DARA series / Networkable Amplifiers

DARA-4B900

Name: Ecler DARA-4B900
Brand: Ecler
SKU: DARA-4B900

4x900 W RMS @ 4 Ω | LoZ&HiZ | DSP | Class D

DARA-4B900 is a high‑performance, network‑enabled Class D power amplifier developed for professional audio installations requiring flexibility, efficiency, and dependable system control. Delivering up to 4 × 900 W RMS @ 4 Ω, it supports both low‑ and high‑impedance loudspeaker systems (70 V / 100 V) as well as Bridge mode, configurable by pairs of channels to adapt to a wide range of installation needs. Equipped with an integrated DSP with internal matrix and dual Ethernet ports with an embedded switch, the DARA-4B900 enables precise audio management and seamless integration into scalable networked systems. Full compatibility with the PULSO Series allows remote control and monitoring via mobile apps or web interface, making it an efficient and reliable solution for modern fixed installations across multiple applications.

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Key features

014‑channel Class D power amplifier with high‑efficiency design.

024 × 900 W RMS @ 4 Ω output power.

03Supports 2 Ω, 4 Ω, 8 Ω, 70 V, 100 V and Bridge mode (configurable by channel pairs).

044 analogue balanced inputs with internal 4 × 4 digital matrix.

05Integrated DSP for advanced audio processing and system optimization.

06Ecler loudspeaker EQ presets included.

07Dual Ethernet ports with integrated switch for network daisy‑chaining.

08Remote control and configuration via PULSO Series (Android / iOS App).

09Embedded web interface for setup, monitoring, and control.

10Auto Standby function for energy savings.

11Comprehensive protection systems (thermal, overload, short‑circuit, clip).

12Safety Euroblock connections for secure wiring.

13Software‑lockable front panel to prevent unauthorized access.

CHANNELS

Number of output channels: 4
Output connection type: 2-pin Euroblock. Pitch: 5,08 mm
Output configuration: 2Ω, 4Ω, 8Ω, 100V, 70V and 4/8Ω in Bridge Mode
Number of input channels: 4
Input connection type: 3-pin Euroblock, balanced, pitch 3,5 mm
Input configuration: Digital Matrix 4 In x 4 Out

OUTPUT POWER - All channels driven @1kHz @CF9dB @ 1%THD

Max output power @ 8Ω: 550 W
Max output power @ 4Ω: 900 W
Max output power @ 2Ω: 1600 W
Max output power @ 4Ω bridge mode: 3200 W
Max output power @ 8Ω bridge mode: 1600 W
Max output power @ 100V: 900 W
Max output power @ 70V: 900 W

OUTPUT POWER - Single channel driven @1kHz @CF9dB @ 1%THD

Max output power @ 8Ω: 550 W
Max output power @ 4Ω: 900 W
Max output power @ 2Ω: 1600 W
Max output power @ 4Ω bridge mode: 3200 W
Max output power @ 8Ω bridge mode: 1600 W
Max output power @ 100V: 900 W
Max output power @ 70V: 900 W

SIGNAL

Voltage gain: 36dB
Input sensitivity: 0 dBV 2,21 dBu 1 Vrms
Input impedance: 20kΩ balanced
Max input level: +20,8dBV 23 dBu
Frequency response: 15Hz - 22kHz (-3dB, 1W any load)
THD + Noise: <0,1% ( @1kHz, from 0,1W to Full Power)
SNR: 97,8 dBa
Crosstalk: >90 dB (@1kHz)
CMRR: > 52 Typ (from 20Hz to 20kHz)

ELECTRICAL

Power supply: Universal, regulated SMPS with PFC
AC mains requirement: 100-240 V @ 50-60Hz (±10%)
Power factor correction: > 0,96
AC mains connector: IEC C14 inlet

POWER & HEAT @230VAC - 1/4 POWER, @ 4Ω (all channels driven)

Power: 1236 W 1300 VA
Current Draw: 5,7 Arms
Thermal Loss: 289 kcal/h 1146 BTU/h

POWER & HEAT @230VAC - 1/8 POWER, @ 4Ω (all channels driven)

Power: 692,5 W 744 VA
Current Draw: 3,25 Arms
Thermal Loss: 208,6 kcal/h 827,7 BTU/h

POWER & HEAT @230VAC - IDLE

Power: 100 W 163 VA
Current Draw: 0,71 Arms
Thermal Loss: 86 kcal/h 341,3 BTU/h

POWER & HEAT @230VAC - STANDBY/SLEEP MODE

Power: 4,8 W 81 VA
Current Draw: 0,35
Thermal Loss: 4,1 kcal/h 16,4 BTU/h

POWER & HEAT @120VAC - 1/4 POWER, @ 4Ω (all channels driven)

Power: 1321 W 1337 VA
Current Draw: 11,45 Arms
Thermal Loss: 362,1 kcal/h 1436,9 BTU/h

POWER & HEAT @120VAC - 1/8 POWER, @ 4Ω (all channels driven)

Power: 725 W 739 VA
Current Draw: 6,27 Arms
Thermal Loss: 236,5 kcal/h

POWER & HEAT @120VAC - IDLE

Power: 97,6 W 118 VA
Current Draw: 0,97 Arms
Thermal Loss: 83 kcal/h 329,4 BTU/h

POWER & HEAT @120VAC - STANDBY/SLEEP MODE

Power: 4,2 W 27,3 VA
Current Draw: 0,23 Arms
Thermal Loss: 3,6 kcal/h 14,3 BTU/h

TECHNOLOGIES

Amplification technology: Class D
Energy saving: Auto standby function selectable
Efficiency: 74% (1/4 POWER, @ 4Ω)
Cooling: 2 fans
Maximum fan noise: 57 dBA

DSP

AD converters: 24 Bit Tandem™ @ 48 kHz 105 dB-A Dynamic Range - 0.0018% THD+N
DA converters: 24 Bit Tandem™ @ 48 kHz 120 dB Dynamic Range - 0.001% THD+N
Sample rate converter: 24 bits @ 48 kHz
Internal precision: 32 bits floating point
Latency: 1,5 ms
Memory/Presets: 15 amplifiers presets 40 Speakers presets (22 Ecler presets + 18 Custom presets)
Delay: 20 ms (input) + 300 ms (output) for time alignment
Equalizer: Custom FIR, Parametric IIR: Peaking, Low Shelf, High Shelf, AllPass 1st, AllPass 2nd, General Low, General High, Butterworth Low, Butterworth High, Bessel Low, Bessel High
Limiters: RMS and Peak voltage limiter
Digital processing: 32 bits
Inputs processing: Delay, Parametric and Graphic EQ, Compressor
Outputs processing: Delay, Parametric and Graphic EQ, Polarity, Compressor, FIR filters, RMS and Peak Limiter
Others: Presets management, Panels and Users, Internal matrix, Linking and Stereo options, Selectable Auto-standby, Panel Operating Range, Knobs and GPI Matrix, Custom and Ecler speakers settings, Network Parameters, Finder, Remote control and configuration via PULSO Series (Android / iOS App)

PROTECTIONS

AC protection: Yes
DC protection: Yes
HF protection: Yes
Short-circuit protection: Yes
Clip limiter: Yes
Thermal protection: Yes

REMOTE CONTROL CONNECTIONS

GPIs: x4 GPIs (0-10V)
External MUTE: Yes, contact

LOCAL CONTROL

Attenuators: Assignable front panel knobs
Output mode settings: Back panel Dipswitch by pairs of channels BRIDGE/2Ω/4Ω/8Ω/70V/100V
RUN/SLEEP mode: Auto standby function Forced standby (Settings by embedded web application)
Power ON/OFF: Front panel switch

SETTINGS

Attenuators: Assignable front panel knobs
Output settings: 2Ω/4Ω/8Ω/70V/100V/Bridge Mode output selection by pair of channels
Auto standby function: Settings by embedded web application
Auto standby threshold: -40dB
Auto standby time: 90 seconds
Power ON/OFF: Front panel switch

CONNECTIVITY

Ethernet: Ethernet Base-Tx 100Mb CAT5 up to 100m Secondary RJ-45 port for Daisy-Chaining
Programing and control: Embedded web application

MONITORING

Signal Present: SIGNAL LED (Green) per channel
Cliping: CLIP LED (Red) per channel
Protect: TH/PROT LED (Red) per channel
Standby: STANDBY (Orange) per channel
Mute: MUTE LED (White) per channel
Limit: TH/PROT LED (Red)
Thermal: TH/PROT LED (Red) per channel
Data: DATA LED (White) per unit
On: ON LED (Green) per unit

DIGITAL ENGINE

Processor: 32 bits

AUDIO CONVERTERS

Sampling rate: 48 kHz
Resolution: 24 bits
Dynamic range: 112 dB

PHYSICAL

Operating temperature: -20⁰ to 40⁰ C -4⁰ to 104⁰ F
Operating humidity: 10-90% RH, non-condensing
Storage temperature: -40⁰ to 70⁰ C -40⁰ to 158⁰ F
Storage humidity: 10-95% RH, non-condensing
Installation options: Rack 19" installation & desktop
Included accessories: 1 x EU & IEC power cords, UK,US & CN plug adapters, 4x Desktop feet, 1x Rack 19" installation hardware, 1 x Remote Volume connector (GPI), 1 x External Mute connector, 6x Euroblock connectors (4x 3-pin blue for inputs and 2x 4-pin green for outputs), 2x Euroblock jumper.
Dimensions: 482.6 x 44 x 414 mm / 19 x 1.73 x 16.30 in. (WxHxD)
Weight: 7,65 kg / 16,87 lb
Shipping dimensions: 590 x 80 x 590 mm / 23.23 x 3.15 x 23.23 in. (WxHxD)
Shipping weight: 10.74 kg / 23.68 lb

Compatible accessories

PULSO-10

Digital Controls & Panels

10“ Control Touch Panel

PULSO-4

Digital Controls & Panels

4“ Control Touch Panel

PULSO-6

Digital Controls & Panels

5.5“ Control Touch Panel