LB2-UC30-L1 - Speaker BOSCH - Free user manual and instructions

Product Type	Premium-sound Cabinet Loudspeaker
Model	LB2-UC30-L1
Brand	Bosch
Dimensions (H x W x D)	250 x 160 x 140 mm (9.84 x 6.30 x 5.51 in)
Weight	Approx. 2.4 kg (5.29 lb)
Color	White (RAL 9010) or Charcoal (RAL 7021)
Rated Power (PHC)	30 W
Maximum Power	45 W
Power Tapping	30 / 15 / 7.5 / 3.75 W
Sound Pressure Level (at rated power / 1 W, 1 kHz, 1 m)	105 / 90 dB SPL
Effective Frequency Range (-10 dB)	100 Hz to 18.5 kHz
Opening Angle (1 kHz / 4 kHz, -6 dB)	160° / 81° (horizontal), 150° / 90° (vertical)
Rated Input Voltage	15.5 / 70 / 100 V
Rated Impedance	8 / 163 / 333 ohm
Transducers	127 mm (5 in) woofer, 13 mm (0.51 in) dome tweeter
Connection	2 m (78.74 in) two-wire cable
Environmental Protection	IP65 (water and dust)
Operating Temperature	-25 °C to +55 °C (-13 °F to +131 °F)
Storage Temperature	-40 °C to +70 °C (-40 °F to +158 °F)
Relative Humidity	< 95%
Safety Certification	EN 60065
Self-Extinguishing	UL94 V-0
Corrosion Resistance	IEC 60068-2-52 (salt mist), IEC 60068-2-11

Frequently Asked Questions - LB2-UC30-L1 BOSCH

How do I select the correct power tapping for my 70V/100V line?

The LB2-UC30-L1 has selectable power tappings: 30, 15, 7.5, and 3.75 W. Use the tap that matches the desired output level and total load on the line. Ensure the total wattage of all speakers does not exceed the amplifier's rated output. Refer to the installation note for wiring diagrams.

Can I use this speaker outdoors?

Yes, the speaker has an IP65 rating, making it suitable for outdoor use. It is protected against dust and water jets. However, avoid direct submersion and ensure proper cable entry sealing.

What is the impedance of the speaker?

The rated impedance depends on the voltage tap selected: 8 ohms at 15.5 V, 163 ohms at 70 V, and 333 ohms at 100 V. For low-impedance systems, use the 8 ohm tap.

How do I mount the speaker?

The speaker is designed for surface mounting. Use the provided bracket or optional mounting accessories. Ensure secure fixing to a wall or ceiling. Refer to the dimensional diagram for hole spacing.

What type of cable should I use for connection?

A two-wire cable is supplied (2 m). For longer runs, use a suitable stranded wire with appropriate gauge (e.g., 1.5 mm²) for 70V/100V systems. Keep cable length within limits to minimize power loss.

Can I paint the speaker?

Yes, the cabinet can be painted. Use a water-based paint compatible with the material (ABS plastic). Avoid painting the grille or transducers to maintain acoustic performance.

What is the frequency response of the LB2-UC30-L1?

The effective frequency range is 100 Hz to 18.5 kHz (-10 dB). It delivers clear highs and rich lows, suitable for background music and paging applications.

How do I clean the speaker?

Wipe the cabinet with a soft, dry cloth. Do not use solvents or abrasive cleaners. For the grille, gently vacuum with a brush attachment to remove dust.

Is the speaker compatible with 100V line systems?

Yes, the speaker is designed for 100V line systems. Select the 100 V tap (333 ohms) and set the power tapping as needed. Ensure the amplifier is 100V-rated.

What certifications does this speaker have?

It is certified to EN 60065 (safety) and meets IP65 (water/dust), UL94 V-0 (self-extinguishing), and corrosion resistance standards (IEC 60068-2-52, -11).

USER MANUAL LB2-UC30-L1 BOSCH

Two white outdoor air purifiers with black covers, one black and one white, displayed against a plain background (no text or symbols visible)

Premium-sound Cabinet Loudspeaker Range

LB2-UC15-D1/L1 and LB2-UC30-D1/L1

BOSCH

en Installation note

1 Installation

Fig. 1
(1) LB2-UC15-x1
(2) LB2-UC30-x1

Fig. 2 Dimensions: mm [in]

(1) LB2-UC15-x1

(2) LB2-UC30-x1

graph LR
    A["Device with sensor"] --> B["Amplification"]
    B --> C["Filter"]
    C --> D["Filter"]
    D --> E["Output"]

Fig. 3 Fig. 4

2 Technical data

Electrical*

Product LB2-UC15-D1	LB2-UC15-L1	LB2-UC30-D1LB2-UC30-L1
Description Premium-sound Cabi net	Loudspeaker	Premium-sound CabinetLoudspeaker
Maximum power 22.5 W 45 W
Rated power (PHC) 15 W 30 W
Power tapping 15/7.5/3.75/1.9 W	W 30/15/7.5/3.75 W
Sound pressure levelat rated power / 1 W (1 kHz,1 m)	98/86 dB (SPL) 105/90 dB (SPL)
Effective frequency range (-10dB)	95 Hz to 19.5 kHz 100 Hz to 18.5 kHz
Opening angleat 1 kHz / 4 kHz (-6 dB)	179° / 101° (hor.)168° / 35° (ver.)	160° / 81° (hor.)150° / 90° (ver.)
Rated input voltage 11/70/100 V	15.5/70/100 V
Rated impedance 8/326/667 ohm	8/163/333 ohm
Transducers 101.6 mm (4") woofer,13 mm (0.51 ") dometweeter		127 mm (5") woofer, 13 mm(0.51 ") dome tweeter
Connection 2 m (78.8 in.) two-w	re cable 2 m (78.8 in.) two-w	re cable

* Technical performance data acc. to IEC 60268-5

Mechanical

Dimensions (HxWxD)	205x136x117 mm8.07x5.35x4.60 in	250x 60x140 mm9.84x6.30x5.51 in
Weight	Approx. 1.9 kg (4.18 lb)	Approx. 2.4 kg (5.29 lb)
Color	White (RAL 9010) (L) orCharcoal (RAL 7021) (D)	White (RAL 9010) (L) orCharcoal (RAL 7021) (D)

Environmental

Operating temperature	-25 °C to +55 °C (-13 °F to +131 °F)
Storage temperature	-40 °C to +70 °C (-40 °F to +158 °F)
Relative humidity	<95%

Certification and Approvals

Safety acc. to EN 60065
Water and dust protection acc. to EN 60529 IP 65
Self extinguishing acc. to UL94 V 0
Chlorine resistant acc. to IEC60068-2-42
Corrosion resistant acc. to IEC60068-2-52
Salt mist acc. to IEC60068-2-11

LB2-UC15-D1, LB2-UC15-L1

Circuit diagram Frequency response

Polar diagram horizontal (measured with pink noise)

Polar diagram vertical (measured with pink noise)

LB2-UC30-D1, LB2-UC30-L1

Circuit diagram Frequency response

Polar diagram horizontal (measured with pink noise)

Polar diagram vertical (measured with pink noise)

Bosch Security Systems B.V.

Torenallee 49

5617 BA Eindhoven

The Netherlands

www.boschsecurity.com

© Bosch Security Systems B.V., 2014