AKG CS3 DU 30 - Delegate Unit with 30cm Gooseneck Microphone for CS3 Conference Systems

AKG CS3 DU 30 - Delegate Unit with 30cm Gooseneck Microphone for CS3 Conference Systems

The AKG CS3 DU 30 is a delegate unit for the AKG CS3 conference system that stands out for its ease of use, robustness, and professional audio quality. It incorporates a 30 cm condenser microphone ( CS321 module) with a cardioid polar pattern and an LED light ring that indicates the speaking status. The station integrates a 2 W speaker for local monitoring and two 3.5 mm headphone outputs so that up to two participants can listen with independent volume control. It is powered directly from the base unit via 24 V DC and can be daisy-chained via 8-pin DIN , simplifying installation in meeting rooms, auditoriums, or institutional locations. Its audio specifications — SNR > 80 dB , 50 Hz–20 kHz response , and THD < 0.1 % — ensure clear, natural voice reproduction. When the microphone is activated, the system automatically mutes the built-in speaker to avoid feedback and improve intelligibility.

Main features

• 30cm microphone (CS321) with cardioid pattern , status LED ring and DAM+ connector with locking nut.
• Built-in 2W speaker with auto-mute when microphone is opened.
• 2 x 3.5mm headphone outputs ( 9 dBu , 8–32 Ω ) for up to two delegates per seat.
• Audio performance : SNR > 80 dB, 50 Hz–20 kHz response, THD < 0.1 % and crosstalk > 80 dB.
• System connectivity : 8-pin DIN bus with screw connection; 1.9 m fixed connection cable.
• Power supply : 24 V DC supplied by the base unit; consumption 3 W.
• Controls : Push-to-Talk (PTT) with queue/wait list management and LED indicator; headphone volume control.
• Compact format : 170 × 143 × 63 mm (without gooseneck); weight approx. 1 kg .
• Environment : 0°C to 40°C; up to 95% RH (non-condensing).

Product benefits

• Consistent voice clarity thanks to the cardioid capsule and low system distortion, with less ambient noise captured.
• Intuitive operation with a word button and light indication, minimizing interruptions and overlaps.
• Personalized listening with two headphone jacks, useful for sharing a headset or for hearing assistance.
• Quick and tidy installation by feeding from the base and chaining by 8-pin DIN.
• Scalability : The system base can manage multiple seats in the same room while maintaining audio stability.

Use cases

• Corporate boardrooms and boards of directors.
• Municipal plenary sessions, local chambers and public bodies.
• Universities and training centers for courts, defense attorneys, and panels.
• Hotels and convention centers with modular rooms.

Frequently Asked Questions

Does it require a base unit? Yes, it works with the CS3 BU (not included), which distributes power and signal to the other stations.

How many stations does the system support? The system's base unit can manage up to 60 stations depending on the topology and cabling.

Can I change the microphone? Yes, the DU 30 uses a DAM+ interface and is compatible with the CS521 microphone (50 cm) if a longer range is required.

Description for projects

AKG CS3 DU 30 delegate unit with CS321 gooseneck microphone (30 cm, cardioid), integrated 2 W speaker, two 3.5 mm headphone outputs (9 dBu, 8–32 Ω), system specifications: response 50 Hz–20 kHz, SNR > 80 dB, THD < 0.1 %, crosstalk > 80 dB; 8-pin DIN system connection, DAM+ microphone connector with locking nut, fixed cable 1.9 m; power supply 24 V DC from base, consumption 3 W; dimensions (without gooseneck) 170 × 143 × 63 mm; weight approx. 1 kg; operation 0–40 °C, up to 95 % RH non-condensing.