Key Features
| 250mm Injection P.P.Cone Woofer | 
| 700W Maximum Input Power | 
| Silver Plated Terminals | 
| High-roll Urethane Surround | 
Speaker Features
| Speaker Type | Subwoofer | 
| Peak Input Power | 700W | 
| Rated Input Power | 175W | 
| Speaker Size | 250mm | 
| Magnet Type | Ferrit | 
| Terminals | Silver PLated Screw / slide type | 
| Magnet Cover | No | 
| Gasket Installation | one-way (Fixed) | 
| Installation Capabillity | Sealed/ Ported | 
Speaker/woofer Specifications
| Peak Input Power | 700W | 
| Maximum Input Power | 350W | 
| Rated Input Power | 175W | 
| Woofer Cone material | Injection P.P. Cone | 
| Speaker Basket | Steel | 
| Weight of Magnet | 748gr | 
| Speaker Surround | Urethane | 
| Sensitivity | 90dB/W/m | 
| Frequency Response | 35Hz ~ 1000Hz | 
| Subwoofer Impedance | 4Ω x 1 | 
| Dimensions (W x H x D) | 276 x 276 x 141mm | 
| Mouting Hole Diameter Ø | 230mm | 
| Mounting Depth | 120.8mm | 
| Speaker Weight | 3010gr | 
| Gross Weight | 3800gr | 
Subwoofer Parameters
| Nominal impedance (Z) | 4Ω | 
| DC resistance (Re) | 3.7Ω | 
| Resonant frequency (FSO) | 34Hz | 
| Mechanical Q factor (QMS) | 9.36 | 
| Electrical Q factor (QES) | 0.517 | 
| Total Q factor (QTS) | 0.49 | 
| Voice coil inductance (LBM) | 2mH | 
| Voice coil diameter (d) | 50mm | 
| Force factor (BL) | 13.4T/m | 
| Peak excursion Xmax | 4mm | 
| Moving mass (MMS) | 109.7gr. | 
| Volume accoustic compliance (VAS) | 36.6liter | 
| Piston Area (SD) | 0.035m² | 
| Displacement | 2294cc | 
| Sealed box volume | 28.3liter | 
| Sealed Box Dimensions | 330 x 390 x 325mm ( 21mm thick MDF)(WxHxD) | 
| Vented box volume | 35.4liter | 
| Vented Box Dimensions | 340 x 455 x 330mm ( 21mm thick MDF)(WxHxD) | 
| Vented box port diameter/length | Ø 76mm / 178mm | 
Accessories
| Screws (Parker-type) | Ø 4 x 25mm, 8 pieces | 



 
							