DARA-4B300
High-performance, network-enabled Class D power amplifier for professional audio installations, delivering up to 4 x 300 W RMS @ 4 ohm, supporting Lo-Z and Hi-Z (70V/100V) loudspeaker systems plus Bridge mode.
Main features
- 4-channel Class D power amplifier with high-efficiency design
- 4 x 300 W RMS @ 4 ohm output power
- Supports 2 ohm, 4 ohm, 8 ohm, 70V, 100V and Bridge mode (configurable by channel pairs)
- 4 analogue balanced inputs with internal 4x4 digital matrix
- Integrated DSP for advanced audio processing and system optimization
- Ecler loudspeaker EQ presets included
- Dual Ethernet ports with integrated switch for network daisy-chaining
- Remote control and configuration via PULSO Series (Android/iOS App)
- Embedded web interface for setup, monitoring, and control
- Auto Standby function for energy savings
- Comprehensive protection systems (thermal, overload, short-circuit, clip)
- Safety Euroblock connections for secure wiring
- Software-lockable front panel to prevent unauthorized access
Technical specifications
- Number of output channels: 4
- Output connection type: 2-pin Euroblock, pitch 5.08mm
- Output configuration: 2 ohm/4 ohm/8 ohm/100V/70V and 4/8 ohm Bridge Mode
- Number of input channels: 4
- Input connection type: 3-pin Euroblock, balanced, pitch 3.5mm
- Input configuration: Digital Matrix 4 In x 4 Out
- Max output power @8 ohm (all channels driven): 300 W
- Max output power @4 ohm: 300 W
- Max output power @2 ohm: 300 W
- Max output power @4 ohm bridge: 600 W
- Max output power @8 ohm bridge: 600 W
- Max output power @100V: 300 W
- Max output power @70V: 300 W
- Voltage gain: 33.8 dB
- Input sensitivity: 0dBV/2.21dBu/1Vrms
- Input impedance: 20k
- Max input level: +23 dBu
- Frequency response: 15Hz-22kHz (-3dB, 1W any load)
- THD+Noise: <0.1%
- SNR: 97 dBA
- Crosstalk: >80 dB (1kHz)
- CMRR: 73 dB
- Power supply: Universal, regulated SMPS with PFC
- AC mains requirement: 100-240V @ 50-60Hz
- Power factor correction: >0.81
- AC mains connector: IEC C14 inlet
- Power @1/4 power 230VAC: 473W/605VA
- Power @1/8 power 230VAC: 276.3W/293VA
- Power idle 230VAC: 54.3W/140VA
- Power standby 230VAC: 5W/60VA
- Amplification technology: Class D
- Efficiency: 76%
- Cooling: 3 fans
- Max fan noise: 57 dBA
- AD converters: 24 Bit Tandem @48kHz, 115dB-A Dynamic Range
- DA converters: 24 Bit Tandem @48kHz, 120dB-A Dynamic Range
- Internal precision: 32 bits floating point
- Latency: 1.5 ms
- Memory/Presets: 15 amplifier presets, 40 speaker presets
- Delay: 20ms input + 300ms output
- Equalizer: Custom FIR, Parametric IIR (Peaking, Low/High Shelf, AllPass, General/Butterworth/Bessel Low/High)
- Limiters: RMS and Peak voltage limiter
- Digital processing: 32 bits
- GPIs: x4 (0-10V)
- External MUTE: Yes, contact
- Ethernet: Base-Tx 100Mb CAT5 up to 100m + secondary RJ-45 for daisy-chaining
- Operating temperature: -20 to 40°C
- Operating humidity: 10-90% RH
- Installation options: Rack 19" & desktop
- Dimensions: 484 x 44 x 296.6 mm
- Weight: 4.95 kg
- Shipping weight: 7.60 kg