Technical Manual
Plus One
™
Woofer Cones
Harman’s patented (US patent #7,548,631) Plus One
™
polypropylene cones provide more
overall speaker-cone area than other cones in its class — the result is higher sensitivity,
increased low-frequency output and greater musical character.
Balanced Dome Tweeters
Weather resistant tweeters deliver a smooth high-frequency response and increased power
handling for highs and mids, which equates to more lifelike sound from vocals, cymbals,
brass instruments and pianos.
Designed for the Elements
Their one-piece polymer basket is designed to stand the test of time, even after long
exposure to the sun and salt. Rubber surrounds offer superior edge protection and are
much more reliable than foam. And a grille-mounted tweeter allows the front of the woofer
cone to be sealed, protecting the motor structure from sea spray.
Individually Voiced
For most brands, off-the-shelf speakers and a cursory approval of frequency response
curves are good enough. That’s not the case with JBL. We don’t only listen to our speakers
against the competition — we voice them against each other to ensure each line has the
consistent JBL sound signature that’s known and sought out by those who care about their
audio. This is just part of an extensive development process undertaken by some of the
best transducer engineers in the world to provide the finest listening experience at any
price point.
OEM-Level Reliability Testing
JBL tests every speaker design to rigid specifications, subjecting them to extreme conditions
that would break lesser speakers — this is ideal for equipment that will be heavily driven
in the elements. We freeze them, bake them, shake them, blast them with ultraviolet light
and drive them at full power for days to make sure your audio investment lasts for years.
What’s in the box:
1 pair of speakers
Speaker wire
Stainless steel mounting hardware
Owner’s Manual
HARMAN International Industries, Incorporated
8500 Balboa Boulevard, Northridge, CA 91329 USA
www.jbl.com
Product specifications:
MS6510
Type: 6" Dual Cone
Peak power handling: 150W
Power handling, continuous average: 50W
Frequency response: 18kHz
Nominal impedance: 4 ohms
Sensitivity (2.83V/m): 90db
MS6520
Type: 6" Coaxial
Peak power handling: 180W
Power handling, continuous average: 60W
Frequency response: 50Hz – 20kHz
Nominal impedance: 4 ohms
Sensitivity (2.83V/m): 90db
MS9520
Type: 6" x 9" coaxial
Peak power handling: 300W
Power handling, continuous average: 100W
Frequency response: 37Hz – 20kHz
Nominal impedance: 4 ohms
Sensitivity (2.83V/m): 92db
© 2014 HARMAN International Industries, Incorporated. All rights reserved. JBL is a trademark
of HARMAN International Industries, Incorporated, registered in the United States and/or other
countries. “Hear the truth” logo is a trademark of HARMAN International Industries, Incorporated.
Features, specications and appearance are subject to change without notice.
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