Comparison Pioneer TS-W261S4 vs Pioneer TS-W261D4

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	Pioneer TS-W261S4	Pioneer TS-W261D4
	from $617.40 Outdated Product	from $77.56 Outdated Product
all specs only differences
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Application area	car	car
Design	without body	without body
Type	passive	passive
Size	10" (25 cm)	10" (25 cm)
Tech specs
Rated power	350 W	350 W
Max. power	1200 W /Peak/	1200 W /Peak/
Frequency range	20 – 125 Hz	20 – 125 Hz
Sensitivity	93 dB	93 dB
Dual voice coil
Impedance	4 ohm	4 ohm /single coil/
Resonant frequency	45 Hz	46 Hz
General
Diffuser material	polypropylene	polypropylene
Woofer Diameter	250 mm	250 mm
Woofer Depth	139 mm	139 mm
Weight	4.75 kg	4.8 kg
Added to E-Catalog	february 2015	february 2015

Dual voice coil

A dual voice coil is actually two separate voice coils on the same speaker. This allows you to connect two amplifiers to the subwoofer at once, thus providing high sound power.

Resonant frequency

The natural frequency of the cone in the subwoofer speaker, namely the frequency with which the cone will oscillate if the speaker is suspended freely in the air and a single impulse is transmitted to the cone (for example, by clicking on it with your finger). In subwoofers, this parameter determines, in particular, the lower limit of the frequency range (see above): at frequencies below the resonant sound power drops sharply. Accordingly, for deep rich bass, the resonant frequency should be as low as possible. This parameter is also used to calculate the size of the enclosure for the subwoofer.