The Sound That Will MOVE You...

Earthquake Sound Corporation, 1215 O’Brien Drive, Menlo Park, CA, 94025. Ph (650) 327-3003. Fax (650) 327-0179.

Wwww.earthquakesound.com

Magma

DB-R

DBX-R

Tremor-XR

SubwoofersInstallation

&Reference

Manual

A THANK YOU NOTE

Dear Valued Customer,

Congratulations! You are the proud owner of a high-quality Earthquake Subwoofer.

Earthquake Sound Corporation, located in Menlo Park California at the heart of the San Francisco Bay Area; specializes in manufacturing high end car audio products ranging from the smallest titanium tweeter to the world’s largest amplifier. In its dedication to excellence, Earthquake has maintained extensive programs in research and development to provide you with the highest quality mobile audio products.

This owners manual is designed to better acquaint you with Earthquake products and to guide you through all phases of system design and application. It is imperative that you read this manual in its entirety. Earthquake technicians and staff are looking forward to answering any questions you might have.

CAUTION: Earthquake Audio products are capable of producing over 140dB and are commonly used for high powered audio systems. Prolonged exposure to SPL levels of over 100dB will cause permanent haring damage. We at Earthquake ask you to please exercise extreme caution when using our product for competition or every day use.

SUBWOOFER SPECIFICATIONS

OHM-LAW How To Wire Your Subwoofers.

8"

15 5/16"14"

6 7

/8"

SEALED

V = 1.5 ft3

Q = 1.2

F3 = 47Hz

Fc = 63Hz

SEALED

V = 2.0 ft3

Q = 1.0

F3 = 44Hz

Fc = 57Hz

SEALED

V = 2.5 ft3

Q = 0.9

F3 = 42Hz

Fc = 53Hz

SPL LOW BASS

V = 1.5 ft3

FB = optimum

using SLAPS-15

passive radiator

V = 2.5 ft3

FB = optimum

using SLAPS-15

passive radiator

SPL NORMAL LOW BASS

SLAPSTUNED

SLAPSTUNED

6 3/8”

12 1/2”11 1/8”

5 7

/8”

SEALED

V = 0.8 ft3

Q = 0.81

F3 = 42Hz

Fc = 48Hz

SEALED

V = 1.0 ft3

Q = 0.76

F3 = 42Hz

Fc = 44Hz

SEALED

V = 1.2 ft3

Q = 0.7

F3 = 41Hz

Fc = 42Hz

SLAPS

V = 1.1 ft3

FB = optimum

using SLAPS-12

passive radiator

TUNEDTUNED

V = 1.4 ft3

FB = optimum

using SLAPS-12

passive radiator

SPL NORMAL LOW BASS

SPL LOW BASS

SLAPS

16.5"

14

"

19" 16"

PO

RT

MAGMA12

#1Bass Heads

3"

22"

18

"

23" 16.5"

PO

RT

MAGMA15

#1

Bass Heads

6"

MAGMA12 MAGMA15

#1 in Sound Quality, #1 in SPL...

“In sound quality and low frequency extension, the Earthquake MAGMAs excel leaving all other woofers behind” May 1999 CA&E. “With nearly 22mm of linear excursion (four times longer than other sub), and a hefty 3” 4-layer dual voice coil; the MAGMAs make sealed box bass an octave lower than any other woofer.” May 1999 CA&E.

MAGMA-Pro www.earthquakesound.com

Specifications are subject to change without notice. Dimensions shown are external Dimensions using 3/4" MDF.

VB = 0.7 ft3FB = 45HzPD = 3”PL = 8.5”

#1 “SPL”Ported Box

VB = 1.25 ft3FB = 35HzPD = 3”PL = 10”

#1 Low BassPorted Box

VB = .75Q = .85F3 = 47HzFc = 56Hz

#2 Low Basssealed Box

VB = 1.0 ft3FB = 55HzPD = 4”PL = 4”

VB = .8 ft3Q = .87F3 = 55HzFc = 38Hz

Band Pass4TH ORDER

VB = .75 ft3FB = 70HzPD = 4”PL = 8”

VB = 2.8 ft3FB = 30HzPD = 4”PL = 12”

Band Pass7TH ORDER

VB = 1.0 ft3FB = 45HzPD = 3”PL = 7”

#1 “SPL”Ported Box

VB = 1.75 ft3FB = 40HzPD = 4”PL = 10”

#1 Low BassPorted Box

VB = 0.9 ft3Q = 1.3F3 = 53HzFc = 74Hz

#2 “SPL”Sealed Box

VB = 1.7 ft3Q = .9F3 = 45HzFc = 57Hz

#2 Low BassSealed Box

VB = 1.4 ft3FB = 60HzPD = 5”PL = 7”

VB = 1.8 ft3Q = .95F3 = 56HzFc = 35Hz

Band Pass4TH ORDER

VB = 2.5 ft3FB = 45HzPD = 4”PL = 5”

#1 “SPL”Ported Box

VB = 4.0 ft3FB = 35HzPD = 4”PL = 4”

#1 Low BassPorted Box

VB = 3.0 ft3Q = .9F3 = 45HzFc = 54Hz

#2 Low BassSealed Box

VB = 1.5 ft3Q = 1.2F3 = 55HzFc = 76Hz

#2 “SPL”Sealed Box

VB = 3.0 ft3FB = 55HzTwo ports at4” x 4” each

VB = 3.0 ft3Q = .9FO = 55HzFc = 34Hz

Band Pass4TH ORDER

5 ½”

10 1/4” 9 3/8”

4 1

/4”

4 ¾

“DBR-10

5 ½”

12 3/8” 11”

5 ½

”

5 ¾

“

DBR-12

6 1/4”

15 1/4” 14”

6 1

/4”

6 3

/4”

DBR-15

DB-Street Pro www.earthquakesound.com

Specifications are subject to change without notice. Dimensions shown are external Dimensions using 3/4" MDF.

12

"

15"

15 1/2" 11"

PO

RT

(2"

x10.

5"x1

1")

Inte

rnal

dim

ensi

ons

DBX10D

#1Bass head design for competition

(External Dimensions using 3/4" MDF)

6 3/8”

10 5/8” 9 3/8”

51

/4”

6”

DBXR-10D & DBXR-101

0"

11 1/4 "

DBX8D

10"#3Sealed design for tight bass

11

"

15 "

DBX8D

Port

3" diameter 7" long

14"#2Port tuned design for deep bass

15 1/2"13"

PO

RT

(1"

x9.5

"x13

")

Inte

rnal

dim

ensi

ons

DBX8D

14"

11

"

#1Bass head design for competition

5 1/2”

8”7 1/4”

4”

4 3

/4”

DBXR-8D

(External Dimensions using 3/4" MDF)

16"

12

"

11 "

Port

4" diameter 8 1/2" long

DBX10D

#2Port tuned design for deep bass

12"

12

"

11 1/4 "

DBX10D

#3Sealed design for tight bass

DB-Xtreme www.earthquakesound.com

Specifications are subject to change without notice. Dimensions shown are external Dimensions using 3/4" MDF.

6 3/8”

12 5/8” 11 1/8”

5 6

/8”

6 5

/8”

7 3/8”

15 5/8” 14”

7” 8 ”

VB = 2 1/2 ft3FB = optimized withSLAPS-12 passive

Drone Tuned Box

#1Passive tuned design for

16 1/2"

19"16"

DBX12D

PORT

(3"x

12.5

"x16

")In

tern

al d

imen

sions

#1Bass head design for competition

19"

14

"

DBX12D

#2 Port tuned design for deep bass

9"

DBX12D

DBXR-15DDBXR-12D & DBXR-12

13 1/2"

Inte

rnal

dim

ensio

nsPO

RT (2

"x12

.5"x

9")

14

"

14"

10 3/4 "

#3 Sealed design for tight bass

22"

23" 16 1/2"

Inte

rnal

dim

ensio

ns

#1Bass head design for competition

18

"

DBX15D

PORT

(6"x

16.5"

x16.5

")

VB = 2 1/2 ft3FB = optimized withSLAPS-15 passive

#1Passive tuned design for

Drone Tuned Box

23"

18

"

9"#2

PO

RT

(2

"x1

6.5

"x9

")

Inte

rna

l d

ime

ns

ion

s

DBX15D

#2Port tuned design for deep bass

9"

PORT

(2"x

16.5

"x9"

)In

tern

al d

imen

sions

DBX15D

12 1/2"

17"

15 "

#3Sealed design for tight bass

14

"

DBX12D 17

"

DBX15D DBX15D

DB-Xtreme www.earthquakesound.com

Specifications are subject to change without notice. Dimensions shown are external Dimensions using 3/4" MDF.

TremorX-8 TremorX-10

14"

11

"

15 1/2"13"

PO

RT

(1"

x9.5

"x13

")

Inte

rnal

dim

ensi

on

s

#1

11

"

Bass head design for competition

TremorX8

15"

12

"

15 1/2" 11"

PO

RT

(2"x

10.5

"x11

")

Inte

rnal

dim

ensi

on

s

12

"

#1 Bass head design for competition

TremorX10

5 3/4”

10 3/8”9”

5” 5 5

/8”

5 3/4”

8 1/2”7 1/4”

4 5

/8”

5”

14"

15 "

#2

Port

3" diameter 7" long

Port tuned design for deep bass

TremorX8

10"

10

"

11 1/4 "

#3 Sealed design for tight bass

TremorX8

16"

11 " #2

Port

4" diameter 8 1/2" long

#2Port tuned design for deep bass

TremorX10

12"

12

"

11 1/4 "

#3 Sealed design for tight bass

TremorX10

TREMOR-Xtreme www.earthquakesound.com

Specifications are subject to change without notice. Dimensions shown are external Dimensions using 3/4" MDF.

TremorX-12 15 ½” 13 3/4”

6 3

/8”

7 ”

22"

23" 16 1/2"

TremorX-15

PORT

(6"x1

6.5"x1

6.5")

Inter

nal d

imen

sions

#1Bass head design for competition

6 3/8”

12 3/8” 11”

5 1

/2”

16 1/2"

14

"

19" 16"

PORT

(3"x

12.5

"x16

")Int

ernal

dimen

sions

6 1

/8”

#1

#1

Bass head design for competition

TremorX12

6 1/2”

VB = 2 1/2 ft3FB = optimized withSLAPS-15 passive

Drone Tuned Box

23"

18

"

12 1/2" 9"

PORT

(2"x

16.5

"x9"

)Int

erna

l dim

ensio

ns

18

"

17"

17

"

15 "

#2 Port tuned design for deep bass

#3 Sealed design for tight bass

#1Passive tuned design fordeep bass small volume

TremorX15

TremorX15

TremorX15

VB = 2 1/2 ft3FB = optimized withSLAPS-12 passive

19"

14

"

13 1/2"9"

PORT

(2"x

12.5

"x9"

)Int

ernal

dimen

sions

14"

14

"

10 3/4 "

#2 Port tuned design for deep bass

#3 Sealed design for tight bass

Passive tuned design fordeep bass small volume

TremorX12

TremorX12

Drone Tuned Box

TREMOR-Xtreme www.earthquakesound.com

Specifications are subject to change without notice. Dimensions shown are external Dimensions using 3/4" MDF.