NS18 Subwoofer Driver

Product Description

This is a subwoofer driver with a nominal diameter of 465 mm (18 in), engineered for deep, high-output low-frequency performance in professional audio and sound reinforcement systems. It features a 115 mm (4.5 in) copper voice coil (wound outside and inside) for superior thermal management and high power handling.

The driver has a rated impedance of 8 ohms and a nominal AES power rating of 1200 W (2400 W continuous program), delivering a sensitivity of 97 dB (1 W/1 m). Its frequency response ranges from 35 Hz to 1,500 Hz, making it ideal for low-frequency reinforcement in subwoofer enclosures.

Thiele-Small parameters include:

• Fs: 35 Hz
• Re: 6.5 ohms
• Qms: 7.4215
• Qes: 0.371
• Qts: 0.35
• Vas: 157 L
• Sd: 0.1257 m
• Mms: 258.02 g
• BL: 33 TM

Mechanical & Mounting Details

• Overall diameter: 460 mm (18 in)
• Depth: 240 mm (9.45 in)
• Mounting bolt circle: 443 mm (17.4 in)
• Baffle cut-out: 423 mm (16.7 in)
• Bolt holes: 8 6.5 mm (0.26 in)

Shipping Information

• Net weight per unit: 9.3 kg
• Shipping weight per unit: 11.3 kg
• Package dimensions per unit: 50 50 28 cm