REDCATT 181NPW 18″ Bass-mid woofer 4 ohms

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

Product details REDCATT 181NPW

REDCATT 181NPW 18″ Bass-Mid Woofer 4 Ohm

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.

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.

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.

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.