Comparison Alpine SWR-8D4 vs Alpine SWR-8D2

Clear Table
Add to comparison
	Alpine SWR-8D4	Alpine SWR-8D2
	$249.95 Compare prices 1	from $110.40 up to $132.80 Outdated Product
all specs only differences
TOP sellers	Amazon.com $250.00 Buy in shop	Find prices on Amazon.com Find prices on eBay.com
Application area	car	car
Design	without body	without body
Type	passive	passive
Size	8" (20 cm)	8" (20 cm)
Tech specs
Rated power	350 W	350 W
Max. power	1000 W /Peak/	1000 W /Peak/
Frequency range	30 – 200 Hz	30 – 200 Hz
Sensitivity	88 dB	88 dB
Dual voice coil
Impedance	4 ohm /single coil/	2 ohm /single coil/
Resonant frequency	36 Hz	36 Hz
General
Diffuser material	pulp / paper	pulp / paper
Woofer Diameter	200 mm	200 mm
Woofer depth	115 mm	115 mm
Added to E-Catalog	march 2014	march 2014

Impedance

The electrical resistance of a subwoofer when a signal is applied to it. This parameter is important primarily for selecting a subwoofer-amplifier pair: at a lower impedance than that of the amplifier, the subwoofer will distort the sound, at a higher impedance the sound will be too quiet.

For dual voice coil models (see above), the impedance is specified for one of the voice coils.