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MTH-1 Biampable, Mid/High Coaxial Module Speaker System
MTH-1 Biampable, Mid/High Coaxial Module Spealer System
8
SPEAKERS—Portable Systems Part Number 533096 — 9906
600 Cecil Street, Buchanan, MI 49107
616/695-6831, 616/695-1304 Fax
©Telex Communications, Inc., 1999 • Litho in U.S.A.
specifications
Typical Axial Frequency Response,
(swept sine wave, 4 volts at 10 feet,
anechoic environment, normalized for
1 watt, 1 meter into woofer) (see
Figure 1);
160-16,000 Hz
Low-Frequency 3-dB-Down Point:
160 Hz
Usable Low-Frequency Limit (10-dB-
down point):
125 Hz
Half-Space Reference Efficiency:
18.5%
Long-Term Average Power-Handling
Capacity per EIA RS-426-A 1980 (see
Power-Handling section):
Full Range:
350 watts
Mid Frequency:
300 watts
High Frequency:
60 watts
Sensitivity (SPL at 1 watt, 1 meter
input, anechoic environment, swept
sine wave):
105 dB
Dispersion Angle Included by 6-dB-
Down Points on Polar Responses,
Indicated One-Third-Octave Bands of
Pink Noise (see Figure 6),
2,500-16,000 Hz, Horizontal:
60° (+10°, –15°)
2,500-16,000 Hz, Vertical:
40° (+20°, –10°)
Directivity Factor R
q
(Q), 630- 16,000-
Hz Median (see Figure 7):
23.9 (+14.8, –10.2)
Directivity Index D
i
, 630- 16,000-Hz
Median (see Figure 7):
13.6 dB (+14.8, –10.2)
Distortion, 0.1 Full Power Input (see
Figure 3)
Second Harmonic,
100 Hz: 8.9%
1,000 Hz: 1.1%
10,000 Hz: 21.1%
Third Harmonic, 100 Hz:
100 Hz: 5.3%
1,000 Hz: 0.8%
10,000 Hz: 6.0%
Transducer Complement,
Mid Frequency:
DL10X woofer (10 in.); MB horn
High Frequency:
DH2T driver; HP64M horn
Box Tuning Frequency:
160 Hz
Recommended Crossover Frequency:
160 Hz, 1,600 Hz
Crossover Slopes, suggested:
24 dB per octave
Impedance,
Nominal:
8 ohms
Minimum:
6 ohms
Input Connections:
Two paralleled Neutrik Speakon
®
connectors
Suspension (see Suspending MTH-1
Enclosures section):
HSMT-1 independently certified
hanging kit
Materials,
Enclosure:
Black, carpet-covered 3/4-in. void-
free plywood
Grille:
Black, heavy-duty perforated metal
Enclosure Dimensions (see Figure 4),
Height:
591 mm (23.3 in.)
Width:
572 mm (22.5 in.)
Depth:
758 mm (29.9 in.)
Net Weight:
43.1 kg (95 lb)
Shipping Weight:
49.9 kg (110 lb)