Powered Mackie SRM 450 Full Range Loudspeakers

Description:

SRM450 provides 400 watts of amazing sonic clarity through two robust drivers: a 12" woofer and a 1.75" tweeter. Spoken word is crystal clear, and music has maximum punch while retaining nuance. In addition to their full-range frequency coverage, these speakers provide wide-dispersion sound coverage thanks to their specially designed, wave-guiding enclosure.The SRM450 has its own, perfectly matched, perfectly bi-amped internal power, meaning you'll always get the most volume and fidelity for your wattage.

Features:

• SRM450 SPECIFICATIONS
• Line Input Power
• US 120 VAC, 60Hz
• Recommended amperage service 2.5 amps
• Europe 230 VAC, 50Hz
• Recommended amperage service 1.25 amps
• Japan 100 VAC, 50/60Hz
• Recommended amperage service 3.0 amps
• AC Connector 3-pin IEC 250 VAC
• Control System Function
• Electronic Crossover
• Phase Alignment
• Equalization
• Parametric Equalization
• Safety Features
• Over-Excursion Protection
• Second-Order High-Pass Filter
• Thermal Protection Amplifier shutdown, auto-reset
• Low-Line Voltage Shut Down
• 60% Nominal line
• Driver Protection Independent LF and HF compressors
• Low-Freq Roll-Off Dynamic, signal-level dependent
• Construction Features
• Basic Design Asymmetrical Trapezoidal
• Enclosure Alignment Sixth-Order
• Material Polypropylene
• Finish Midnight Blue, textured finish
• Handles One on each side, one on top
• Mounting Methods
• Integrated mounting points, M10
• Two each located on each side, top, bottom, and rear of enclosure. Grille Perforated metal with weather-resistant coating
• Display LEDs Signal Present, Peak, Power ON, and Thermal
• Physical Properties
• Height 26.0 in/660 mm
• Width 15.4 in/390 mm
• Depth 14.8 in/376 mm
• Weight 40 lb/18 kg
• Options
• PA-A1 forged shoulder eyebolt hardware (M10 x 1.5 mm x 20 mm)
• SPM100 (Speaker Pole Mount)
• 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.
• trademarks of LOUD Technologies Inc.
• All other brand names mentioned are trademarks or registered
• trademarks of their respective holders and are hereby acknowledged.
• Frequency Response (3 dB)
• 55 Hz 18 kHz
• Frequency Range (10 dB)
• 45 Hz 20 kHz
• Directivity Factor; Q (DI)9.95 (9.98), averaged 2 kHz to 10 kHz
• Max SPL Long-term @ 1m
• 124 dB
• Max SPL Peak @ 1m 127 dB
• Crossover Linkwitz-Riley,
• 24 dB/octave @ 1600 Hz
• Audio
• Input Type Balanced Differential
• Input Impedance 20 kohms
• Input Protection RFI and level protected
• Sensitivity
• Line: +4 dBu (center detent)
• Mic: 36 dBu
• Maximum Input Level +22 dBu
• Low-Cut Frequency 75 Hz, Second-order filter
• Acoustic Contour Equalization
• Peaking: +3 dB @ 100 Hz,
• +3 dB @ 12 kHz
• Operating Temperature Range
• 10C to 45C (14F to 113F)
• Power Amplifiers
• Low-Frequency Power Amplifier
• Rated Power 300 watts*
• Rated THD < 0.1%
• Cooling Convection Extrusion
• Design Class D, Parametric Servo Feedback
• High-Frequency Power Amplifier
• Rated Power 100 watts*
• Rated THD < 0.1%
• Cooling Convection Extrusion
• Design Conventional Class AB
• *Rated power is continuous rms wattage into transducers rated impedance @ 5 kHz
• for the HF amplifier and @ 500 Hz for the LF amplifier.
• Transducers
• Low-Frequency Transducer
• Diameter 12 in/300 mm
• Voice Coil Diameter 3.0 in/75 mm
• Sensitivity (1W@1m) 98 dB
• Nominal Impedance 8 ohms
• Power Handling 600 watts, program
• Frequency Range 45 Hz 3 kHz
• High-Frequency Transducer
• Diaphragm Diameter 1.75 in/44.5 mm
• Diaphragm Material Heat treated titanium
• Sensitivity (1W@1m) 106 dB
• Nominal Impedance 8 ohms
• Power Handling 100 watts, program
• Frequency Range 1 kHz 20 kHz
• Horn Design
• Type Conical and Exponential
• Mouth Size 12 in/304.8 mm (W) x 7 in/177.8 mm (H)
• Throat Diameter 1 in/25.4 mm
• Horizontal Coverage 90 (1 kHz-20 kHz)
• Vertical Coverage 45 (2.8 kHz-20 kHz)