18
db: Incredible Sound, Affordable Price
SUBWOOFER SPECIFICATIONS
db840DVC db1040DVC db1240DVC
Thiele/Small Parameters
Type subwoofer subwoofer subwoofer
Driver Size 8" 10" 12"
(203.2mm) (254mm) (304.8mm)
Nominal Impedance dual 4 Ohm dual 4 Ohm dual 4 Ohm
Frequency Response 30-200Hz 28-200Hz 27-200Hz
Fs (Hz) 43Hz 35Hz 30Hz
Re 3.4 Ohm/coil 3.4 Ohm/coil 3.4 Ohm/coil
3.4 Ohm/bob. 3.4 Ohm/bob. 3.4 Ohm/bob.
Le 2.47mH 5.1mH 5.1mH
Qms 14.1 10.4 10.4
Qes 0.62 0.66 0.49
Qts 0.59 0.62 0.50
Vas 0.55ft
3
1.07ft
3
2.40ft
3
15.8L 30.29L 67.9L
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/series 86dB/series 88dB/series
Xmax (Linear) 0.24" 0.35" 0.35"
(6.1mm) (9.0mm) (9.0mm)
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)
Product Disposal- Certaininternational, national and/orlocal lawsand/or
regulations mayapply regardingthe disposal of thisproduct. Forfurther detailed
information, pleasecontact theretailer where youpurchased thisproduct or the
Polk AudioImporter/Distributor inyour country. Alisting ofPolk Audio Importer/
Distributors canbe foundon the PolkAudio websitewww.polkaudio.com or by
contacting PolkAudio at5601 Metro Drive,Baltimore, Maryland21215, USA—
Phone: +1410 358-3600.
