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MB QuarT Component System - Test Report

Measured T/S Woofer Parameters
Nominal impedance (Ohms) 4 4
Revc (Ohms) 3.56 3.22
Sd (cone area in sq. Meters) 0.0048 0.0129
Bl (motor strength in Tesla Meters) 4.11 4.78
Vas (in Liters) 1.5 10.8
Mms (cone assembly weight in grams) 5.5 14.4
Fs 99.3Hz 61.8Hz
Qms 5.68 5.86
Qes 0.73 0.79
Qts 0.65 0.69

Power and Excursion Data for QWD 160
Woofer Sensitivity (2.83V/1M) 90.5dB
Continuous Power Handling (Watts) 90RMS
Peak Power Handling (Watts) 180
Xmax ([coil length- gap ht]/2 in mm) 2.49

Computer Box Simulation Data
Enclosure size for simulation (cubic feet) 0.50 (sealed box w/50% fill material)-3dB (F3) at 2.83V 70.0Hz (Box Qtc=0.92)
Voltage to achieve Xmax + 15% (2.86mm) 5.75V
SPL at Xmax + 15% 97dB

SUBJECTIVE SCORE CHART
  Points Possible MB Quart QSD-210 & QSD-164
Overall Sound Quality 20 19
Tonal Balance (above 80Hz) 10 9
Low Frequency Extension 10 10
Clarity at Low Volume 10 9
Clarity at High Volume 10 9
Image stability 10 9
Listening fatigue (moderate volume) 10 9
Flexibility/Ease of installation 20 16
Total Points 100 90

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