Diagram

ManualsBrandsEminence Manuals12Loudspeaker

File: LAB12.SealedCarSubWooferbb6.bb6

LAB12 Small Sealed Automotive Subwoofer Cabinet

By McJerry, Eminence Speaker LLC

Limit to 300 Watts. Typical cabin gain will give effective F3 below 30 Hz.

Box Properties

--Description--

Name:

Type: Closed Box

Shape: Prism, square

--Box Parameters--

Vb = 0.653 cu.ft

V(total) = 0.806 cu.ft

Qtc = 0.787

QL = 20

F3 = 52.89 Hz

Fill = heavy

Driver Properties

--Description--

Name: LAB 12

Type: Standard one-way driver

Company: Eminence Speaker LLC

Comment: Revised NOV 2005

Piston: Kevlar-reinforced cone.

Suspension: Foam surround.

Dust Cap: Dual inverted dust caps

Frame: Diecast aluminum basket.

Voice Coil: 2.5 inch (63.5 mm) copper

Magnet: Double-stacked 80 oz ferrite

--Configuration--

No. of Drivers = 1

--Driver Parameters--

Fs = 22 Hz

Qms = 13.32

Vas = 125.2 liters

Xmax = 13 mm

Sd = 506.7 sq.cm

Qes = 0.39

Re = 4.29 ohms

Le = 1.48 mH

Z = 6 ohms

Pe = 400 watts

Normalized Amplitude Response (dB-SPL/Hz)

Eminence Designer

-6

-12

-18

-24

-30

-36

5 Hz 10 50 100 500 1 K 5 K 10 K 20 K

Custom Amplitude Response (dB-SPL/Hz at 1 m) with 300 watts

Eminence Designer

120

114

108

102

5 Hz 10 50 100 500 1 K 5 K 10 K 20 K

Maximum Acoustic Power (dB-SPL/Hz at 1 m)

Eminence Designer

119

113

107

101

5 Hz 10 50 100 500 1 K 5 K 10 K 20 K

**The LAB12 was specifically designed for use in a horn loaded enclosure engineered by participants of the Live Audio Board at

http://www.prosoundweb.com/lsp/. There are five points (listed on the last page) you must consider when using these drivers, exclusively in the Live Audio

Board design. The woofer is also suitable for more conventional applications, such as the designs on these pages, where extended Xmax is desired.

Summary of content (8 pages)

PAGE 1
**The LAB12 was specifically designed for use in a horn loaded enclosure engineered by participants of the Live Audio Board at http://www.prosoundweb.com/lsp/. There are five points (listed on the last page) you must consider when using these drivers, exclusively in the Live Audio Board design. The woofer is also suitable for more conventional applications, such as the designs on these pages, where extended Xmax is desired.
PAGE 2
Page Two -- LAB12.SealedCarSubWooferbb6.
PAGE 3
LAB12 Larger Vented Subwoofer Cabinet By McJerry, Eminence Speaker LLC Displacement Limited to 200 Watts; F3 of 25 Hz. Must use a steep high pass filter set to 20 Hz to protect woofer from overexcursion. Box Properties --Description-Name: Type: Vented Box Shape: Prism, square --Box Parameters-Vb = 3.2 cu.ft V(total) = 3.509 cu.ft Fb = 25 Hz QL = 7 F3 = 25.24 Hz Fill = minimal --Vents-No. of Vents = 2 Vent shape = round Vent ends = one flush Dv = 3 in Lv = 16.
PAGE 4
Page Two -- LAB12LargerVentedSubCabinetLowBoy.
PAGE 5
LAB12 Med Vented Subwoofer Cabinet By McJerry, Eminence Speaker LLC Thermally Limited to 400 Watts; F3 of 33Hz. Use a steep high pass filter set to 30 Hz to protect woofer from overexcursion. Box Properties --Description-Name: Type: Vented Box Shape: Cube --Box Parameters-Vb = 2.25 cu.ft V(total) = 2.529 cu.ft Fb = 38 Hz QL = 7 F3 = 33.02 Hz Fill = minimal --Vents-No. of Vents = 2 Vent shape = round Vent ends = one flush Dv = 3.5 in Lv = 12.
PAGE 6
Page Two -- LAB12MedVentedSubCabinet.
PAGE 7
LAB12 Small Sub or Bass Guitar Extreme Bottom End By McJerry, Eminence Speaker LLC Thermally Limited to 400 Watts; F3 of 40 Hz. Use a steep high pass filter set to 30 Hz to protect woofer from overexcursion. Box Properties --Description-Name: Type: Vented Box Shape: Prism, square --Box Parameters-Vb = 1.4 cu.ft V(total) = 1.66 cu.ft Fb = 44 Hz QL = 7 F3 = 39.32 Hz Fill = minimal --Vents-No. of Vents = 2 Vent shape = round Vent ends = one flush Dv = 3 in Lv = 11.
PAGE 8
Page Two -- LAB12SmallVentedSubCabinet.bb6 Cone Displacement (mm/Hz) with 400 watts Eminence Designer mm 16 14 12 10 8 6 4 2 5 Hz 10 50 100 500 1K Vent Air Velocity (m/sec/Hz) with 400 watts 5K 10 K 20 K Eminence Designer m/s 48 42 36 30 24 18 12 6 5 Hz 10 50 100 500 1K System Impedance (ohms/Hz) 5K 10 K 20 K Eminence Designer ohms 80 70 60 50 40 30 20 10 5 Hz 10 50 100 500 1K 5K 10 K 20 K The LABHorn design has five points that you must consider when using them: 1.