Bosch CCSD-CURD Control unit for CCS 1000 D Digital Discussion System with recorder and DAFS, Plug-and-play functionality, for quick and easy connection of up to 80 Discussion Devices, Intuitive web browser interface, control for advanced, configuration and control, Built‐in MP3 recorder with internal memory and USB recording, Built‐in Digital Acoustic Feedback, Suppression (DAFS) for ensuring superior speech intelligibility.

Compact yet versatile.

The CCS 1000 D digital discussion system is lightweight, easy to set up, and easy to use. And that provides advanced capabilities and outstanding versatility. Designed specifically for easy, plug-and-play configuration, it is ideal for small to medium-sized, fixed meeting areas such as courtrooms, halls, local business centers.


CCSD-CURD Control unit

Bosch CCSD-CURD Control unit for CCS 1000 D  with recorder and DAFS.

Plug-and-Play functionality

The plug-and-play feature of the Control Unit allows Discussion Devices & system cameras to be conveniently connected to and removed from the system

Web browser Control

Basic & advanced system settings can be easily viewed and configured using a web browser interface in combination with a PC, tablet, or laptop.

Digital Acoustic Feedback Suppression (DAFS)

The built-in Digital Acoustic Feedback Suppression (DAFS) feature suppresses acoustic feedback. This improves speech intelligibility by allowing the speaker volume to be set as loud as required without any risk of acoustic feedback

Discussion Devices

Up to 80 Discussion Devices can be connected to a single Control Unit

Microphone Management

A maximum of four microphones can be selected in the Control Unit.

This can be further extended to 25 microphones in the web browser interface.

Discussion Modes

Open mode, Push to talk (PTT) mode

Override mode, Voice activation mode


Built‑in MP3 recorder with internal memory and USB recording, Built‑in monitor loudspeaker, Sound reinforcement system, Telephone coupler,  External wired or wireless microphone to allow a guest speaker or an audience to participate.

Technical Specifications

Supply voltage Adaptor

100 to 240 VAC, 50/60 Hz

Current Consumption voltage Adaptor

1.9 A (100 VAC) to 1 A 240 (VAC)

DC voltage Control Unit

24 V, 6.0 A

Maximum number of Discussion Devices for Control Unit

(without Extension Unit)

40 Discussion Devices per trunk 80 Discussion Device in total

24 V, Max 5.2 A (short-circuited protected)

Discussion Device loudspeakers volume control

15 steps of 1.5 dB (starting from -10.5 dB)

Limit threshold level to unit

12 dB above nominal level

Gain reduction due to number of open microphones (NOM)


Sample rate

44.1 kHz

Frequency response

30 Hz to 20 kHz

Ethernet speed

1 Gb/s

Nominal input (85 dB SPL)

< 0.5%

Max. input (110 dB SPL)

< 0.5%

XLR nominal microphone input

-56 dBV

XLR maximum microphone input

-26 dBV

RCA nominal input

-24 dBV (+/- 6 dB)

RCA maximum input

+6 dBV


> 93 dBA

Frequency response

30 Hz to 20 kHz



RCA nominal output

-24 dBV (+6/- 24 dB)

RCA maximum output

+6 dBV


> 93 dBA

Frequency response

30 Hz to 20 kHz



Recording/ Playback (bit rate)

64, 96, 128, 256 Kbit/sec

Recording/ Playback (sample frequency)

44.1 kHz

Nominal output

72 dB SPL

Frequency response

200 Hz to 16 kHz (acoustical)

Gain range

Mute -10.5 to +12 dB

SanDisk USB memory stick

Formatted with FAT32 file system.

Maximum size: 128 GB.

Dimensions including feet (H x W x D)

45 x 440 x 200 mm

(1.8 x 17.3 x 7.9 in)

19” wide, 1 RU high

Height of feet

5.5 mm (0.2 in)


Tabletop or 19 “ rack

Material (top and base)

Painted metal

Color (top and base)

Traffic black (RAL 9017) matt- gloss

Rim front panel

Pearl light grey (RAL 9022) matt- gloss


Approx. 3.4 kg (7.5 lb)

Operating temperature

5 ºC to +45 ºC

(+41 ºF to +113 ºF)

Storage and transport temperature

-40 ºC to +70 ºC

(-40 ºF to +158 ºF)

Relative humidity

5% to 98% non-condensing

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