About: PRV Audio 6MR500CF-NDY-4 6" Neodymium Midrange Loudspeaker - 4 Ohms 

PRV Audio's 6MR500CF-NDY 6" midrange driver pair was designed for power sports applications, featuring a water-resistant design to ensure optimum performance taking into account the effects of the outdoor environment. The powerful neodymium motor and lightweight carbon fiber cone make this driver extremely efficient and capable of incredible SPL output. These drivers are sold in pairs.

The tailored response of the 6MR500CF-NDY-4 comes from its exotic yet supremely engineered carbon fiber cone that delivers the signature PRV audio combination of depth and accuracy on vocal reproduction. Beyond good looks, this cone is extremely light, surprisingly rigid, and provides excellent damping to keep narrow peaks under control, resulting in an incredibly natural yet accurate sound. A rubber surround and large flat spider suspend the cone and keep it linear through the limits of excursion with minimal restriction, further improving dynamics and transients.

The suspension design of this mid range features the single layer spider – which connects to the coil former with premium stitched lead wires, all being driven by a copper-clad aluminum wire voice coil providing high efficiency and excellent power handling, complemented by a high-power neodymium radial slugs that immerse the voice coil in a strong magnetic field.

You can expect excellent off-axis and transient response from this water-resistant mid range for a great sound stage and realistic sound reproduction.

Highlights:

• Water resistant carbon fiber cone and rubber surround to handle the outdoor environment
• Low inductance for extended frequency response and minimal distortion
• 96 dB and capable of handling 250 watts RMS for high output capability
• Includes rugged grills to protect the drivers cone without affecting frequency response
• Sold as a pair 

Specifications:

• Nominal Diameter: 6″ (152 mm)
• Nominal impedance: 4 Ohms
• Rated AES Power Handling (RMS): 250 Watts
• Program Power: 500 Watts
• Sensitivity 2.83V at 1m: 96 dB
• Recommended Hi Pass Crossover: 95 Hz** **12db Per Octave Crossover
• Frequency Response at -10dB: 95 – 11,000 Hz
• Voice Coil Diameter: 2.0″ (50.8 mm)
• Voice Coil Wire: CCAW
• Voice Coil Winding Depth: 10.0 mm
• Former Material: Kapton
• Magnetic Gap Depth: 7.0 mm
• Frame Material: Stamped Steel

Thiele-Small Parameters: 

• Equivalent Volume (Vas): 5.14 l
• Excursion (Xmax): 3.25 mm
• Free Air Resonance (Fs): 92.5  Hz
• Mechanical Factor (Qms): 12.85
• Electrical Factor (Qes): 0.29
• Total Factor (Qts): 0.28
• Cone Area (Sd): 143 cm²
• Mechanical Mass (Mms): 16.49 g
• Bl Factor (Bl): 10.73 Tm
• Dc Resistance (Re): 3.5 Ohms
• Inductance (Le): 0.185 mH at 1 kHz
• Mechanical Mass Without Air (Mmd): 15.52 g
• Mechanical Compliance (Cms): 0.179 mm/N