About: PRV Audio 8MR500-NDY-4 8" 250W RMS Neodymium Midrange Loudspeaker - 4 Ohm (Each) 

The PRV Audio Pro Audio Loudspeaker, 8MR500-NDY-4 Mid Range woofer offers outstanding durability and a smooth midrange response through 9kHz. This woofer is perfect for home Hi-Fi installs, including bookshelf, satellite, surround sound speakers and even studio monitors. It is a great option for three way cabinets requiring additional midrange support.

The high end neodymium magnet assembly was chosen to increase sensitivity and power handling. This neodymium is attached to a sturdy reinforced steel frame to ensure a solid support structure for long lasting play in most any environment. Its light weight of only 2.33 lbs helps keep your enclosures light and is a great use for car audio installers looking for high SPL midrange and upper midrange responses.

Product Highlights: 

• Nominal Impedance: 4 Ohms
• Rated AES Power Handling (RMS): 250 Watts
• Program Power: 500 Watts
• Sensitivity (1W/1m): 96 dB
• Voice Coil Diameter: 1.5″

Specifications:

• Nominal Diameter: 8" (203 mm)
• Nominal Impedance: 4 Ohms
• Rated AES Power Handling (RMS): 250 Watts 
• Program Power: 500 Watts
• Sensitivity: 96 dB
• Recommended Hi Pass X-Over: 160 Hz (12 dB/Octave)
• Frequency Response: 95-9000 Hz
• Voice Coil Diameter: 1.5" (38 mm)
• Voice Coil Wire: CCAW
• Voice Coil Winding Depth: 9.0 mm
• Former Material: Kapton
• Magnetic Gap Depth 6.0 mm
• Frame Material: Stamped Steel
• Sold Individually 

Thiele-Small Parameters:

• Equivalent Volume (Vas): 14.37 l
• Excursion (Xmax): 3.00 mm
• Resonance Frequency (Fs): 95.12 Hz
• Mechanical Factor (Qms): 15.60 
• Electrical Factor (Qes): 0.81 
• Total Factor (Qts) 0.77
• Cone Area (Sd): 241 cm²
• Mechanical Mass (Mms): 15.75 g
• Bl Factor (Bl): 6.54 Tm
• Dc Resistance (Re): 3.7 Ohms
• Inductance (Le): 0.19 mH at 1 kHz
• Mechanical Mass Without Air (Mmd): 13.60 g
• Mechanical Compliance (Cms): 0.178 mm/N

Mounting and Shipping Information: 

• Diameter: 8.11" (206 mm)
• Baffle Cut: 7.09" (182 mm)
• Mounting Depth: 3.37" (85 mm)
• Overall Depth: 3.15" (80 mm)
• Weight: 2.77 Lbs (1.25 kg)