21" ZA-21PB625DM Professional Subwoofer Speaker

The ZA-21PB625DM is a high-performance 21-inch professional subwoofer engineered for extreme low-frequency output and high SPL applications. Designed for demanding sound reinforcement environments, this driver delivers an impressive 3000 Watts RMS power handling and 6000 Watts peak power capacity, ensuring powerful and consistent bass performance.

Equipped with a 6-inch Inside/Outside 4-layer voice coil, the speaker offers superior thermal management, enhanced durability, and stable operation even under continuous high-power use. The dual Y35 ferrite magnet system provides strong magnetic flux for improved efficiency and deep bass response.

Its high-strength paper cone construction ensures rigidity and accuracy while maintaining natural tonal characteristics. With a sensitivity rating of 98 ±2 dB and a wide frequency response of 35 Hz to 2 kHz, this subwoofer is ideal for large-scale professional audio systems requiring impactful and controlled low-end performance.

Key Features

• 21-Inch High Power Professional Subwoofer
• 3000 Watts RMS / 6000 Watts Peak Power Handling
• 8 Ohm Nominal Impedance
• 6-Inch Heavy-Duty Voice Coil (Inside/Outside 4 Layer Winding)
• Dual Ferrite Magnet (Y35 Grade)
• High Strength Paper Cone for Accurate Bass Response
• 98 ±2 dB Sensitivity for High Output Efficiency
• Extended Frequency Range: 35 Hz – 2 kHz
• Built for High SPL & Continuous Performance

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Applications

• Professional Line Array Systems
• Large Venue Sound Reinforcement
• DJ & Touring Sound Systems
• Concert & Live Event Audio
• Outdoor PA Systems
• Club & Festival Installations