United Kingdom



25cm Component Subwoofer

Key Features

250mm Injection P.P.Cone Woofer
1000W Maximum Input Power
Push Terminals
Removable and Reversible Gasket
Long Stroke Design

Speaker Features

Speaker TypeSubwoofer
Peak Input Power1000W
Rated Input Power300W
Speaker Size250mm
Speaker Cone DesignStainless Coated Cone
Magnet TypeFerrit
TerminalsSilver-plated Push Type
Magnet CoverNo
Gasket Installationtwo-sided
Installation CapabillitySealed/ Ported

Speaker/woofer Specifications

Peak Input Power1000W
Maximum Input Power600W
Rated Input Power300W
Woofer Cone materialInjection P.P. Cone
Speaker BasketSteel
Speaker SurroundHigh-Roll Rubber
Spider TypeSuper Linear Spider
Frequency Response30Hz ~ 1000Hz
Subwoofer Impedance4Ω x 1
Dimensions (W x H x D)275 x 275 x 164.7mm
Mounting Depth142.7mm
Mouting Hole Diameter Ø230mm
Speaker Weight4100gr
Gross Weight5000gr
Weight of Magnet1230gr

Subwoofer Parameters

Nominal impedance (Z)4Ω
DC resistance (Re)4
Resonant frequency (FSO)60Hz
Mechanical Q factor (QMS)8.57
Electrical Q factor (QES)0.932
Total Q factor (QTS)0.84
Voice coil inductance (LBM)2.8mH
Voice coil diameter (d)48mm
Force factor (BL)13.9T/m
Peak excursion Xmax6.9mm
Moving mass (MMS)122.9gr.
Volume accoustic compliance (VAS)9.384liter
Piston Area (SD)0.035m²
Sealed box volume28.3liter
Sealed Box Dimensions330 x 390 x 325mm ( 21mm thick MDF)(WxHxD)
Vented box volume35.4liter
Vented Box Dimensions340 x 455 x 330mm ( 21mm thick MDF)(WxHxD)
Vented box port diameter/lengthØ 76mm / 178mm


Screws (Parker-type)Ø 4 x 35mm, 8 pieces
Gasket1 piece(s)