in installations which require use of the system for both paging and music distribution The Radax cone design virtually eliminates the danger of failure due to accidental high frequency feedback Wide range feedback problems are reduced due to smooth peak free response The Musicasters are ideally suited for use in schools churches auditoriums meeting halls restaurants super markets and offices as well as portable home high fidelity loudspeakers for the patio the family room and throughout the house At square dances rallies picnics and outdoor concerts the Electro Voice Musicasters will perform reliably delivering wide range music and crisp clear speech MUSICASTER IA IA ALL WEATHER SPEAKERS SPECIFICATIONS Musicaster lA Musicaster IIA Frequency Response 80 10 000 Hz 80 16 000 Hz Dispersion 120 120 EIA Pressure Rating 49 db 49 db Sound Pressure Level 111 db 500 to 1500 Hz at 4 Same on axis with 30 watts input Power Handling Capacity 30 watts Program Material Same 60 watts Peak Nominal Impedance 8 ohms 8 ohms Mechanical Crossover 4 000 Hz 4 000 Hz Electrical Crossover None 5 000 Hz Mounting Universal U bracket housing Same designed to stand stably on any flat surface Size 21 h x 21 w x 8 d Same Weight 29 Ibs 31 Ibs ERE SUAMVadS YIHIVIM Y VH YI YALSY ISNAN INSTALLATION INSTRUCTIONS Loosen the hex bolts on both sides to adjust the U mount
3. 2 terminals H Hine Hil ie M ee Ls EUR ims 8 E 88 beaks FREQUENCY IM CYCLES FER SECOND ree 8 Figure 3 Frequency Response Musicaster IIA Part No 534633 ts should be connected to the opposite side For series operation the T1 terminal of one unit should be con nected to the T2 terminal of the next and so forth ARCHITECTS AND ENGINEERS SPECIFICATIONS The outer housing shall be of one piece rectangular compression molded construction The material shall be glass filled polyester The back panel shall be of weather proof oil tempered pressed board construction A U type mounting bracket suitable for use as a portable carrying handle shall be provided The housing shall be designed so as to allow it to remain stable when placed on a flat surface A protective screen shall be provided to shield the loudspeaker The speaker shall be weatherproof and fungus proof The cone speaker shall be 8 ohms nominal impedance and have a 12 nominal diameter It shall be of the dual cone Radax design If Musicaster ITA is specified a compression type tweeter shall be provided utilizing a diffraction horn for frequencies above 3500 Hz Terminals shall be phased Frequency response shall be 80 10 000 Hz Musicaster IIA 80 16 000 Dis persion shall be 120 degrees The EIA pressure level rating shall be 49 db Sound pressure level from 500 to 1500 Hz measured at 4 feet on axis with 30 watt
4. ing bracket to the desired position For permanent mounting the bracket should be completely removed from the unit and mounted in the desired location The Musicaster can then be replaced on the bracket This procedure will be the simplest particularly when the system may be difficult to reach since it will not be necessary to support the weight of the entire system while positioning and attaching the bracket Because the Musicaster is fully weatherproofed it may be mounted at any angle For portable applications the mounting bracket may be adjusted to an upright position to serve as a carrying handle The Musicaster should be carefully directed toward the area to be covered by sound Avoid locating microphones in the general area in front of the speaker to reduce the possibility of feedback When used indoors the speakers should be positioned so that pro jected sound does not bounce off highly reflective walls into the microphone s Best sound coverage will be obtained within a 120 degree angle from the loudspeaker with both vertical and hori zontal coverage identical Improved bass response will be achieved by locating the Musicaster adjacent to a wall or ideally in a corner Corner mounting provides maximum bass response WIRING The Musicaster has a nominal impedance of 8 ohms When two or more units are connected in parallel for proper phasing all the terminals coded T1 should be connected to one side of the line and all the T
5. s input shall be 111 db Power handling capacity shall be 30 watts of program material or 60 watts peak Size shall not exceed 21 inches high by 21 inches wide by 8 inches deep Net weight shall be 29 pounds Musicaster IIA 31 pounds Electro Voice Musicaster A or Musicaster ITA is specified Specifications subject to change without notice Musicaster IA Musicaster IA Scale is 5 db per division 7 000 Hz 10 000 Hz Figure 4 Polar Dispersion T1 RED T2 BLACK Figure 5 Wiring Diagram ELECTRO VOICE INC Buchanan Michigan A Subsidiary of Gulton Industries Inc 933 Litho in U S A
Download Pdf Manuals
Related Search