Memphis Audio MB1224 12" 2 Ohm and 4 Ohm Subwoofer - 500 Watts RMS

Memphis Audio's MB1224 is a revolutionary new subwoofer that can truely switch between 2 ohm and 4 ohm. Switching between 2 and 4-ohm impedance is extremely easy because of the provided color-coded bridges and the wiring diagram printed above the terminals, and having the added flexibility means these subwoofers will be a part of your setup for years to come. This 12" subwoofer features a 2" 4-layer aluminum voice coil, woven tinsel leads, folded surround, and pumps out 500 watts RMS. See below for more features and specifications.

Features:

• Selectable Impedance Design: 2 Ohm or 4 Ohm
• Reinforced Double Stitched Rubber Surround
• Polypropylene Dust Cap
• 2" 4-Layer Aluminum Multi-Coil Voice Coil
• DVVC Dual Layer Vented Voice Coil
• Folded Surround for Max Excursion with Max Surface Area
• Ultra-Light Aluminum Voice Coil Increased Sensitivity and Output
• Woven Tinsel Leads

Specifications:

• DCR: 1.94 Ohm or 3.7 Ohm
• Voice Coil Diameter: 2"
• RMS Power: 500 Watts
• Max Power: 1000 Watts
• Magnet Weight: 60 Ounces
• Magnet Diameter: 5.71"
• Mounting Depth: 5.43"
• Cutout Diameter: 11.06"
• Frame Outside Diameter: 12.24"
• Resonant Frequency (fs): 33 HZ
• Mechanical Q (2 Ohm/4 Ohm): 5.30/5.22
• Electrical Q (2 Ohm/4 Ohm): 0.83/0.69
• Total Q (2 Ohm/4 Ohm): 0.72/0.61
• Sensitivity (2 Ohm/4 Ohm): 86.8dB/87.5dB
• Xmax Linear: 0.45"
• Xmax Mechanical: 1"
• Displacement: 0.16 Cf.
• Air Volume of Suspension: 2.39 Cf.
• Moving Mass: 151.75g
• Suspension Compliance (2 Ohm/4 Ohm): 0.147/0.149
• Effective Piston Area: 572.56 SqCM
• Motor Strength (2 Ohm/4 Ohm): 8.66/13

Enclosure Recommendations:

• Single Sub Sealed: 1.25 Cf. 
• Dual Subs Sealed: 2.25 Cf.
• Single Sub Vented: 2.4 Cf.
• Port Dimensions: 4" x 4" x 19" L
• Tuning Frequency: 36 Hz
• Dual Sub Vented: 4.5 Cf.
• Port Dimensions: 6" x 6" x 16" L
• Tuning Frequency: 36Hz

This listing is for one (1) Memphis MB1224 subwoofer.

Memphis Audio MB1224 12" 2 Ohm and 4 Ohm Subwoofer - 500 Watts RMS

Memphis Audio's MB1224 is a revolutionary new subwoofer that can truely switch between 2 ohm and 4 ohm. Switching between 2 and 4-ohm impedance is extremely easy because of the provided color-coded bridges and the wiring diagram printed above the terminals, and having the added flexibility means these subwoofers will be a part of your setup for years to come. This 12" subwoofer features a 2" 4-layer aluminum voice coil, woven tinsel leads, folded surround, and pumps out 500 watts RMS. See below for more features and specifications.

Features:

• Selectable Impedance Design: 2 Ohm or 4 Ohm
• Reinforced Double Stitched Rubber Surround
• Polypropylene Dust Cap
• 2" 4-Layer Aluminum Multi-Coil Voice Coil
• DVVC Dual Layer Vented Voice Coil
• Folded Surround for Max Excursion with Max Surface Area
• Ultra-Light Aluminum Voice Coil Increased Sensitivity and Output
• Woven Tinsel Leads

Specifications:

• DCR: 1.94 Ohm or 3.7 Ohm
• Voice Coil Diameter: 2"
• RMS Power: 500 Watts
• Max Power: 1000 Watts
• Magnet Weight: 60 Ounces
• Magnet Diameter: 5.71"
• Mounting Depth: 5.43"
• Cutout Diameter: 11.06"
• Frame Outside Diameter: 12.24"
• Resonant Frequency (fs): 33 HZ
• Mechanical Q (2 Ohm/4 Ohm): 5.30/5.22
• Electrical Q (2 Ohm/4 Ohm): 0.83/0.69
• Total Q (2 Ohm/4 Ohm): 0.72/0.61
• Sensitivity (2 Ohm/4 Ohm): 86.8dB/87.5dB
• Xmax Linear: 0.45"
• Xmax Mechanical: 1"
• Displacement: 0.16 Cf.
• Air Volume of Suspension: 2.39 Cf.
• Moving Mass: 151.75g
• Suspension Compliance (2 Ohm/4 Ohm): 0.147/0.149
• Effective Piston Area: 572.56 SqCM
• Motor Strength (2 Ohm/4 Ohm): 8.66/13

Enclosure Recommendations:

• Single Sub Sealed: 1.25 Cf. 
• Dual Subs Sealed: 2.25 Cf.
• Single Sub Vented: 2.4 Cf.
• Port Dimensions: 4" x 4" x 19" L
• Tuning Frequency: 36 Hz
• Dual Sub Vented: 4.5 Cf.
• Port Dimensions: 6" x 6" x 16" L
• Tuning Frequency: 36Hz

This listing is for one (1) Memphis MB1224 subwoofer.