Subwoofer

RM 128 SB MK4
Dual 18" Bass Reflex Subwoofer

Frequency Range (-10 dB)
Frequency Response (±3 dB)
Horizontal Coverage Angle (-6 dB)
Vertical Coverage Angle (-6 dB)
Crossover Modes
System Sensitivity (1w/1m)
Maximum SPL¹
System Nominal Impedance
Power Rating (RMS / Program / Peak)² 
 
TRANSDUCER
LF Driver
 
PHYSICAL
Enclosure Material
Finish
Input Connector
Dimension (H x W x D)
 
Weight (Net/Shipping)
Mounting & Suspension
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30 Hz - 800 Hz
40 Hz - 400 Hz
Omni
Omni
Passive
98 dB
137 dB
4 Ohm
2000 / 4000 / 8000 Watt

 
2 x RM 113186, 18", Ferrite, 113mm VC

 
18mm, 13-ply Russian birch plywood
Black texture painting
Neutrik Speakon NL4 (x2 Parallel)
1052 x 635 x 640 mm (net)
1092 x 765 x 780 mm (shipping)
97 / 103 kg
Pole mount Socket

¹ Calculated based on peak power and measured sensitivity
² RMS: pink noise with 6dB crest factor, 12dB BW @ 35 Hz - 350 Hz, 2Hr/step untill break, single unit


 


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