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Appendix C: TH-15A Specifications
Equalization
Low Frequency EQ: ±15 dB @ 80 Hz, shelving
Mid Frequency EQ: ±15 dB, bandpass,
sweepable from100 Hz to
8 kHz
High Frequency EQ: ±15 dB @ 12 kHz,
shelving
Direct/EQ Switch: Bypasses EQ section
Protection Features
Over-excursion Protection: Second-order sub-sonic
filter
Thermal Protection: Independent amplifier
shutdown, auto reset
Driver Protection: Independent HF and LF
compressors
AC Power Requirements
US: 100 – 120 VAC,
50 – 60 Hz 320 watts
EU, CN: 200 – 240 VAC,
50 – 60 Hz 320 watts
AC Connector: 3-pin IEC 250 VAC,
20 A male
Construction Features
Basic Design: Asymmetrical Trapezoidal
Material: Polypropylene
Finish: Textured
Handles: One on each side, one on
top
Grille: Perforated metal with
weather-resistant coating
Display LEDs
Front: Power ON
Rear: Power ON, OL (overload)
Operating Temperature: 0˚ – 40˚C
32˚ – 104˚F
Physical Dimensions and Weight
Dimensions
Height: 27.6 in / 702 mm
Width: 16.8 in / 427 mm
Depth: 15.5 in / 394 mm
Weight: 36 lb / 16.3 kg
Mounting Methods:
Pole-mountable via the built-in socket on the
bottom of the cabinet. Be sure the pole is
capable of supporting the weight of the TH-15A.
Acoustic Performance
Frequency Range (–10 dB): 40 Hz – 20 kHz
Frequency Response (–3 dB): 50 Hz – 18.5 kHz
Horizontal Coverage Angle: 90º
Vertical Coverage Angle: 60º
Maximum SPL Long-Term: 118 dB SPL @ 1m
Maximum SPL Peak: 121 dB SPL @ 1m
Input/Output
Input Type: Female XLR Balanced /
Unbalanced
Input Impedance: 20 k
balanced
bridging;
10 k
unbalanced
Loop-through: Male XLR Balanced /
Unbalanced
(parallel with input)
Level Control: Rotating knob
0 dB at center
Sensitivity: +4 dBu for full output
(Level Control @ Center)
–36 dBu for full output
(Level Control @ Max)
Transducers
Low Frequency: 15 in / 381 mm with
steel frame, paper cone
woofer
High Frequency: Horn-loaded 1 in /
25 mm exit compression
driver
Power Ampliers
Low Frequency Power Amplifier
Rated Power: 150 watts, 8 ohm load
300 watts peak
Signal-to-Noise Ratio:
> –94 dB, 20 Hz to 20 kHz, unweighted,
referenced to 138 watts into 8 ohms
Design: BTL Class D
High Frequency Power Amplifier
Rated Power: 50 watts, 4 ohm load
100 watts peak
Signal-to-Noise Ratio:
> –97 dB, 20 Hz to 20 kHz, unweighted,
referenced to 50 watts into 4 ohms
Design: Class AB
Electronic Crossover
Crossover Type: 24 dB/octave
Crossover Frequency: 3 kHz