Mackie MR8 Owner's Manual - Page 12
Appendix C: Technical Information - tweeter
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MR8 Appendix C: TECHNICAL INFORMATION MR8 Specifications Acoustic Performance Free Field Frequency Response: 40 Hz - 20 kHz (±3 dB) Lower Cutoff Frequency: -3 dB @ 60 Hz Upper Cutoff Frequency: -3 dB @ 22 kHz Sound Pressure Level @ 1 meter, +4 dBu into Balanced Input: 100 dB SPL @ 1m Maximum SPL Per Pair: 116 dB SPL @ 1m Transducers Low Frequency: High Frequency: 8 in/203 mm steel frame cone woofer with rubber surround Wave guide loaded 1 in/25 mm silk dome tweeter Amplifiers Low Frequency Power: 100 watts, 4 ohm load 200 watts peak High Frequency Power: 50 watts, 4 ohm load 100 watts peak Slew Rate: > 15 V/µs Distortion (THD, SMPTE IMD, DIM 100): < 0.035% Signal-to-Noise Ratio: Low Frequency: > 101 dB, 20 Hz to 20 kHz, unweighted, referenced to 100 watts into 4 ohms High Frequency: > 93 dB, 20 Hz to 20 kHz, unweighted, referenced to 50 watts into 4 ohms High-Frequency Type: Monolithic IC, Class AB with DMOS power stage Low-Frequency Type: Discrete bipolar Class AB Equalization Low Frequency EQ: High Frequency EQ: +2 dB/+4 dB @ 100 Hz, shelving ±2 dB @ 5 kHz, shelving AC Power Requirements US: Europe: Korea: Japan: 120 VAC, 60 Hz 240 VAC, 50 Hz 220 VAC, 60 Hz 100 VAC, 50/60 Hz Note: The MR8 does not support multiple voltage configurations. Make sure the voltage rating for your particular model (as indicated on the rear panel near the IEC socket) corresponds with your local AC mains voltage. AC Connector: 3-pin IEC 250 VAC, 16 A male Fuse: 115 VAC: T 3.15AL/250V 230 VAC: T 1.6AL/250V Power Consumption: 100 watts with music, loud mix 20 watts quiescent (idle) Physical Dimensions and Weight Enclosure: 0.625 in/16 mm thick MDF with 0.750 in/19 mm MDF front panel Damping: Adiabatic foam Dimensions: Height: Width: Depth: Weight: 15.75 in/400 mm 16.00 in/406 mm including top of waveguide 10.85 in/276 mm 13.60 in/346 mm 27.6 lb/12.5 kg Electronic Crossover Crossover Type: Crossover Frequency: Sensitivity: Input Impedance: 24 dB/octave 3 kHz +4 dBu at 300 Hz for full output 20 kΩ, balanced bridging; 10 kΩ unbalanced Disclaimer LOUD Technologies is always striving to improve our products by incorporating new and improved materials, components and manufacturing methods. Therefore, we reserve the right to change these specifications at any time without notice. 10.85" (276 mm) 13.60" (346 mm) 16.00" (406 mm) 15.75" (400 mm) MR8 WEIGHT 27.6 lb (12.5 kg) 12 MR8