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Specifications are subject to change without notice.
The Earthquake ROCK-
ON
outdoor speaker series is specifically designed to imitate rock appearance and easily
blend in with any outdoor environment, it comes in a Limestone or a Granite finish. Made with UV treated, weather-resistant
enclosure materials and durable epoxy resin construction, the ROCK-
ON
speakers can withstand the demanding outdoor
elements.
The Limestone-82 is a full range speaker that integrates an 8 inch woofer and a 1 inch tweeter. It serves as a left or
right speaker and has an amazing frequency response that is unmatched by any other rock speaker. It produces a crisp,
clean, and accurate audiophile sound. The Granite-52 is also a full range 5 1/4” coaxial that serves a a left or right speaker.
The ROCK-
ON
subwoofers (Limestone-10D or Granite-10D) feature high power crossovers that reduce distortions
and deliver pure sound that blends in with nature. These subwoofers bring true bass to your outdoor space, something that is
greatly needed in today’s rock speaker market. The port is “S” shaped that prevents water & moisture from getting trapped
inside the structure. We have tested and retested our ROCK-
ON
speakers to ensure they are up to par with our reputable line
of subs.
ROCK-
ON
outdoor speakers & subwoofers are the ideal choice for listening to music in the garden, by the pool, in the
yard, or on the patio. Together, they turn any backyard into an entertainment center.
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Earthquake Sound Corp. | (800) 576-7944 | www.earthquakesound.com
Features, Applications & More
Introduction & Specifications
Limestone-10D/Granite-10D Subwoofer
Limestone-82 Two-Way Speaker
The biggest two downfalls of outdoor speakers are moisture and heat. Earthquake engineers resolved this problem by
developing the world’s first rubber spider: the injection molded rubber is shaped like a spider which is waterproof and durable
under extreme weather conditions. The spider acts as a soft suspension yet serves as a moisture barrier.
The speaker is made with a waterproof poly propylene injection molded cone. The surround is made of butyl rubber
and the front of the shaft is totally sealed from the back so no water /moisture will get trapped inside. Its design prevents
moisture/water from getting inside the structure and damaging the unit.
H
W
D
H
W
D
Specifications
Frequency
Response (±3dB)
40Hz-21kHz
30Hz-100Hz
Recommended
Amplifier Power
20-250 Watts
20-400 Watts
Impedance (Ohm)
Sensitivity(1W@1M)
93dB
92dB
(dual voice coil)
Woofer
8”
(204mm)
10” (254mm)
Dual 2.5” diameter voice coil
Tweeter
1” (25mm)
Mylar
N/A
Dimensions
(HxWxD)
11 1/2” (293mm)
15” (381mm)
11 3/4” (299mm)
14” (356mm)
18 1/2” (470mm)
21” (534mm)
Finish
Limestone
Limestone Or Granite
Enclosure
15mm epoxy resin
15mm epoxy resin
Limestone-10D /
Granite-10D
Limestone-82
50Hz-21kHz
20-200 Watts
93dB
5 1/4”
(133mm)
½” (13mm)
Mylar
8 1/2” (216mm)
8 1/2” (216mm)
9” (229mm)
Granite rock
15mm epoxy resin
Granite-52
Granite-52 Coaxial Speaker
H
W
D
Self-Cooling Design
Conventional outdoor subwoofers are sealed designs (sealed enclosure), they tend to build up internal heat;
reaching temperature that exceeds 180 degrees. The side effects are devastating to the performance and life expectancy of
the unit: poor performance, short lived drivers.
Earthquake designers and engineers integrated a clever, very creative ported design (10D subwoofers) that allows
the subwoofer to release the hot air. This port is an “S” shaped tube that has an opening in the lower back side, it extends
upward inside the box thus preventing moisture and water from being trapped inside. In addition to keeping the subwoofer
cool, this port adds 3dB boost to bass response (3dB = half the volume).
Applications
Moisture & Water Resistant
•
• Rock-like appearance and finish to easily blend in with any outdoor environment
• Completely sealed speaker with Santoprene surrounds, poly cones and poly dust caps
• High power crossovers (for 10D subwoofers only)
UV treated and weather-resistant enclosure material
• 15mm Epoxy resin durable construction
“Built Like A Rock”, They Feature:
• Outdoor Home Theater
• Patio
• BBQ Area
• Pool
• Backyard and Front yard
• Garden
• Balcony
ROCK-
ON
Limestone Series
Limestone-82
Limestone-10D
ROCK-
ON
Granite Series
Granite-52
Granite-10D
