Bosch LB20-SW400-D

Bosch LB20-SW400-D cabinet subwoofer loudspeaker features 2 x 10″ woofers, 400W output at 8 ohms. Weather resistant to IP54


In Stock
SKU: LB20-SW400-D Category: Tag:


The Bosch LB20-SW400-D (Black) and LB20-SW400-L (White) cabinet subwoofer loudspeaker features 2 x 10″ woofers and offers 400 watts power output at 8 ohms. (Supplied individually) Weather resistant speaker, rated IP54.

Can be configured for 2 x 8 Ohm stereo or mono 1 x 4 Ohm modes. Weather resistant to IP54 and rated to IP65 if supplied port plugs and input cover are used. Resistant against sun, salt and moisture. Zinc plated powder coated grille. M8 rigging points, Optional U-Bracket for wall mounting. Ideal as an outdoor speaker.

The Bosch LB20-SW400-D (Black) and LB20-SW400-L (White) subwoofer can be mounted horizontally or vertically thanks to the rotatable badge.

The Bosch LB20 series is a new range of commercial loudspeaker, weather resistant speaker IP54 or IP65, and can be used indoors or outdoors. Superior quality ensures higher SPLs and maximum intelligibility. They are available in a range of sizes and different power offerings all acoustically and aesthetically matched.


  • Two 10 inch high-excursion woofers
  • Carefully engineered for outdoor environments (IP54 and IP65), without compromising performance
  • 400 W power handling provides for 120 dB maximum SPL (126 dB peak)u70/100 V transformer input panel accessory available
  • Crossover input panel accessory available


Frequency response (-10 dB): 33 Hz – 500 Hz1
Sensitivity: 94 dB2
Max. SPL (Calculated): 120 dB (126 dB Peak)
Power handling: 400 W (1600 W Peak) Continuous Pink Noise (100 hours)
Low Z: Yes
Nominal impedance: (2) 8 Ω (stereo mode); (1) 4 Ω (mono mode)
Recommended High-Pass: 40 Hz (24 dB/octave)
Input transformer (70 V/100 V): Optional accessory
Transformer taps: Optional accessory
LF transducer: Two 10 inch (254 mm)
Connectors: Two removable locking 4-pin connector (Euroblock) – Input and output. Max. wire size 12 AWG (2.5 mm).
Environmental: IP-54 (per IEC-60529); IP-65 with port covers
Color: Black (RAL 9004) or white (RAL 9003)
Dimensions (H x W x D): 356 mm x 651 mm x 491 mm (14.0 in x 25.6 in x 19.3 in)3
Net weight: 17.9 kg (39.5 lb)3
Shipping weight: 21 kg (46.3 lb)
Included hardware: (2) Subwoofer feet, Allen wrench, weather input cover, (8) screws for the weather input cover, (2) IP65 port covers, (12) IP65 port cover screws
Packaged quantity: 1