About the PRV Audio 69MR500CF-NDY-4 6x9" Neodymium Midrange Loudspeaker 250W RMS - 4 Ohm:

The MR500CF-NDY series was designed for power sports applications, featuring a water-resistant design to unsure optimum performance taking into account the effects of the outdoor environment.

Ideal for upgrading your sound system in your boat, UTV, 4-wheeler or motorcycle, this mid range speaker becomes the new standard in vocal reproduction for outdoor applications. Constructed of high-end materials like a carbon fiber cone, high temperature voice coil, and huge neodymium magnet, this driver produces natural sound with remarkably low distortion.

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.

Built for loud, clear vocal performance in tight, compact spaces, PRV Audio’s 69MR500CF-NDY-4 neodymium-powered midrange features a sensitivity of 96 dB (2.83V/1m) and weighs about 4.16 pounds! 4 ohm impedance. Pro Audio On Wheels Series is dedicated to delivering outstanding pro audio performance to your motorsports application. A bumped back plate, vented magnet system, vented pole piece, high-temperature voice coil, allow for high power handling while protecting this driver from extreme transient power peaks.

Highlights

• Water resistant with true PRO audio mid range performance
• Damped carbon fiber cone lowers moving mass and minimizes resonances 
• Low inductance and extended frequency response
• Powerful neodymium magnet structure features distortion canceling fixtures
• Fast transient response, minimal tonal coloration, and deep dynamic mid bass
• Sold in pairs - grill and screws are included

Technical Details

General Specifications

• Nominal Diameter: 6"x9" (152.228 mm)
• Nominal Impedance: 4 Ohms
• Rated AES Power Handling (RMS): 250 Watts
• Program Power: 500 Watts
• Sensitivity 2.00V at 1m: 96 dB
• Recommended High Pass Crossover: 110 Hz* *12 dB Per  Octave Crossover
• Frequency Response at -10dB: 100-13,000 Hz
• Voice Coil Diameter: 2" (50.8 mm)
• Voice Coil Wire: CCAW
• Former Material: Kapton
• Frame Material: Stamped Steel

Thiele-Small Parameters

• Equivalent Volume (Vas): 8.95 l
• Excursion (Xmax): 3.25 mm
• Free Air Resonance (Fs): 91.0 Hz
• Mechanical Factor (Qms): 15.81
• Electrical Factor (Qes): 0.36
• Total Factor (Qts): 0.35
• Cone Area (Sd): 216 cm²
• Mechanical Mass (Mms): 22.34 g
• Bl Factor (Bl): 10.92 Tm
• Dc Resistance (Re): 3.4 Ohms
• Inductance (Le): 0.05 mH at 1 kHz
• Mechanical Mass Without Air (Mmd): 20.54 g
• Mechanical Compliance (Cms): 0.136 mm/N

Extra Info

• Overall Diameter: 6.44"x9.29" (163.5x236 mm)
• Front Mount Baffle Cutout: 5.87"x8.62" (149x219 mm)
• Mounting Depth: 3.39" (86 mm)
• Overall Depth: 3.74" (95 mm)
• Net Weight: 3.86 Lbs (1.75 kg)
• Shipping Weight: 9.70 Lbs (4.4 kg)
• Carton Dimensions WxLxH: 15.3"x10.8"x5.31" (390x275x135 mm)