Polk Audio DB1040 - Manual (Page 16)

17 M o r e I n f o @ w w w . p o l k a u d i o . c o m / c a r
ENGLISH
SUBWOOFER SPECIFICATIONS
db840 db1040 db1240
Thiele/Small Parameters
Type subwoofer subwoofer subwoofer
Driver Size 8" 10" 12"
(203.2mm) (254mm) (304.8mm)
Nominal Impedance 4 Ohm 4 Ohm 4 Ohm
Frequency Response 30-200Hz 28-200Hz 27-200Hz
Fs (Hz) 42Hz 35Hz 30Hz
Re 3.5 Ohm 3.5 Ohm 3.5 Ohm
Le 2.3mH 3.0mH 3.0mH
Qms 13.4 9.1 10.4
Qes 0.58 0.59 0.46
Qts 0.56 0.55 0.44
Vas 0.54ft 3 0.99ft 3 2.54ft 3
(15.4L) (28.3L) (71.85L)
Sd 35.65in 2 54.25in 2 80.6in 2
(230cm 2 ) (350cm 2 ) (520cm 2 )
Power Handling (Watts continuous) 180 Watts 270 Watts 360 Watts
Power Handling (Watts peak) 360 Watts 540 Watts 720 Watts
Sensitivity (SPL at 1 Watt / 1 meter) 85dB 86dB 88dB
Xmax (Linear) 0.24" 0.3" 0.3"
(6.1mm) (7.5mm) (7.5mm)
Voicecoil Diameter 1 1/2" 2" 2"
(38.1mm) (50.8mm) (50.8mm)
Mounting Depth Top Mount 4" 5 1/2" 6"
(100mm) (138.9mm) (152.4mm)
Mounting Depth Bottom Mount 4 9/16" 6 1/4" 6 3/4"
(115.8mm) (158.2mm) (171.4mm)
Mounting Diameter 7 1/16" 9 1/16" 11"
(179.4mm) (230.2mm) (279.4mm)
WARNING: LISTEN CAREFULLY
Polk Audio loudspeakers and subwoofers are capable of playing at extremely high volume levels, which
could cause serious or permanent hearing damage. Polk Audio, Inc. accepts no liability for hearing loss,
bodily injury or property damage resulting from the misuse of its products.
Keep these guidelines in mind and always use your own good judgment when controlling volume:
• You should limit prolonged exposure to volumes that exceed 85 decibels(dB).
• High volume in an automobile can hinder your ability to safely operate a vehicle.
• You are responsible for knowing the local laws governing acceptable mobile volume levels.
For more about safe volume levels, go to: www.polkaudio.com/education/article/SPL/
Or refer to the Occupational Health and Safety Administration (OSHA) guidelines at:
www.osha.gov/dts/osta/otm/noise/standards_more.html