MR15H92D-A Tact LF driver for P315, P325

15″ 400W AES 8Ω Bass Speaker Driver [MR15H92D-A]

The MR15H92D-A is a 15-inch bass speaker driver rated at 400W AES, with a maximum power rating of 800W. Its 8-ohm nominal impedance makes it suitable for compatible speaker cabinet builds and replacement applications.

Featuring a 75.5mm copper voice coil on a Kapton former, this driver incorporates a 190mm ferrite ring magnet and a polycotton M-roll surround. Its specified frequency range of 42Hz to 3.5kHz covers bass and midrange frequencies.

With a sensitivity of 95dB at 1W/1m, the MR15H92D-A provides clearly defined specifications for system matching. Published mounting dimensions and enclosure design parameters help installers assess compatibility before fitting.

Features

• 15-Inch Speaker Driver: Suitable for compatible cabinet builds and replacement applications.
• 400W AES Power Handling: Specified AES power rating, with maximum power rated at 800W.
• 8-Ohm Nominal Impedance: For use with compatible amplifier and speaker configurations.
• 75.5mm Copper Voice Coil: Built on a Kapton former with a winding depth of 16mm.
• Polycotton M-Roll Surround: Features an M-roll surround profile.
• Ferrite Ring Magnet: Equipped with a 190mm diameter magnet.
• 95dB Sensitivity: Specified at 1W/1m.

Specifications

• Model: MR15H92D-A
• Nominal Speaker Size: 15 inches
• Nominal Impedance: 8Ω
• AES Power Handling: 400W
• Maximum Power: 800W
• Sensitivity: 95dB at 1W/1m
• Frequency Range: 42Hz–3.5kHz
• Voice Coil Diameter: 75.5mm / approximately 3 inches
• Voice Coil Winding Material: Copper
• Voice Coil Former: Kapton
• Winding Depth: 16mm
• Surround Material: Polycotton
• Surround Design: M-roll
• Magnet: 190mm ferrite ring
• Resonant Frequency (Fs): 42Hz
• DC Resistance (Re): 5Ω
• Mechanical Q (Qms): 21.08
• Electrical Q (Qes): 0.53
• Total Q (Qts): 0.52
• Force Factor (BL): 16.5T·m
• Effective Moving Mass (Mms): 110.04g
• Compliance (Cms): 131µm/N
• Equivalent Compliance Volume (Vas): 135.4L
• Effective Piston Area (Sd): 855.3cm²
• Reference Efficiency (η₀): 1.80%

Dimensions & Weight

• Overall Diameter: 396mm
• Bolt Circle Diameter: 378mm
• Baffle Cutout Diameter: 356mm
• Overall Depth: 157mm
• Net Weight: 6.55kg

What’s in the Box?

• 15″ 400W AES 8Ω Bass Speaker Driver

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