ECLER DARA-4B900

Product overview

The ECLER DARA-4B900 is a high-performance, network-enabled Class D power amplifier for professional audio installations, delivering up to 4 x 900 W RMS at 4 Ω to low impedance loudspeakers or 70 V / 100 V lines, with bridge mode, configured by pairs of channels.

An integrated DSP with an internal 4 x 4 matrix and dual Ethernet ports with an embedded switch give precise audio management and easy integration into scalable networked systems. The amplifier is set up from its embedded web application and is fully compatible with the ECLER PULSO series, so users can control and monitor it from a mobile app or a web interface. Auto standby saves energy, and complete protections (thermal, overload, short-circuit, clip) keep it reliable in fixed installations.

Key features

• 4-channel Class D power amplifier with high-efficiency design
• 4 x 900 W RMS at 4 Ω output power
• 2 Ω, 4 Ω, 8 Ω, 70 V, 100 V and bridge mode, configurable by channel pairs
• 4 balanced analogue inputs with internal 4 x 4 digital matrix
• Integrated DSP with ECLER loudspeaker EQ presets included
• Dual Ethernet ports with integrated switch for daisy-chaining
• Embedded web interface and ECLER PULSO series remote control
• Auto standby function for energy savings
• Protections: thermal, overload, short-circuit, clip
• Safety Euroblock connections and software-lockable front panel

Low and high impedance on the same amplifier

An OUT MODE switch on the rear panel sets each channel pair to 2 Ω, 4 Ω or 8 Ω, to 70 V or 100 V lines, or to 4/8 Ω bridge mode (with the supplied Euroblock jumper). Per channel the DARA-4B900 delivers 550 W at 8 Ω, 900 W at 4 Ω, 1600 W at 2 Ω and 900 W on 70 V or 100 V lines; in bridge mode a channel pair delivers 3200 W at 4 Ω or 1600 W at 8 Ω.

DSP and matrix

Inputs have delay, parametric and graphic EQ and a compressor; outputs add polarity, custom FIR filters and RMS and peak limiters. The matrix routes any input to any output with its own level, and 15 amplifier presets plus 40 speaker presets (22 ECLER and 18 custom) make set-up quick.

Networked control

Two RJ45 ports (100Base-TX) give access to the web application and let several DARA units share one network link by daisy-chaining. 4 GPI ports (0 - 10 V) take wall panels for remote volume, an external mute input reacts to a contact closure, and users and custom control panels can be created with their own permissions.

In the box

• 1 x DARA unit
• 1 x EU power cord and 1 x IEC power cord with UK, US and CN plug adapters
• 6 x Euroblock connectors (4 x 3-pin blue for inputs, 2 x 4-pin green for outputs)
• 2 x Euroblock jumpers
• 4 x desktop feet
• 1 x external mute connector
• 1 x remote volume connector (GPI)
• 1 x 19 inch rack installation hardware
• 1 x First Steps Guide
• 1 x warranty card

ECLER DARA-4B900: frequently asked questions

Can it drive 100 V line loudspeakers?

Yes. Each channel pair can be set to 70 V or 100 V with the rear OUT MODE switch, giving up to 900 W per channel.

Can channels be bridged?

Yes. Bridge mode at 4 Ω or 8 Ω is configured per channel pair; insert the supplied Euroblock jumper first. A bridged pair delivers up to 3200 W at 4 Ω.

How is the amplifier configured?

From its embedded web application, opened in a browser over Ethernet; end users can control it through the ECLER PULSO series app.

Can several amplifiers share one network cable?

Yes. The two RJ45 ports include a switch, so several DARA units can be daisy-chained.

Where can I buy the ECLER DARA-4B900 in India?

The ECLER DARA-4B900 is available from Shivansh Electronics, Kolkata, West Bengal, India, with delivery across India.

Workflow 1: Retail store on 100 V lines

Shops with ceiling loudspeakers in several areas.

Connections

Setup

1. Set the OUT MODE switch of each pair to 100 V before powering up.
2. Route the inputs to the outputs in the web application matrix.
3. Set the output levels and limiters.
4. Lock the front panel.

Tip: Never connect loads below 2 Ω in low impedance mode.

Workflow 2: Restaurant with low impedance speakers

Dining room and bar zones with 8 Ω loudspeakers.

Connections

Setup

1. Set the channel pairs to 8 Ω.
2. Load the ECLER speaker preset of each loudspeaker.
3. Mix music and microphone per zone in the matrix.
4. Assign the front knobs to the zone volumes.

Tip: Speaker presets include ECLER loudspeaker EQ settings.

Workflow 3: Bridged power for a subwoofer

Venues that need more power on one loudspeaker.

Connections

Setup

1. Insert the supplied Euroblock jumper on the output connector.
2. Set the OUT MODE switch of the pair to bridge.
3. Apply crossover filters and limiters in the DSP.
4. Check polarity before switching on.

Tip: A bridged pair delivers up to 3200 W at 4 Ω.

Workflow 4: Wall panel volume control

Meeting rooms and classrooms where staff adjust the volume.

Connections

Setup

1. Wire the panel to the GPI Euroblock (+10 V, control, ground).
2. Assign the GPI to the room output in Knobs and GPI.
3. Choose direct or reverse mode.
4. Test the range.

Tip: GPI cables can run up to 500 m with 0.5 mm² wire.

Workflow 5: Fire alarm muting

Installations that must fall silent on an alarm.

Connections

Setup

1. Wire the contact to the EXT.MUTE port.
2. Assign the affected outputs in the web application.
3. Trigger a test and check the mute LEDs.

Tip: Closed contact = mute on; open = mute off.

Workflow 6: Several amplifiers on one network

Larger sites with a rack of DARA amplifiers.

Connections

Setup

1. Connect the first unit to the network.
2. Daisy-chain the others through the second RJ45 port.
3. Open each unit by IP address or host name.
4. Update firmware and give each unit a name.

Tip: Units work in DHCP mode by default; hold RESET for 10 s to restore network settings.