S15 Two-Way Stage Speaker System
S15 Two-Way Stage Speaker System
Part Number 533650 – 9639
600 Cecil Street, Buchanan, MI 49107
800/234-6831, 616/695-6831, 616/695-1304 Fax
a
MARK IV company
SPEAKERS—Portables
Specifications
Typical Axial Frequency Response,
Swept Sine Wave, 4 volts at 3.05 meters
(10 feet), (anechoic environment,
normalized for 1 watt at 1 meter; see
Figure 1):
67-20,000 Hz
Low-Frequency 3-dB-Down Point:
67 Hz
Usable Low-Frequency Limit (10-dB-
down point):
52 Hz
Efficiency:
3.3%
Long-Term Average Power-Handling
Capacity per EIA Standard RS-426A
(see Power-Handling section):
250 watts
Maximum Woofer Acoustic Output:
8.3 watts
Sensitivity (SPL at 1 watt, 1 meter
Input, Anechoic Environment, Swept
Sine Wave):
99 dB
Dispersion Angle Included by 6-dB-
Down Points on Polar Responses,
Indicated One-Third-Octave Bands of
Pink Noise (see Figure 6),
2,500-20,000 Hz, Horizontal:
60° (+14°, –25°)
2,500-20,000 Hz, Vertical:
40° (+12°, –0°)
Directivity Factor R
θθθθθ
(Q), 800- to
16,000-Hz Median (see Figure 7):
19.5 (+11.4, –13.2)
Directivity Index D
i
, 800- to 16,000-Hz
Median (see Figure 7):
12.9dB (+2.0dB, –4.9 dB)
Distortion, 0.1 Full Power Input, (see
Figure 2)
Second Harmonic,
100 Hz:
–36 dB, 1.5%
1,000 Hz:
–33 dB, 2.2%
10,000 Hz:
´–20 dB, 10%
Third Harmonic,
100 Hz:
–45 dB, 0.6%
1,000 Hz:
–45 dB, 0.6%
10,000 Hz:
–35 dB, 1.8%
Transducer Complement,
Low-Frequency:
SG15 15-inch woofer
High Frequency:
DH2010A driver
HP64M constant-directivity horn
Box Tuning Frequency:
62 Hz
Crossover Frequency:
2,900 Hz
Crossover Slope:
12 dB per octave
Impedance,
Nominal:
8 ohms
Minimum:
6.9 ohms
Input Connections:
Two parallel 1/4-inch phone jacks
(Two parallel Neutrik Speakon
®
NL4MP connectors on S15-E)
Enclosure Materials and Colors:
Black-carpeted Road-Wood
TM
Black perforated metal grille
Dimensions (see Figure 4)
Height:
778 mm (30.7 in.)
Width:
505 mm (19.9 in.)
Depth:
403 mm (15.9 in.)
Net Weight:
24.5 kg (54 lb)
Shipping Weight:
28.1 kg (62 lb)
Optional Accessory:
100BK mounting stand
Figure 7—Directivity vs. Frequency
(anechoic environment)
