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Acoustic Performance
Frequency Response (–10 dB): 36 Hz – 145 Hz
Frequency Response (–3 dB): 43 Hz – 92 Hz
Max peak SPL (calculated)
1
: 131 dB
Max peak SPL (measured)
2
: 126 dB
Transducer
Diameter: 15.0 in / 381 mm
Voice Coil Diameter: 3.0 in / 76 mm
Diaphragm Material: Paper
Magnet Material: Ferrite
Power Amplier
Rated Power: 600 watts rms
1200 watts peak
THD: < 0.03%
Design: Class D
Cooling: Active, twin thermally
controlled vari-speed
fans
Input/Output
Input Type: Female XLR Balanced
differential
(stereo left/right)
Input Impedance: 20 k
Full Range Output: Male XLR Balanced
(parallel with input)
High Pass Output: Male XLR Balanced
Output Impedance: 300
Level Control: –6 dB to +6 dB
Electronic Crossover
Crossover Type: 24 dB/oct.
Symmetrical
Linkwitz-Riley
Crossover Frequency: 100 Hz
1 Calculated from peak driver sensitivity and amplifier power, half space.
2 Measured with swept sine at 1 W within operating range, scaled for max power, half
space.
Protection Features
Over-excursion Protection: 45 Hz 24 dB/oct.
Butterworth High
Pass Filter
Thermal Protection: Amplifier mute, auto
reset, twin thermally
controlled vari-speed
fans
Driver Protection: Peak/RMS Limiter
Display LEDs: Power Light ON, Polarity
Invert, Thermal,
Sig/Limit, Front Power
ON
AC Power Requirements
US: 100-120 VAC, 50-60 Hz,
300 watts
Europe: 220-240 VAC, 50-60 Hz,
300 watts
AC Connector: 3-pin IEC 250 VAC,
15 A male
Construction Features
Basic Design: Rectangular
Material: 15 mm exterior grade
premium birch plywood
Finish: High durability black
paint
Handles: One on each side
Grille: Powder-coated
galvanized steel
Physical Properties
Height: 20.0 in / 508 mm
Width: 18.25 in / 464 mm
Depth: 25.0 in / 635 mm
Weight: 80.0 lb / 36.3 kg
Mounting Methods
Floor mount only
WARNING: The cabinet has no rigging points and is not
suitable for rigging. NEVER attempt to suspend the HD1501 by
its handles.
Disclaimer
Since we are always striving to make our products better by
incorporating new and improved materials, components, and
manufacturing methods, we reserve the right to change these
specifications at any time without notice.
“Mackie” and the “Running Man” figure are registered
trademarks of LOUD Technologies Inc.
All other brand names mentioned are trademarks or registered
trademarks of their respective holders, and are hereby
acknowledged.
HD1501 Specications
Appendix C: Technical Information
©2010 LOUD Technologies Inc.
All Rights Reserved.
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HD1501
HD1501