Granite-10D Design
Granite-52 Design
Specifications
ROCK-on Manual 8
Earthquake Sound Corp. | (800) 576-7944 | www.earthquakesound.com
Frequency
Response (±3dB)
50Hz-21kHz
30Hz-100Hz
Recommended
Amplifier Power
40-200 Watts
20-400 Watts
Nominal Impedance
Sensitivity(1W@1M)
93dB
92dB
Woofer
5 1/4”
(133mm)
10” (254mm)
Two 2.5” diameter voice coils
Tweeter
½” (13mm)
Mylar
N/A
Dimensions
(HxWxD)
8 1/2” (216mm)
8 1/2” (216mm)
9” (229mm)
14” (356mm)
18 1/2” (470mm)
21” (546mm)
Finish
Granite rock
Granite rock
Enclosure
15mm epoxy resin
15mm epoxy resin
Granite-10D
Granite-52
• 10” long excursion dual coil driver
• 2.5” diameter voice coil with 1.5” winding height
Granite-10D is a dual voice coil long excursion subwoofer. It has a massive motor that is unconventional in the
outdoor rock speaker market. The voice coil has a whopping 2.5” diameter and 1.5” winding height. The
overall excursion is over 2” peak to peak. Due to its voice coil winding height, the Granite-10D produces more
sound pressure level, SPL, while using less current from your amplifier.
Conventional rock speakers are totally sealed and will heat up to a temperature that exceeds 180 degrees. So
as soon as you turn on the music, the rock speaker only gets hotter. Not the Granite-10D.
Granite-10D has a clever ported design that allows the subwoofer to release the hot air. This port is a tube that
has an opening in the lower back side but extends upward inside the box to prevent moisture and water from
being trapped inside. In addition to keeping the subwoofer cool, this port adds 3dB of bass. 3dB is equal to half
the volume.
Like the Granite-52, the Granite-10D also has a poly propylene injection molded cone with a butyl rubber
surround.
1 Year Limited Warranty Information
ROCK-on Manual 9
Specifications are subject to change without notice.
It Is Recommended That You Place Your Serial Number Here For Reference
ROCK-on Granite-52 and Granite-10D one (1) year limited warranty:
Earthquake warrants the original purchaser that the speaker or amplifier (product) is free from defects in material and
workmanship, under normal and proper use, for a period of one (1) year from the date of purchase (as shown on the
original bill of sale with serial number affixed/written on it). The one (1) year warranty period is valid only if the product is
properly installed by an Earthquake authorized party, and the warranty registration card is properly filled out and sent to
Earthquake Sound Corporation.
If the product is installed by a non-authorized dealer, a thirty (30) day warranty
period applies.
(A) One (1) year limited warranty guidelines: (If installed by an authorized Earthquake dealer)
First year: Earthquake pays for labor, parts, and ground freight
(only in US mainland)
back to customer.
(B) Warning:
-
Products (sent for repair) that are tested by Earthquake technicians and deemed to have no problem, will not be
covered by the limited warranty. Customer will be charged a minimum of one (1) hour of labor (ongoing rates) plus
shipping charges back to customer.
-
Each product sent for repair must be packaged in its original packaging. Otherwise,
there will be repackaging
charge in addition to labor, parts and shipping charges.
© Earthquake agrees to repair or replace - at our option - all such defective products/parts subject to the following
provisions:
-
Defective products/parts have not been altered or repaired by other than an Earthquake factory approved
technician.
-
Products/parts are not subjected to negligence, misuse, improper use, or accident, damaged by improper line
voltage, used with incompatible products, or have its serial number or any part of it altered, defaced or removed,
or have been used in any way that is contrary to Earthquake's written instructions.
(D) Warranty Limitations:
Earthquake warranty does not cover products that have been modified or abused. Including but not limited to the
following
-
Damages to speaker cabinet and cabinet finish due to misuse, abuse, or use of improper use of cleaning
materials/methods.
-
Bent speaker frame, broken speaker connectors, holes in speaker cone, surround & dust cap, burnt speaker
voice coil.
-
Fading, deterioration of speaker components & finish due to improper exposure to elements.
-
Bent amplifier casing, damaged finish on the casing due to abuse, misuse, or improper use of cleaning material.
-
Burnt tracers on PCB.
-
Product/part damaged due to poor packaging or abusive shipping conditions.
-
Subsequent damage to other products.
A warranty claim will not be valid if the warranty registration card is not properly filled & returned to Earthquake with a copy
of the purchase receipt.
(E) Service Request:
To receive product(s) service, contact Earthquake service department at (510) 732-1000 and request an RMA
number (Return Material Authorization), items shipped without a valid RMA number will be refused. Make sure you
provide us with your complete/correct shipping address, a valid phone number, and a brief description of the problem you
are experiencing with the product. In most cases, our technicians might be able to resolve the problem over the phone,
thus eliminating the need to ship the product.
(F) Shipping Instructions:
Product(s) must be packaged in its original protective box(es) to minimize transport damage and avoid
repackaging charges. Shipper claims regarding items damaged in transit must be presented to carrier. Earthquake
Sound Corporation reserves the right to refuse products that are improperly packaged. A copy of the purchase receipt
must accompany product returned for service. We encourage you to include with the package a written description of the
problem. Ship product to: Earthquake Sound Corp. 2727 Mc Cone Avenue, Hayward, CA 94545. Ph (510) 732-1000. You
are responsible for the cost of shipping the product to Earthquake Sound Corporation.
(G) Disputes Resolution:
All disputes - between clients and Earthquake Sound Corporation - resulting from the one (1) year limited
warranty policy must be resolved according to the laws & regulations of the county of Alameda -California.
• 5 1/4” woofer with polycone with butyl rubber surround
• ½” Mylar tweeter
Granite-52 is a pair of left and right speakers with an unconventional coaxial design. The tweeter is mounted
on the same shaft of the speaker and in a typical speaker, the shaft requires a small opening for movement.
This allows moisture to pass the waterproof cone and get into the voice coil, damaging the speaker.
Earthquake engineers solved this problem by developing the world’s first rubber spider. This injection molded
rubber is shaped like a spider which is waterproof and extremely durable under weather conditions. The
spider acts as a soft suspension yet serves as a moisture barrier.
The Granite-52 speakers are 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 will get trapped
inside.
