EarthQuake BT-90S User Manual
Earthquake warrants the original purchaser that all Factory Sealed New Audio Products be free from defects
in material and workmanship, under normal and proper use, for a period of ninety (90) days from the date of
purchase (as shown on the original sales receipt with serial number affixed/written on it). The ninety (90) day
warranty period is valid only if an authorized Earthquake dealer properly installs the product, and the
warranty registration card is properly filled out and sent to Earthquake Sound Corporation. If a nonauthorized party installs the product, no warranty will be rewarded.
(A) Ninety (90) d limited warranty guidelines:
(B) Warning:
(C) Earthquake agrees to repair or replace - at our option - all such defective products/parts subject
to the following provisions:
(D) Warranty Limitations:
(E) Service Request:
(F) Shipping Instructions:
(G) Disputes Resolution:
ay
Earthquake pays for labor, parts, and ground freight (US mainland only) back to customer.
Products (sent for repair) that are tested by Earthquake technicians and deemed to have no
problem(s) will not be covered by the day limited warranty. Customer will be charged a
minimum of one (1) hour of labor (ongoing rates) plus shipping charges back to customer.
!
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.
Earthquake warranty does not cover products that have been modified or abused, including but not
limited to the following:
!
Damages to driver enclosure or part finish due to misuse, abuse, or use of improper use of cleaning
materials/methods.
!
Bent driver frame, broken speaker connectors, holes in surround or burnt speaker voice coil.
!
Fading, deterioration of speaker components & finish due to improper exposure to elements.
!
Subsequent damage to and from 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 sales invoice.
To receive product(s) service, contact Earthquake Sound’s service department at (510) 732-1000 and
request an RMA number (Return Material Authorization) as item(s) shipped without a valid RMA
number will be refused. Make sure you provide us with your complete and 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.
Product(s) must be packaged in its original protective box(es) to minimize transport damage. Shipper
claims regarding items damaged in transit must be presented to carrier. Earthquake Sound
Corporation reserves the right to refuse product that improperly packed. Original sales receipt
m us t a cc o mp a n y p r o du c t r et u rn e d fo r s er v i ce . S hi p p ro d uc t t o:
Earthquake Sound Corp. 2727 Mc Cone Avenue, Hayward, CA 94545.
You are responsible for the cost of shipping the product to Earthquake Sound Corporation.
All disputes - between clients and Earthquake Sound Corporation - resulting from the ninety (90) day
limited warranty policy must be resolved according to the laws & regulations of the county of
Alameda, California.
The Sound That Will Move You
BT90S
owner’s manual
Earthquake Sound Corporation
2727 McCone Avenue. Hayward, CA 94545. USA
US Toll Free: 1-800-576-7944. Tel: 510-732-1000. Fax: 510-732-1095
www.earthquakesound.com
ø4-3/16” (106mm)
4” (101mm)
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SPECIFICATIONS
Power Handling
Impedance
k
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Frequency Response
Sensitivity
4” (101mm)
Voice Coil Diameter
300 Watts
4 Ohm
3kHz - 20kHz
110 dB
1.75” (44mm)
ADDITIONAL INFORMATION
Crossover Capacitor
Magnet Weight
Frame Material
3.3µF/250V
45 oz.
Die Cast Aluminum
3-9/16” (90mm)
4-1/4” (107mm)
Specifications are subject to change without notice
3/8” (8.5mm)
2-7/16” (61.5mm)
MOUNTING INFORMATION
Cut Out Diameter
Mounting Diameter
Screw Hole Diameter
TECH SUPPORT
US Toll Free
E-mail
3-13/16” (96 mm)
4-3/16” (106 mm)
4 x 1/8” (4.5 mm)
1-800-576-7944
tech@earthquakesound.com
www.earthquakesound.com
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