PRV Audio 6MR400-4 BULLET Mid-range Woofer

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The PRV Audio 6MR400-4 BULLET is a professional 6 inch midrange driver designed for high output and clarity in demanding sound reinforcement and DIY loudspeaker applications. It combines high sensitivity with robust power handling to deliver clean and controlled midrange performance.

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Highlights

• 100 Watts RMS / 200 Watts program power for strong output and reliability
• 94 dB sensitivity for excellent efficiency in professional setups
• Frequency response from 155 Hz to 11,000 Hz ideal for vocal and midrange clarity
• 1.5” copper voice coil on a Kapton former ensures thermal stability and durability

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Product details

PRV Audio 6MR400-4 BULLET Professional Mid Range Driver

The PRV Audio 6MR400-4 BULLET is a 6 inch professional midrange driver with a nominal impedance of 4 ohm, engineered for use in PA systems, stage monitors, and custom loudspeaker designs. Its compact stamped steel frame and shallow mounting depth of 66.5 mm make it suitable for space efficient enclosures while maintaining structural rigidity

This driver features a 38 mm CCAW voice coil with a winding depth of 9.5 mm, combined with a magnetic gap depth of 6.0 mm to ensure controlled excursion and stable performance at high power levels. With a continuous RMS rating of 400 watts and peak power handling up to 800 watts, it is built to withstand demanding operating conditions.

The frequency response from 145 Hz to 12,500 Hz provides clear and articulate midrange output, making it ideal for vocal and instrument reproduction. A sensitivity of 95 dB at 2.00 V and 1 meter ensures strong output with minimal amplifier strain, while the recommended 145 Hz high pass crossover at 12 dB per octave allows for full power handling and system protection.

Thiele Small parameters such as a total Q of 0.60, a cone area of 143 cm², and a linear excursion of 3.25 mm support predictable enclosure design and reliable integration into multi way systems. The PRV Audio 6MR400-4 BULLET is a solid choice for audiophiles and DIY builders seeking high efficiency, durability, and professional grade midrange performance.

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Technical data

• Article number 6MR400-4 BULLET
• Woofer Type Midrange
• Nominal Diameter 6" | 152 mm
• Power Handling (RMS) 400 Watts
• Sensitivity (SPL at 1m / 2.83V) 95 dB
• Frequency Response 145 - 12500 Hz
• Voice Coil Diameter 38 mm
• DC Resistance (Re) 3.6 Ω
• Voice Coil Inductance (Le) 0.136mH
• Resonant Frequency (Fs) 144.1 Hz
• Mechanical Q (Qms) 11.98
• Electromagnetic Q (Qes) 0.64
• Total Q (Qts) 0.6
• Diaphragm Mass Inc. Airload (Mms) 7.94 g
• Surface Area of Cone (Sd) 143 cm²
• BL Product (BL) 6.37 Tm
• Compliance Equivalent Volume (Vas) 4.40 L
• Maximum Linear Excursion (Xmax) 3.25 mm
• Cone / Diaphragm Material Paper
• Voice Coil Wire Material CCAW
• Voice Coil Former Kapton
• Basket / Frame Material Stamped Steel
• Magnet Material Ferrite
• Overall Outside Diameter 167.5 mm
• Overall Depth 73.5 mm
• Baffle Cutout Diameter 143.5 mm