NEXO RS18 cardioid double 18″ subwoofer


The RS18 uses two 18″ long excursion Neodymium drivers drivers in a low profile cabinet to extend system response down to 30Hz. NEXO’s patent pending RAY SUB Technology is based on optimising the positioning and phase relationships of radiating surfaces in vented enclosures, permitting acoustic distance from rear to front sections to always increase as frequency decreases. Consequently rear and front sections sum up efficiently over the entire subwoofer bandwidth, allowing for an average of 5dB gain from the rear section in the forward direction and cancelling in the rear direction.


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SKU: 783 Category: Tags: , , ,


Low profile, high output, modular scalable bass
Configurable directivity pattern
Cardioid pattern reduces rear levels by minimizing rear/side wall reflections
Aerodynamically profiled vents with 20db noise reduction and improved linearity at high SPL
Frequency response 30Hz – 100Hz
Sensitivity 105dB
2 x 18″ configuration
Applies across entire NEXO Product Line
Frequency Response @ -3db [a]
Usable Range @ -6db [a]
Sensitivity 1W @ 1m [b]
105dB SPL Nominal
103dB SPL Nominal
Peak SPL @ 1m [b]
143–146dB Peak
140–143dB Peak
(2x1000W to 2 x 2000W/8Ω)
(2x1000W to 2 x 2000W/8Ω)
Omni & Directional pattern over the entire useable bandwidth depending on controller
Directivity Index [c]
1.5 < Q < 2 1.7dB < DI < 3dB
Q=4.3 DI=5.3dB
Crossover Frequency
From 75Hz to 100Hz
From 75Hz to 100Hz
Nominal Impedance
2 x 8Ω
2 x 8Ω
Recommended Amplifiers
One amplifier channel is required for Omni mode operation, rated at 2000 to 4000 Watts into 4Ω
Two amplifier channels are required for Directional mode operation, each rated at 1000 to 2000 Watts into 8Ω


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