As an Amazon Associate, we earn from qualifying purchases. PRV Audio 21SW4000-NDY-4 21" Professional Neodymium Subwoofer 4 Ohm PRV Audio . 21SW4000-NDY-4 Gallery Attributes Brand name, Manufacturer name, Manufacturer, Attribute00PRV Audio Attribute01, MPN21SW4000-NDY-4 Attribute02, SKU294-2764 Attribute03, UPC799928735285 Attribute04Each Attribute05, Weight57.7 Attribute0621" Attribute0720.5 Attribute082000 Watts Attribute094000 Watts Attribute104? Attribute1135 to 1,800Hz Attribute1296dB 2.83V/1m Attribute136" Attribute1432.26Hz Attribute153.5? Attribute161.39mH Attribute1714 Attribute180.37 Attribute190.36 Attribute206.29ft? Attribute210.036mm/N Attribute2234.35T?m Attribute2318mm Attribute241870cm? Attribute25Treated Paper Attribute26Cloth Attribute27Copper Attribute28Fiberglass Attribute29Cast Aluminum Attribute30Neodymium Attribute3121.4" Attribute3219.4" Attribute339.84" Attribute348 Attribute353.5ft? Attribute3673Hz Attribute375ft? Attribute3841Hz AttributeKey00Brand AttributeKey01Model AttributeKey02Part Number AttributeKey03UPC AttributeKey04Unit of Measure AttributeKey05Weight AttributeKey06Nominal Diameter AttributeKey07Bolt Circle Diameter AttributeKey08Power Handling (RMS) AttributeKey09Power Handling (MAX) AttributeKey10Impedance AttributeKey11Frequency Response AttributeKey12Sensitivity AttributeKey13Voice Coil Diameter AttributeKey14Resonant Frequency (Fs) AttributeKey15DC Resistance (Re) AttributeKey16Voice Coil Inductance (Le) AttributeKey17Mechanical Q (Qms) AttributeKey18Electromagnetic Q (Qes) AttributeKey19Total Q (Qts) AttributeKey20Compliance Equivalent Volume (Vas) AttributeKey21Mechanical Compliance of Suspension (Cms) AttributeKey22BL Product (BL) AttributeKey23Maximum Linear Excursion (Xmax) AttributeKey24Surface Area of Cone (Sd) AttributeKey25Cone Material AttributeKey26Surround Material AttributeKey27Voice Coil Wire Material AttributeKey28Voice Coil Former AttributeKey29Basket / Frame Material AttributeKey30Magnet Material AttributeKey31, height_Attrib, width_AttribOverall Outside Diameter AttributeKey32Baffle Cutout Diameter AttributeKey33, length_AttribDepth AttributeKey34# Mounting Holes AttributeKey35Sealed Volume AttributeKey36Sealed F3 AttributeKey37Vented Volume AttributeKey38Vented F3 DimensionUnitinch Extra Product NamePRV Audio 21SW4000-NDY-4 21" Professional Neodymium Subwoofer 4 Ohm WeightUnitlbs depth, length9.84 diameter, height, width21.4 moq, multiple1 qtyInStock0 snippetPRV Audio 21SW4000-NDY-4 21" Professional Neodymium Subwoofer 4 Ohm. Part Number: 294-2764 by PRV Audio. Distributor offers SellerSKUMOQIn stockMultiplePrices parts-express.com294-276411