Eminence SIGMA PRO 18A-2 18" 8ohm Pro Audio Subwoofer Woofer Speaker 1300W 3" VC

Recommended for professional audio as a woofer in vented enclosures.

• speaker_size: 18
• Basket Diameter in: 18
• Basket Diameter_mm: 457
• Nominal Impedance: 8
• Power Rating_Watts: 650
• Power Rating_Music Program: 1300
• Resonance: 28
• Freq Range HZ: 41
• Freq Range kHZ: 2.4
• Sensitivity dB: 99
• Mag Wt_oz: 120
• Gap Height_in: 0.37
• Gap Height_mm: 9.5
• Voice Coil_Diam_in: 3
• Voice Coil Dia_mm: 76
• fs: 28
• Re: 6.29
• Le: 1.9
• Qms: 8.28
• Qes: 0.3
• Qts: 0.29
• Vas_ltr: 441.2
• Vas_cuft: 15.58
• VD: 695
• Cms: 0.24
• BL: 22.1
• Mms: 130
• EBP: 93
• Xmax: 6.1
• Sd: 1140
• Xlim: 18
• Enc Recom Sealed: N/A
• Rec Enc Volume_Sealed Min_liters:
• Rec Enc Volume_Sealed Max_liters:
• Rec Enc Volume_Sealed Min_cuft:
• Rec Enc Volume_Sealed Max_cuft:
• Enc Recom Vented: ACCEPTABLE
• Rec Enc Volume_Vented Min_liters: 93
• Rec Enc Volume_Vented Max_liters: 212
• Rec Enc Volume_Vented Min_cuft: 3.3
• Rec Enc Volume_Vented Max_cuft: 7.5
• Drive Volume Displaced_liters: 6.62
• Driver Volume Displaced_cuft: 0.234
• Overall_Diam_in: 18
• Overall_Diam_mm: 457.2
• Baffle Hole_Diam_in: 16.56
• Baffle Hole_Diam_mm: 420.6
• Front Seal Gask: Yes
• Rear Seal Gask: Yes
• Mounting Holes_Diam_in: 0.28
• Mounting Holes_Diam_mm: 7.1
• Mounting Holes_BCD_in: 17.25
• Mounting Holes_BCD_mm: 438.2
• Depth_in: 8.15
• Depth_mm: 207
• Net Weight_lbs: 24.5
• Net Weight_kg: 11.11
• Ship Weight_lbs: 28.1
• Ship Weight_kg: 12.75
• Coil Construction: Copper voice coil
• Coil Former: Polyimide former
• Magnet Comp: Ferrite magnet
• Core Details: Vented and extended core
• Basket Material: Die-cast aluminum basket
• Cone Composition: Paper cone
• Cone Edge Composition: Cloth cone edge
• Dust Cap Composition: Solid composition paper dust cap
• coloration:
• Genre:
• Model Group: Professional
• Subwoofer Usage: Yes
• Woofer Usage: Yes
• MidBass Usage:
• Midrange Usage:
• Bass Guitar:
• Closed box:
• Reflex Box: Yes
• Scoop Loading:
• Horn Loading: