Bosch LB20 loudspeakers

Bosch LB20 series

The LB20 series is the newest member of the Bosch family of commercial loudspeakers for indoor and outdoor applications. Acoustically tuned and aesthetically they are compatible with other Bosch models.

The LB20 loudspeakers from Bosch are very suitable for outdoor use, but can also be used indoors. The design is compact, the price / quality ratio is excellent and the devices deliver first-class performance. The housing of the devices is made of fire resistant ABS. Easy installation and excellent sound reproduction make these speakers a smart choice. A matching 2-way subwoofer, the LB20-SW400, is offered in the Bosch LB20 series. These can also be used both indoors and outdoors, without any consequences for the performance.

Applicable in any environment

The LB20 series is extremely suitable for outdoor applications, since the products are resistant to UV radiation (IEC 60068-2-5). In addition, all speakers have an IP rating of at least IP54 and some even IP 65. The entire Bosch LB20 loudspeaker series is resistant to chlorine (IEC 60068-2-60) and salt (IEC 60068-2-11) and does not contain any stainless steel. The Bosch LB20 series also has a suitability certificate for swimming pools, and is therefore perfectly suited for industrial and chemical environments and of course swimming pools.

Bosch LB20 products are available in black and white, and therefore fit almost every interior and exterior. In addition, all devices are suitable for spraying and the grills can be removed. The rotatable logos allow them to be placed both vertically and horizontally, while maintaining their appearance.

A suitable sound solution for every application

For certain locations, such as on a patio or in a swimming pool, it is important that the loudspeakers are resistant to moisture. Bosch made the devices not only discreet, but also very robust and weather-resistant. It makes this series extremely suitable for use in the branches below.

• Bars
• Restaurants
• Patios
• Retail
• Hotels
• Swimming pools
• Airports
• Gyms
• Places of worship
• Theaters

Specifications of the Bosch LB20 series

	LB20-PC15-4 /LB20-PC40-4	LB20-PC30-5 /       LB20-PC75-5	LB20-PC60-8 / LB20-PC90-8	LB20-PC60EW-5	LB20-SW400
Frequency response (-10 dB)	75 Hz – 20 kHz1	60 Hz – 20 kHz1	50 Hz – 20 kHz1	55 Hz – 20 kHz1	33 Hz – 500 Hz1
Sensitivity	86,5 dB2 / 87 dB2	90 dB2	90 dB2	89 dB2	94 dB2
Max. SPL	98,5 dB / 103 dB	109 dB	110 dB	108 dB	120 dB
Coverage angle	Horizontal 110°, vertical 110°	Horizontal 90°, vertical 90°	Horizontal 90°, vertical 90°	Horizontal 90°, vertical 90°	–
Power handling	15 W / 40 W	30 W / 75 W	60 W / 90 W	90 W	400 W
Low-Z	No / Yes	Yes	Yes	Yes	Yes
Nominal impedance	– / 8 Ω	8 Ω	8 Ω	8 Ω	(2) 8 Ω (stereomodus); (1) 4 Ω (monomodus)
Input transformer (70 V/100 V)	15 W / –	30 W / –	60 W / –	60 W	Optional Accessory
Transformer Taps	70 V: 3,7 W, 7,5 W, 15 W100 V: 7,5 W, 15 W	70 V: 3,7 W, 7,5 W, 15 W, 30 W, 8 Ω100 V: 7,5 W, 15 W, 30 W, 8 Ω	70 V: 7,5 W, 15 W, 30 W, 60 W, 8 Ω100 V: 15 W, 30 W, 60 W, 8 Ω	70 V: 60 W, 30 W, 15 W, 7,5 W, 8 Ω100 V: 60 W, 30 W, 15 W, 8 Ω	Optional Accessory
LF Transducer	102 mm	133 mm	203 mm	133 mm	Two 10 in (254 mm)
HF Transducer	20 mm	20 mm	25 mm	20 mm	–
Connectors	Captive screws on wall bracket. Removable locking 4-pin connector (Euroblock) Max. wire size 12AWG (2.5 mm)	Captive screws on wall bracket. Removable locking 4-pin connector (Euroblock) Max. wire size 12AWG (2.5 mm)	Removable locking 4-pin connector (Euroblock) Max. wire size 12AWG (2.5 mm)	Captive screws on wall bracket. Removable locking 4-pin connector (Euroblock) Max. wire size 12AWG (2.5 mm	Two removable locking 4-pin connector (Euroblock) Input and output Max. wire size 12AWG (2.5 mm)
Environmental	IEC 60529 IP54 weatherproof, IEC 60068-2-5 solar radiation, IEC 60068-2-11 salt haze, IEC 60068-2-42 SO2, IEC 60068-2-60 chlorine	IEC 60529 IP54 weatherproof, IEC 60068-2-5 solar radiation, IEC 60068-2-11 salt haze, IEC 60068-2-42 SO2, IEC 60068-2-60 chlorine	IEC 60529 IP54 weatherproof, IEC 60068-2-5 solar radiation, IEC 60068-2-11 salt haze, IEC 60068-2-42 SO2, IEC 60068-2-60 chlorine	IEC 60529 IP64 weatherproof, IEC 60068-2-5 solar radiation, IEC 60068-2-11 salt haze, IEC 60068-2-42 SO2, IEC 60068-2-60 chlorine	IEC 60529 IP54 weatherproof IP-65 with portcovers, IEC 60068-2-5 solar radiation, IEC 60068-2-11 salt haze, IEC 60068-2-42 SO2, IEC 60068-2-60 chlorine
Color	Black (RAL 9004) or white (RAL 9003)
Dimensions (H x B x D)	193 mm x 140 mm x 120 mm	255 mm x 180 mm x 154 mm	390 mm x 250 mm x 224 mm	255 mm x 180 mm x 150 mm	356 mm x 651 mm x 491 mm
Net weight	1,8 kg / 1,5 kg	3,2 kg / 2,7 kg	5,8 kg / 5,1 kg	3,2 kg	17,9 kg
Shipping weight (pair)	5,4 kg / 5 kg	7,9 kg / 6,7 kg	14,8 kg / 13,0 kg	9,5 kg	21 kg
Included hardware	Mounting Bracket, Allen Wrench	Mounting Bracket, Allen Wrencch	Mounting Bracket, Allen Wrench, input cover	Mounting Bracket, Allen Wrench	2) Subwoofer feet, weather input cover, (2) IP-65 port covers
Packaged quantity	2	2	2	2	1

Authorised Bosch Commercial Audio Distributor

Tau Audio Solutions is authorised Bosch Commercial Audio distributor in the Benelux. This means that they are fully equipped to provide each customer with the right advice and products. As a qualified partner, Tau is happy to advise you on selecting the right product mix and to give guidance in making the design and installation of the project. Within the Commercial Audio package, Tau Audio Solutions offers, among other things, the entire Bosch LB20 series, consisting of 4-inch, 5.25-inch, 8-inch 2-way loudspeakers and a matching 10-inch subwoofer.

Bosch

For more than 125 years the name Bosch stands for quality and reliability. Continuous investment in research and development makes sure Bosch can keep this high standard. Since the beginning of the 21st century Bosch started to focus on the audio world. Bosch Security and Safety Systems is happy to help you find a solution for every desired application. They are therefore proud to offer you a wide range of systems and components in the field of fire and intrusion detection, CCTV, Public Address, commercial audio, Congress and social alarm.

Bosch is a globally preferred supplier of innovative technology that is supported by the highest level of service and support. If you need solutions that you can rely on, then you need to choose Bosch.

Questions about the Bosch LB20 series

Tau Audio Solutions BV has an enthusiastic team of audio specialists, who are happy to help you with all your questions. In addition, Tau has almost all Bosch products in stock, to quickly provide you the products which you need for your project. Do you need more information about a specific product, advice on purchasing or installation of the right audio setup? Or do you have a project that you would like to be carried out by one of the Tau dealers? Please contact Tau via the contact form or 050 549 9090.