Electro-Voice Dominator All-Horn Stage Speaker System User's Manual
Contents
1. The simple interchange of two 9 pin plugs on the rear connector panel converts the Dominator for use with a 600 Hz to 800 Hz active low level crossover see BI AMPING The Electro Voice XEQ 1 crossover makes a good companion to the Dominator for this purpose The exterior of the Dominator enclosure is 5 8 black vinyl covered plywood Rubber feet and carrying handles are provided along with protective aluminum trim covering all edges making the Dominator ready for the road Dominator lage te System FREQUENCY RESPONSE Data was measured in an anechoic echoless environment at 10 feet on axis with 4 volts of swept 1 3 octave random noise The frequency ponse curve for the Dominator is shown in Figure 2 DISPERSION The polar frequency response curves for the Dominator are given in Figure 4 The data was taken using octave bands of random pink noise Vith the speak system s long axis vertical both em horizonta side to side and vertical up and down polar responses shown The measuring microphone was ten feet from the speaker system From this data the 6 dB down points were obtained and beamwidth versus frequency plots were made This information is shown in Figure 3 POWER HANDLING TEST To our knowledge Electro Voice was the first U S manufacturer to develop and publish a power test closely related to real life conditions First we use a random noise input signal because it cont2. BUCHANAN MICH E NEWPORT TENN SEVIERVILLE TENN GANANOQUE ONT B LITHO IN U S A
3. SPECIFICATIONS Usable Frequency Response 60 Hz to 16 kHz Sound Pressure Level 4 ft at 100 watts input 123 dB 10 ft at 1 watt input 95 dB Long Term Average Power Handling 100 watts Nominal Impedance 8 ohms Minimum Impedance 6 8 ohms Crossover Frequencies 600 Hz amp 4000 Hz Beamwidth See Figure 3 Connections Parallel 1 4 phone jacks allows paralleling of multiple speakers Enclosure Material 5 8 plywood Finish Black vinyl with aluminum trim Dimensions 110 2 cm 43 4 high 50 2 cm 19 75 deep 51 3 cm 20 2 wide Shipping Weight 54 4 kg 120 Ib See POWER HANDLING TEST for input spectrum DESCRIPTION The Dominator is a three way all horn stage speaker system Designed for the stage or disco where the extremely high efficiency of a horn system is desirable the Dominator offers excellent performance in a small package without the honky traditional sound of a horn system The Dominator employs an EVM15L feeding a folded horn for the low end The heart of the Dominator is a newly designed midrange horn which was carefully designed to provide exceptionally wide horizontal dispersion The Electro Voice 1829 is coupled to the new horn to achieve a fantastic sound for the midrange The ST350A tweeter with its smooth response and 120 horizontal dispersion provides the high end for the Dominator system For those applications that require it the Dominator is bi ampable
4. ains many frequencies simultaneously just like real voice or instrument program Second our signal contains more energy at extremely high and low frequencies than typical actual program adding an extra measure of reliability Third the test signal includes not only the overall long term average or continuous level which our ears interpret as loudness but also short duration peaks which are many times BEAMWIDTH IN DEGREES I B amp 8388s 4 8 8882882 FREQUENCY IN HERTZ FIGURE 1 Dimensions FIGURE 2 Dominator Frequency Response Swept 1 3 Octave Band Pink Noise 4 V at 10 ft on Axis Half Space Environment FIGURE 3 Dominator Beamwidth vs Frequency System Long Axis Vertical O VERTICAL A HORIZONTAL HORIZONTAL VERTICAL FIGURE 4 Dominator Polar Response System Long Axis Vertical 4 V RMS of Octave Band Limited Pink Noise in Anechoic Environment 10 ft on Axis EU DOMINATOR V IN NORMAL OUT 3 WAY ALL HORN x DE TAME s ct STAGE SPEAKER SYSTEM Po eJ D Pow 1 FIGURE 5 Rear Connector Panel Showing Normal Configuration higher than the average just like actual program The long term average level stresses the speaker thermally heat The instantaneous peaks test mechanical reliability cone and diaphragm excursion Note that the sine wave test sign
5. allel for a standard in out configuration The crossover frequency for bi amp operation should be 600 Hz with either a second order Butterworth 12 dB per octave slopes or third order Butterworth 18 dB per octave slopes response characteristic For flattest response in the crossover region when a second order crossover is used the polarity between the woofer and high frequency sections should be reversed i e the positive output terminal of the low frequency amplifier should go to the positive woofer input phone plug tip on the Dominator and negative output terminal of the high frequency amplifier should go to the positive high frequency input phone plug tip on the Dominator This instruction assumes of course that there is no polarity shift between the high and low frequency amplifier channels When a third order crossover is used the polarity between the woofer and high frequency sections should be the same The Electro Voice XEO 1 crossover is a third order Butterworth device in its normal configuration and appropriate polarity is present with the Phase Reversal switch in the reverse position HI FREQUENCY AUTO LIMITING This is an all solid state electronic device designed by Electro Voice engineers to meet the special demands of high level sound reinforcement The Hi Frequency Auto Limiter efficiently protects the tweeter from overloading by limiting tweeter power input to a predetermined safe level The result is v
6. als sametimes used have a much less demanding peak value relative to their average level In actual use long term average levels exist from several seconds on up but we apply the long term average for several hours adding another extra measure of reliability The Dominator has been specifically tested for 24 hours as follows The output of a pink noise generator is fed to a shaping filter where the frequency spectrum is rolled off at 6 dB per octave beginning at 100 Hz and 10 000 Hz Pink noise is a particular type of random noise with equal power in every octava This shaped signal is sent to the power amplifier with the long term average power set at 100 watts into 8 ohms 28 3 volts true RMS Amplifier clipping sets instantaneous peaks at about 6 dB above the average or 400 watts 55 volts peak This procedure provides a rigorous test of both thermal and mechanical failure modes BI AMPING The Dominator may easily be converted for bi amp operation using a low level electronic crossover such as the Electro Voice XEO 1 On the rear connector panel see Figure 5 there are two 9 pin plugs and sockets with exposed jumper wires For normal operation the 4 wire jumper plug is to the left Reversing the plugs puts the Dominator in the bi amp mode with the low frequency input located at the left input phone jack and the high frequency input at the right input phone jack In normal operation the two input jacks are wired in par
7. irtual absolute driver protection without audible side effects or loss of sound pressure level This all solid state device responds instantaneously and is not dependent on slow moving mechanical parts Hi frequency auto limiting incorporates six solid state devices and a power resistor with appropriate heat sink WARRANTY Limited Electro Voice Music Loudspeaker Systems and Accessories are quaranteed for five years from date of original purchase against malfunction due to defects in workmanship and materials If such malfunction occurs unit will be repaired or replaced lat our option without charge for materials or labor if delivered prepaid to the proper Electro Voice service facility Unit will be returned prepaid Warranty does nat cover finish or appearance items or malfunction due to abuse or operation at other than specified conditions Repair by other than Electro Voice or its authorized service agencies will void this guarantee For repair information and service locations please write Service Depart ment Electro Voice Inc 600 Cecil Street Buchanan Michigan 49107 Phone 616 695 6831 or 7473 Avenue 304 Visalia CA 93277 209 625 1330 1 Electro Voice also maintains complete facilities for non warranty service of E V products Specifications subject to change without notice Part Number 53694 922 a Gulton coway ELECTRO VOICE Inc 600 CECIL ST BUCHANAN MICH 49107 MANUFACTURING PLANTS AT
Download Pdf Manuals
Related Search