About: PRV Audio 4MR60-NDY-4 Midrange Loudspeaker - 4 Ohms

The compact 4MR60NDY-4 is a 4″ full range neodymium loudspeaker that can deliver broad frequency coverage and flat midrange response that ensures vocals and instruments to deliver ideal sound to perform well in portable speaker systems, line arrays, or even car audio applications where weight and space limitations comes as a major factor in the project. With 91 dB efficiency and 60 watts power handling this driver is capable of remarkable output for its size.

Highlights: 

• Nominal Impedance: 4 Ohm
• 60 Watts RMS Music Power Handling, with a 91 dB Sensitivity, capable of generating a lot sound with a small cone!
• Broad 90-20,00 Hz frequency range for ultimate flexibility
• Strong neodymium motor, increases efficiency on a compact design.
• Very low profile loudspeaker, fit it in tight spots easily!

Specifications: 

• Nominal Diameter: 4” (101.6 mm)
• Nominal impedance: 4 Ohms
• Rated AES Power Handling (RMS): 30 Watts
• Program Power: 60 Watts
• Sensitivity 2.83V at 1m: 91 dB
• Recommended Hi Pass X-Over: 120 Hz (12 dB/Octave)
• Frequency Response: 90 – 20,000 Hz
• Voice Coil Diameter: 0.75” (19 mm)
• Voice Coil Wire: CCAW
• Voice Coil Winding Depth: 4.8 mm
• Former Material: Polyimide
• Magnetic Gap Depth: 4 mm
• Frame Material: Stamped Steel

Thiele-Small Parameters: 

• Equivalent Volume (Vas): 2.85
• Xmax: 1.40 mm
• Free Air Resonance (Fs): 95.6 Hz
• Mechanical Factor (Qms): 4.74
• Electrical Factor (Qes): 1.04
• Total Factor (Qts): 0.85
• Cone Area (Sd): 55.4 cm²
• Mechanical Mass (Mms): 4.17 g
• Bl Factor (Bl): 2.82 Tm
• Dc Resistance (Re): 3.3 Ohms
• Inductance (Le): 0.051 mH at 1 kHz
• Mechanical Mass Without Air (Mmd): 3.93 g
• Mechanical Compliance (Cms): 0.664 mm/N

Mounting and Shipping Information: 

• Overall Diameter: 5.02” (127.5 mm)
• Front Mount Baffle Cutout: 3.64” (92.5 mm)
• Mounting Depth: 1.75” (44.5 mm)
• Overall Depth: 1.95” (50 mm)
• Weight: 0.55 Lbs (0.25 kg)