Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for Bosch LB20
Summary of Contents for Bosch LB20
- Page 1 LB20 Premium Subwoofer LB20‑SW400‑D | LB20‑SW400‑L Installation manual...
-
Page 3: Table Of Contents
LB20 Premium Subwoofer Table of contents | en Table of contents Safety Suspension Notices Short information Introduction System features Packing list Product information Installation Suspending the subwoofer Replacing the logo Installing the IP65 port covers Installing the U-bracket - optional accessory... -
Page 4: Safety
The user is responsible for making sure the wall, ceiling, or structure is capable of supporting all objects suspended overhead. Any hardware used to suspend a loudspeaker not associated with Bosch is the responsibility of others. -
Page 5: Short Information
LB20 Premium Subwoofer Short information | en Short information The following table lists products in a family, with CTN (Commercial Type Number) and identifying product name DESCRIPTION. Description LB20-SW400-D Cabinet subwoofer 2x10" black LB20-SW400-L Cabinet subwoofer 2x10" white UB-10DB U-bracket for 10" subwoofer black UB-10DW U-bracket for 10"... -
Page 6: Introduction
For the toughest weather conditions, the IP rating of the LB20- SW400 subwoofer can be upgraded to IP65, using the included port plug accessory. -
Page 7: Packing List
LB20 Premium Subwoofer Introduction | en Packing list Quantity Component Subwoofer Mounting point covers Logo (spare) Allen wrench Weather input cover Screws for weather input cover IP65 port covers IP65 port cover screws Installation manual Tab. 3.1: Components list A (x 1) -
Page 8: Product Information
| Introduction LB20 Premium Subwoofer Product information Figure 3.2: Product information (subwoofer on the right is shown upside down) Item Description Grille U-bracket mounting points M10 flying points M10 safety point Input panel Subwoofer feet Weather input cover Tab. 3.2: Product information 2018.07 | 02 | F.01U.345.356... -
Page 9: Installation
LB20 Premium Subwoofer Installation | en Installation For safety, ensure the mounting surface supports more than the weight of the speaker. Use only industry-accepted fasteners and mounting methods when mounting the loudspeaker. Consult an expert if you are unsure. Caution! It is the installer's responsibility to determine and use the proper mounting hardware for the wall construction type. -
Page 10: Replacing The Logo
| Installation LB20 Premium Subwoofer Install a 10-mm rated forged eyebolt (not included) into the safety point. Suspend the subwoofer from the eyebolts using rated fittings and steel cable. Secure the subwoofer from the safety eyebolt using rated fittings and steel cable. -
Page 11: Installing The Ip65 Port Covers
LB20 Premium Subwoofer Installation | en Insert the logo. Press firmly to ensure the logo is applied. Installing the IP65 port covers To install the IP65 port covers, do the following: Caution! Ensure you securely tighten the screws for the IP65 port cover to prevent water leaks. -
Page 12: Installing The U-Bracket - Optional Accessory
| Installation LB20 Premium Subwoofer Reinstall the grille. Installing the U-bracket - optional accessory To install the U-bracket, do the following: Install the four screws (provided) into the U-bracket mounting points. Install a 10-mm rated forged eyebolt (not included) into the safety point. - Page 13 LB20 Premium Subwoofer Installation | en Remove the standard input panel. Disconnect the standard input panel. Connect the transformer input panel. Install the transformer input panel. Install the weather cover, if applicable. Bosch Security Systems B.V. Installation manual 2018.07 | 02 | F.01U.345.356...
-
Page 14: Installing The Crossover Input Panel - Optional Accessory
| Installation LB20 Premium Subwoofer Installing the crossover input panel - optional accessory To install the crossover input panel, do the following: Remove the standard input panel. Disconnect the standard input panel. Connect the crossover input panel. Install the crossover input panel. -
Page 15: Wiring
LB20 Premium Subwoofer Wiring | en Wiring Standard input panel 5.1.1 Mono operation Caution! For mono operation only use either the first two pins or the last two pins of the FR/IN connector. Do not wire the amplifier to all four pins. -
Page 16: Stereo Operation
| Wiring LB20 Premium Subwoofer 5.1.2 Stereo operation The amplifier, the subwoofer, and the speakers are wired for STEREO operation. It is highly advisable to support the unit while these connections are being made. Connect all wires to the speaker at the back terminal plate observing proper polarity of the connections. After all connections are made test the complete system operation. -
Page 17: Transformer Input Panel - Optional Accessory
LB20 Premium Subwoofer Wiring | en Transformer input panel - optional accessory 5.2.1 Mono operation Caution! For mono operation only use either the first two pins or the last two pins of the FR/IN connector. Do not wire the amplifier to all four pins. - Page 18 | Wiring LB20 Premium Subwoofer A: STEREO/MONO switch set to mono. Fault Signal/Clip CH1 CH2 CH3 Figure 5.2: Mono configuration 2 2018.07 | 02 | F.01U.345.356 Installation manual Bosch Security Systems B.V.
-
Page 19: Stereo Operation
LB20 Premium Subwoofer Wiring | en 5.2.2 Stereo operation The amplifier, the subwoofer, and the speakers are wired for STEREO operation. It is highly advisable to support the unit while these connections are being made. Connect all wires to the speaker at the back terminal plate observing proper polarity of the connections. After all connections are made test the complete system operation. -
Page 20: Crossover Input Panel - Optional Accessory
| Wiring LB20 Premium Subwoofer Crossover input panel - optional accessory 5.3.1 Mono operation Caution! For mono operation only use either the first two pins or the last two pins of the FR/IN connector. Do not wire the amplifier to all four pins. -
Page 21: Stereo Operation
LB20 Premium Subwoofer Wiring | en 5.3.2 Stereo operation The amplifier, the subwoofer, and the speakers are wired for STEREO operation. It is highly advisable to support the unit while these connections are being made. Connect all wires to the speaker at the back terminal plate observing proper polarity of the connections. After all connections are made test the complete system operation. - Page 22 | Wiring LB20 Premium Subwoofer A: STEREO/MONO switch set to stereo. B: HI-PASS 4 OHM/8 OHM switch set to 4 ohm. Fault Signal/Clip CH1 CH2 CH3 Figure 5.4: Stereo configuration 2 2018.07 | 02 | F.01U.345.356 Installation manual Bosch Security Systems B.V.
-
Page 23: Troubleshooting
LB20 Premium Subwoofer Troubleshooting | en Troubleshooting Problem Possible Causes Action No Sound Amplifier Connect a known working test speaker to the amplifier outputs. If there is no sound, check all electronics are on, the signal routing is correct, the source is active; the volume is turned up, and so on. -
Page 24: Technical Data
| Technical data LB20 Premium Subwoofer Technical data Frequency response (-10 dB) : 33 Hz - 500 Hz Sensitivity : 94 dB Max. SPL (Calculated): 120 dB (126 dB Peak) Power handling: 400 W (1600 W Peak) Continuous Pink Noise... -
Page 25: Dimensions
LB20 Premium Subwoofer Technical data | en Dimensions 632.0 mm [24.88 in] 533.1 mm [20.99 in] 650.7 mm [25.62 in] 490.8 mm [19.32 in] 360.5 mm 356.0 mm [14.19 in] [14.02 in] 578.8 mm [22.79 in] Frequency response and impedance Figure 7.1: Frequency response and impedance... - Page 26 | Technical data LB20 Premium Subwoofer Figure 7.2: Frequency response and impedance with cross-over 2018.07 | 02 | F.01U.345.356 Installation manual Bosch Security Systems B.V.
-
Page 27: U-Bracket Dimensions - Optional Accessory
LB20 Premium Subwoofer U-bracket dimensions - optional accessory | en U-bracket dimensions - optional accessory The U-bracket dimensions are not to scale and are for reference only. 100.0 mm [3.94 in] 8x 10.0 mm [8x 0.39 in] 2x 21.0 mm [2x 0.82 in]... - Page 28 Bosch Security Systems B.V. Torenallee 49 5617 BA Eindhoven Netherlands www.boschsecurity.com © Bosch Security Systems B.V., 2018...