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THE DELTAMAX™ SYSTEM
Specifications
CONTROLLER SPECIFICATIONS
CHANNEL CONFIGURATIONS:
Monoaural two-way; two sense channels
FILTER TYPE:
4th-order Linkwitz-Riley
CROSSOVER FREQUENCY:
1,100 Hz
GAIN:
5 dB nominal
SIGNAL PATH EQUALIZATION (see Figure 1),
LF EQ:
-3 dB at 33 Hz, +10 dB at 55 Hz
LF Signal Delay:
0.49 ms at crossover frequency
HF EQ:
4th order optimized for DML-1152A series
HF driver and horn
TOTAL HARMONIC DISTORTION, 20 - 20,000 Hz:
0.03% typical, 0.1% maximum
NOISE, EACH OUTPUT, 20 - 20,000 Hz NBW,
TYPICAL:
-86 dBu
Electronically balanced differential
Maximum Level:
+18 dBu
Impedance:
27,000 ohms and .0015mf
CMRR, Typical:
—55 dB
Connector:
Female 3-pin XLR-type
SENSE CHANNEL INPUTS,
Type:
Floating differential
Maximum Level,
LF: 145 V rms
HF: 145 V rms
Impedance:
100 kilohms each side to ground
Connector:
Two five-way binding posts
OUTPUTS (LF and HF):
Type:
Transformer floating differential
Maximum Level:
+18 dBu
Minimum Load Impedance for Full Level:
600 ohms
Connectors:
Male 3-pin XLR-type
POWER REQUIREMENTS:
100, 120, 220, 240 V ac, 50 - 60 Hz, 13 W
CHASSIS CONSTRUCTION:
Painted steel
COLORS:
Gray front panel/black chassis with white graphics
MOUNTING:
EIA 19-inch rack mount, 1.75 in. high, 8.97 in.
behind panel (including connectors); supplied
with front-panel security cover for controls.
SYSTEM SPECIFICATIONS
Frequency Response, Measured in Farfield,
Calculated to One Meter on Axis, Swept One-Third-
Octave Pink Noise, One Watt into LF Midband
(2.83 V at 250 Hz), Anechoic Environment, +3 dB
(see Figure 2):
50-20,000 Hz
Sound Pressure Level at One Meter, One Watt
Input Power, Anechoic Environment, Band-Limited
Pink-Noise Signal,
High Frequency:
112 dB
Low Frequency:
100 dB
Typical System Maximum Continuous Sound
Pressure Levels at One Meter, Anechoic
Environment:
126 dB
Typical System Maximum Peak Sound Pressure
Levels at One Meter, Anechoic Environment:
132 dB
Crossover Frequency:
1,100 Hz
Beamwidth Angle Included by 6-dB-Down Points
on Polar Responses, Indicated One-Third-Octave
Bands of Pink Noise (see Figure 4),
1.2-20 kHz Horizontal:
60° (+25°, -5°)
1.2-20 kHz Vertical:
40° (+25°, -5°)
Directivity Factor R, (Q) 1.0-20 kHz Median
(see Figure 5):
19.3 (412.8, —7.3)
Directivity Index D, 1.0-20 kHz Median
(see Figure 5):
12.1 dB (+3.0 dB, -1.3 dB)
Distortion, 120 dB SPL at 1 Meter,
Shaped Spectrum (see Figure 6),
Second Harmonic
100 Hz:
4.396
800 Hz:
1.096
Third Harmonic
100 Hz:
0.7%
800 Hz:
1.4%
2,000 Hz:
0.796
5,000 Hz:
1.796
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