The REDCATT 181NPW is a high-power 18" 4 Ohm bass-mid woofer engineered for professional low-frequency systems, combining neodymium motor technology, a carbon fiber reinforced paper cone and a 134.6 mm voice coil for high output and controlled excursion.
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Highlights of the REDCATT 181NPW
- 18" 4 Ohm woofer with neodymium magnet and aluminum basket
- 1500 W AES, 3000 W continuous and 6000 W peak power handling
- 94.80 dB sensitivity with a 28 Hz resonant frequency
- 134.6 mm copper voice coil with high-temperature former technology
- Carbon fiber reinforced paper cone with triple silicone spider
- Designed for high-excursion vented subwoofer and touring bass-bin applications
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Product details REDCATT 181NPW
REDCATT 181NPW 18" Bass-Mid Woofer 4 Ohm
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The REDCATT 181NPW is built for demanding professional audio components projects where high output, low-frequency extension and mechanical durability are essential. This 18" bass-mid woofer uses a lightweight carbon fiber loaded paper cone together with a high-excursion triple-roll surround, delivering strong efficiency and controlled movement for powerful bass reproduction.
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At the heart of the driver is a 134.6 mm copper voice coil on a high-temperature former, supported by an improved coil and magnet ventilation system. With 1500 W AES, 3000 W continuous and 6000 W peak power handling, the 181NPW is suitable for professional subwoofer designs, touring bass bins and weight-critical installations that require serious output without excessive driver mass.
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The neodymium magnet structure keeps the net weight to 13.90 kg while maintaining a strong motor system with a BL of 29.70 T·m. Key Thiele/Small parameters include Fs of 28 Hz, Qts of 0.250, Vas of 167.70 liters and 94.80 dB sensitivity, giving system designers a capable low-frequency platform for efficient vented enclosures.
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For bass reflex systems, the 181NPW supports several practical enclosure alignments. A 200-liter cabinet tuned to 26 Hz offers high output and strong mid-bass with reduced excursion, a 235-liter cabinet tuned to 23 Hz provides a balanced general-purpose alignment, and a 275-liter cabinet tuned to 20 Hz extends low-frequency reach when used with appropriate high-pass filter protection.
