Bosch DCN Next Generation Service Manual download pdf (Page 25)

8. Technical Data

Conforms to the international standard IEC 60914, the

international standard for conference systems.

8.1 Microphones

General

Frequency response 100 Hz to 16 kHz

Transducer type condenser

Directional pattern cardioid

Max. SPL for THD <3% 110 dB

Equivalent input noise level 24 dB (A)

8.2 Headphones

8.2.1 Dynamic Headphones LBB 3015/04 and LBB 9095/30

Impedance 2 x 720 Ω

Frequency response 250 Hz to 13 kHz (-10 dB)

Connection 1.2 m (3.93 ft) cable

LBB 9095/30 with 6.3 mm (0.25 in)

and LBB 3015/04 with 3.5 mm

(0.14) jack plug

Power handling capacity 200 mW

Sensitivity (1 kHz) 96 dB SPL/earpiece at

1 mW/earpiece

Weight 90 g (0.19 lb)

Color Black/grey

8.2.2 Lightweight stereo headphones LBB 3443/00

Impedance 2 x 32 Ω

Frequency response 50 Hz to 20 kHz (-10 dB)

Connection 1.3 m (4.27 ft) cable with

3.5 mm (0.14 in) jack plug

Power handling capacity 50 mW

Sensitivity (1 kHz) 98 dB SPL/earpiece at

1 mW/earpiece

Weight 70 g (0.16 lb)

Color Charcoal with silver

8.2.3 Under The Chin Stereo Headphones LBB 3441/10

Impedance 2 x 150 Ω

Frequency response 50 Hz to 5 kHz (-10 dB)

Connection 1.2 m (3.93 ft) cable with

3.5 mm (0.14 in) jack plug

Power handling capacity 60 mW

Sensitivity (1 kHz) 107 dB SPL/earpiece at

1 mW/earpiece

Weight 33 g (0.07 lb)

Color Black

8.2.4 Single Earphone LBB 3442/00

Impedance 32 Ω

Frequency response 100 Hz to 5 kHz (-10 dB)

Connection 1.2 m (3.93 ft) cable with

3.5 mm (0.14 in) jack plug

Power handling capacity 5 mW

Sensitivity (1 kHz) 114 dB SPL/earpiece at

1 mW/ear piece

Weight 25 g (0.06 lb)

Colour Dark grey

24 | Technical data | DCN Next Generation Interpretation System Data Brochure

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Bosch DCN Next Generation Service Manual Page 25

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