8PRO300MB-4
8″ PROFESSIONAL
MID-BASS LOUDSPEAKER
OWNER’S MANUAL
SPECIFICATIONS
Nominal Diameter……………………………………………………………….8″/ 203 mm
Nominal Impedance………………………………………………………..4 OHMS
RMS Power Handling……………………………………………………. 150 Watts
MAX Power Handling…………………………………………………….. 300 Watts
Sensitivity (1w/1m)…………………………………………………………………97 dB
Frequency Response……………………………………………………………60Hz-5KHz
Recommended Hi Pass Crossover……………………………………………80 Hz
Sold as Pair or Single……………………………………………………………… Single
MOTOR
Voice Coil Diameter…………………………………………………………… 1.5″ / 38.1 mm
VC Former Material………………………………………………………… Kapton
Winding Material…………………………………………………………………… CCAW
Cone Material……………………………………………………………………………. Paper
Dust Cap Material………………………………………………………………… Paper
Surround Material……………………………………………………………………..Cloth
Basket Material………………………………………………………………………….. Steel
Basket Color/Finish/Color……………………………………….Satin Black
Magnet Material…………………………………………………………………………….Ferrite
Magnet Weight…………………………………………………………………………………. 20 Oz
Displacement Volume………………………………………………………0.48L / 0.016ft3
THIELE & SMALL PARAMETERS
Equivalent Volume…………………….Vas…………………………………..16.4L / 0.579ft3
Excursion…………………………………………….Xmax …………………………………9.8 mm
Free Air Resonance……………….Fs ………………………………………………85 Hz
Mechanical Factor……………………………Qms ……………………………………………… 1.62
Electrical Factor……………………………….Qes …………………………………………… 0.43
Total Factor……………………………………………Qts …………………………………………. 0.34
Mechanical Mass………………………………Mms …………………………………………13.78 g
Mechanical Compliance………….Cms ……………………………………0.25 mm/N
BL Factor…………………………………………………Bl………………………………………….7.82
Voice Coil Inductance……..Le ………………………………………………… 0.38 mH
Cone Area…………………………………………Sd………………………………………… 213.82 cm²
DC Resistance……………………………………Re…………………………………………………..3.5 ohm
MEASUREMENT
Overall Diameter………………………………………………………………………………….. 8.2″ / 210 mm
Overall Depth……………………………………………………………………………….3.8″ / 98 mm
Front Mount Baffle Cutout……………………………………………………7″ / 178 mm
Mounting Depth………………………………………………………………………3.6″ / 92 mm
Motor Diameter………………………………………………………………………………. 4.5″ / 115 mm
WARRANTY
Please visit our website DS18.com for more information on our warranty policy.
We reserve the right to change products and specifications at any time without notice.
Images may or may not include optional equipment.
WARNING:
Cancer and Reproductive Harm.
www.P65Warning.ca.gov
FOR MORE INFORMATION
PLEASE VISIT
DS18.COM
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