DB Drive Speed Series Subwoofer SW12D2 User Manual

Please Note: Our suggested box volumes are given as internal air requirements
Sealed Enclosure
Box Volume 1.25cu.ft.
Ported Enclosure
Box Volume 1.5 cu.ft.
Box Tuning 38Hz
Port Diameter 4in.
Port Length 16in.
* Box is given as internal air volume including driver displacement.
* Box is given as internal air volume including port and driver displacement.
Recommended Enclosures
SW12D2 / SW12D4
12” Subwoofer
SW12D2 / SW12D4
Installation Instructions / Owner’s Manual
DB Research L.L.P.
302 Hanmore Industrial Parkway // Harlingen, TX 78550
ph: 877.787.0101 // fx: 956.421.4513 // www.dbdrive.net
®
Chasis Width 12.25in. / 31.11 cm
Mounting Depth 5.37in. / 13.63 cm
Overall Height 5.88in. / 14.90 cm
Cutout Diameter 10.87in. / 27.60 cm

DB Drive Speed Series Subwoofer SW12D2 Specifications

General

Type	Subwoofer
Size	12 inches
Impedance	Dual 2 Ohm
Frequency Response	25 Hz - 500 Hz
Voice Coil	2.5 inches
Power Handling (Peak)	1200 Watts

Summary

Recommended Enclosures

Sealed Enclosure

Box volume and air requirements for sealed enclosures, including driver displacement.

Ported Enclosure

Box volume, tuning frequency, and port details for ported enclosures.

Product Specifications

Free Air Resonance (FS)

Speaker's resonant frequency in open air, crucial for enclosure design.

Total Q of driver (Qts)

Driver's efficiency including all electrical and mechanical resistances.

Driver's compliance (VAS)

Equivalent air volume representing the driver's suspension stiffness.

Linear displacement (Xmax)

Maximum cone excursion from neutral position before distortion.

Driver's sensitivity (Sens)

Sound pressure level output at 1 meter for a given input power.

Calculating Enclosures

Calculating External Volume

Method to measure and convert external box dimensions to cubic feet.

Calculating Internal Volume

Method to calculate net internal box volume by subtracting wood thickness.