1. Home
    2. /
  2. Car Audio & Electronics
    3. /
  3. Car Subwoofers
    4. /
  4. 15" Car Subwoofers
    5. /
  5. Earthquake Sound SZ-15

Earthquake Sound SZ-15

15" Dual 4 Ohm Subzero Series Car Subwoofer

2
Earthquake Sound
Shop all Earthquake Sound
Product videos
highlight-star-icon

15" Dual 4 ohm Subzero Series Subwoofer • Paper Pressed Woofer Cone • Composite Foam Woofer Surround • 2500W MAX • 1250W RMS • Turbine Cooled Transducer Technology • PSP Terminal Block • 3.25" Aluminum Voice Coil Former • 89.7dB

Learn more about the sz15
Was $999.00 Details
Thanks , You Pay:

$969.99

 with warranty

Heads up

We confirm fitment and offer accessories for speakers. Please set your vehicle first if you would like to purchase more than one sz15.

Set your vehicle or Return to product page
Quantity
In Stock.
Brand new

Buy it now

×

Buy Now with Credit Card

No Credit Option

Flexible Lease Payments

Early Purchase Options

Quick Approval Decision

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, Available 24/7
Offered by Allstate

For over 22 years, we've been your X-Factor – the team dedicated to having the biggest impact on your shopping experience!

AwardWinning
Award-Winning Service
Shipping
FREE Shipping Orders $49+
60Days
60-Day Easy Returns
lowestPrice
Guaranteed Lowest Price
inHouseExpert
In-House Experts

Product Highlights

15" Dual 4 ohm Subzero Series Subwoofer • Paper Pressed Woofer Cone • Composite Foam Woofer Surround • 2500W MAX • 1250W RMS • Turbine Cooled Transducer Technology • PSP Terminal Block • 3.25" Aluminum Voice Coil Former • 89.7dB

Description

Earthquake Sound

Authorized dealer

Piercing Bass with Subzero Subwoofers

When its comes to high-quality subwoofers, it is the technologies and aesthetics that really set them apart from one another. Earthquake Sound's 15" SZ-15 Subzero series subwoofer has a look like no another woofer around. One look at this woofer and you know that it means business and that it was manufactured to stand the test of time. With 1250 watts RMS this Dual 4 ohm woofer will offer an unbelievable amount of bass, at a crisp, clean, and precise rate. Its Turbine Cooled Transducer technology offers unsurpassed heat dissipation control, while the Parallel Series Parallel terminal block allow stereo and mono impedance changes with a simple flip of the fuses, making installation easy, quick and efficient. Its massive 3.25" voice coil allows for an extreme amount of excursion making this woofer really hit hard. It is not very often that you can find, performance, longevity, reliability and aesthetics all in one subwoofer but this Subzero series subwoofers provides that and much more.


 
  • 15" Dual 4 ohm Subzero Series Subwoofer
  • Power Handling:
    • Peak: 2500 watts
    • RMS: 1250 watts
  • Impedance: Dual 4 ohm
  • Paper pressed composite woofer cone
  • Composite foam woofer surround
  • TCT (Turbine Cooled Transducer) Technology
  • PSP (Parallel Series Parallel) Terminal Block for easy switching of mono and stereo impedance changes
  • 3.25" Aluminum voice coil former
  • Sensitivity: 89.7 dB
  • Xmax: 31.75 mm
  • Mounting depth: 8-3/4"
  • Cutout dimensions: 14-1/2"
  • Manufactured in the United States
  • Authorized Internet Dealer
  • 5-year Manufacturer's warranty

Subwoofer Wiring Guide

Wiring Guide to Wire 1 Earthquake Sound SZ-15 Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Earthquake Sound SZ-15 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Earthquake Sound SZ-15 Subwoofers

Mono Amp

4 Channel Amp

Wiring Guide to Wire 4 Earthquake Sound SZ-15 Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Specifications & Details

Subwoofer Specifications
Series
Subzero Series
Subwoofer Size
15"
Peak Power Handling
2500 watts
RMS Power Handling
1250 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohms
Voice Coil Material
Voice Coil Diameter
3.25"
Sensitivity
89.7 dB
Xmax (millimeters)
31.75 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Pressed Paper Composite
Woofer Surround
Foam
Magnet weight
Magnet Type
Subwoofer Grille
No
Re-Cone Kit Available
No
CTA-2031 Compliant
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Sealed
Minimum Sealed Box Volume
2.65 cubic feet
Optimum Sealed Box Volume
Maximum Sealed Box Volume
2.65 cubic feet
Minimum Ported Box Volume
4.22 cubic feet
Optimum Ported Box Volume
Maximum Ported Box Volume
5.20 cubic feet
Top-Mount Depth (Mounting Depth)
8-3/4"
Cutout Diameter
14-1/2"
Shallow Mount Installation
No
Electromechanical Parameters
Free-Air Resonance (Fs)
24.46 Hz
Equivalent Compliance (Vas)
129.65 liters
Total Speaker Q Value (Qts)
0.3021
Electrical Q Value (Qes)
0.3021
Electrical Resistance of Voice Coil (Re)
7.80 ohms
Mechanical Q Value (Qms)
12.6551
Efficiency Bandwidth Product (EBP)
What is in the box?
Paperwork
WITB: Subwoofers
Other Accessory #1
Other Accessory #2
Other Accessory #3
Other Accessory #4
Other Accessory #5
Other Accessory #6
Warranty and Return Policy
Parts Warranty Duration
5 years
Labor Warranty Duration
5 years
Warranty Provider
Manufacturer

Item Details

Manufacturer:

Earthquake Sound

Model Number:

SZ-15

Weight:

52.00lbs

Internal SKU:

sz15

Internal Product ID:

38098

Product and How-to Videos

  • Earthquake Sound Subzero Car Subwoofers Review
  • Car Subwoofer Size Buying Guide | What Size of Sub Should I Get?

Customer Ratings & Reviews

Earthquake Sound SZ-15
2
Rate or review product
5 star
50%
4 star
50%
3 star
0%
2 star
0%
1 star
0%
Durability
5
Value
4
Features
5
Design
5
Usability
5
Sort by:
Loading...

Heard 2 of these

2 of these at a DB Drag show, I hopped in the car and was immediately amazed at how good these subwoofers sound, even traveling 30mm +. Great design, great sound.

By Tom on March 6, 2012

5

found this helpful.
Helpful? Report abuse

awesome!

Great sounding sub was amazed at how good it got hit the lows.

By Anonymous on June 10, 2019

3

found this helpful.
Helpful? Report abuse

Add-ons

164409
Six Function Digital Multimeter

Perfect addition to any toolbox

$6.99

64036
Gold Plated Dual Terminal Banana Plug Connector

Enables an expandable, secure connection accepting up to 8 gauge wire.

$6.99

Similar Products

Best selling similar products

small

NVX VCW154 Version 3 (VCW154v3)

• RMS Power: 1500 Watts
• 3” 4-Layer High Temperature Black Aluminum Voice coil
• Carbon Fiber Enhanced Non-Pressed Paper Cone
• Custom High Roll foam surround with black nylon stitching
• 202 oz. Triple stacked High Energy ferrite magnet
• Die Cast aluminum vented basket

(42)

$199.99

small

NVX VCW152 Version 3 (VCW152v3)

• RMS Power: 1500 Watts
• 3” 4-Layer High Temperature Black Aluminum Voice coil
• Carbon Fiber Enhanced Non-Pressed Paper Cone
• Custom High Roll foam surround with black nylon stitching
• 202 oz. Triple stacked High Energy ferrite magnet
• Die Cast aluminum vented basket

(30)

$199.99

small

Memphis MB1524

• Peak Power: 1000 watts
• RMS Power: 500 watts
• Coated Paper cone
• Reinforced double stitched Rubber surround
• Impedance: Dual 2 or 4 ohms
• Mount depth: 6.83"
• Sensitivity: 88.4 dB

$349.95

small

Kicker 50GOLD154

• Peak Power: 1600 watts
• RMS Power: 800 watts
• Santoprene Rubber Surround
• Impedance: Dual 4 ohms
• Mount depth: 7.93"
• Sensitivity: 89.7 dB
• Forced-Air Cooling feature

$349.99

small

DC Audio Level 4 15 m2.1 D2

• Peak Power: 2800W
• RMS Power: 1400W
• Dual 2 ohm Voice Coil
• Extremely Rigid Non-Pressed Paper Cone Assembly
• Multilayered Polymer Wide Roll Foam Surround

(5)

$524.99

Related Searches

› Earthquake Sound › Earthquake Sound SZ-15 Reviews › Earthquake Sound 15" Car Subwoofers › 15" Car Subwoofers under $1000
SZ-15 small

Item added to your cart.

Price: $969.99

Keep shopping Go to cart
Essential add-ons
20 Square Feet of Sound Dampening Material

NVX Sound dampening is thicker than competitors, eliminates rattles and gives you bigger bass!

20 Square Feet of Sound Dampening Material

$89.99

$59.99

Add to cart
Six Function Digital Multimeter

Perfect addition to any toolbox

Six Function Digital Multimeter

$14.99

$6.99

Add to cart
Gold Plated Dual Terminal Banana Plug Connector

Enables an expandable, secure connection accepting up to 8 gauge wire.

Gold Plated Dual Terminal Banana Plug Connector

$6.99

$6.99

Add to cart

Add vehicle

Save up to 10 different vehicles in your garage

2 | Make
3 | Model
Where to find vehicle info | Shop without vehicle

Select Additional Details for or Change Vehicle

Can't find your vehicle? Click here and we'll help.

Find products that fit

Find gear for your vehicle – fast.

2 | Make
3 | Model
Remove

Can't find your vehicle? Click here and we'll help.

Where to find vehicle info

< Go to Fitment

Didn't find your car?

Submit your details and we'll help!
Please enter the letters as they are shown in the image above. Letters are not case-sensitive.
< Back
Track order
Call our experts
Instagram Youtube