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DARA-4B150
CDARA4B150
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4x150 W RMS @ 4 Ω | LoZ&HiZ | DSP | Class D
DARA-4B150 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 × 150 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-4B150 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.
- Installation options
- Rack 19" installation & desktop
- 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
- Included accessories
- EU power cord, UK,US and CN power cord adapters, IEC Power Cord, Remote Volume connector (GPI), External Mute connector x4 Euroblock 3-pin connectors (Inputs), x2 Euroblock 4-pin connectors (Outputs), Warranty Card, Rear Rack Kit, 3M rubber foot (4pcs)
- Dimensions
- 484 x 44 x 296.6 mm / 19 x 1.73 x 11.67 in. (WxHxD)
484 x 44 x 296.6 mm / 19 x 1.73 x 11.67 in. (WxHxD) - Weight
- 4.95 kg / 10.91 lb
4.95 kg / 10.91 lb - Shipping dimensions
- 590 x 80 x 474 mm / 23.23 x 3.15 x 18.66 in. (WxHxD)
590 x 80 x 474 mm / 23.23 x 3.15 x 18.66 in. (WxHxD) - Shipping weight
- 7.60 kg / 16.76 lb
7.60 kg / 16.76 lb - Processor
- 32 bits
- Sampling rate
- 48 kHz
- Resolution
- 24 bits
- Frequency response
- 15Hz - 22kHz (-3dB, 1W any load)
- Input sensitivity
- 0dBV
2.21dBu
1Vrms - CMRR
- 62,2 dB
- Crosstalk
- 80 dB (1kHz)
- Programing and control
- Embedded web application
- GPIs
- x4 GPIs (0-10V)
- AC mains requirement
- 100-240 V @ 50-60Hz (±10%)
- AC mains connector
- IEC C14 inlet
- Power supply
- Universal, regulated SMPS with PFC
- SNR
- 95 dBA
- Output connection type
- 2-pin Euroblock. Pitch: 5,08 mm
- Power
- 4,3 W
22,7 VA
4,3 W
22,7 VA
5 W
60 VA
51,3 W
88 VA
51,3 W
88 VA
52 W
94 VA
52 W
94 VA
158,9 W
176 VA
158,9 W
176 VA
173 W
252 VA
273,6 W
293 VA
273,6 W
293 VA
283,5 W
375 VA - Number of output channels
- 4
- Number of input channels
- 4
- Input connection type
- 3-pin Euroblock, balanced, pitch 3,5 mm
- Max output power @ 100V
- 150 W
- Max output power @ 70V
- 150 W
- Input impedance
- 20k
- Max input level
- +23 dBu
- THD + Noise
- 0,1% ( @1kHz, from 0,1W to Full Power)
- Cooling
- 3 fans
- AD converters
- 24 Bit Tandem™ @ 48 kHz
115 dB-A Dynamic Range - 0.0018% THD+N
24 Bit Tandem™ @ 48 kHz
115 dB-A Dynamic Range - 0.0018% THD+N - DA converters
- 24 Bit Tandem™ @ 48 kHz
120 dB-A Dynamic Range - 0.0018% THD+N
24 Bit Tandem™ @ 48 kHz
120 dB-A Dynamic Range - 0.0018% 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
- Maximum fan noise
- 57 dBA
- Ethernet
- Ethernet Base-Tx 100Mb CAT5 up to 100m
Secondary RJ-45 port for Daisy-Chaining - Output configuration
- 2Ω, 4Ω, 8Ω, 100V, 70V and 4/8Ω in Bridge Mode
- Input configuration
- Digital Matrix 4 In x 4 Out
- Efficiency
- 70%
70% - AC protection
- Yes
- DC protection
- Yes
- Short-circuit protection
- Yes
- Clip limiter
- Yes
- Thermal protection
- Yes
- External MUTE
- Yes, contact
- Attenuators
- Assignable front panel knobs
- Output settings
- 2Ω/4Ω/8Ω/70V/100V/Bridge Mode output selection by pair of channels
- Signal Present
- SIGNAL LED (Green) per channel
- Cliping
- CLIP LED (Red) per channel
- Standby
- STANDBY (Orange) per channel
- Auto standby time
- 90 seconds
- Auto standby threshold
- -40dB
- Dynamic range
- 118 dB
118 dB - Amplification technology
- Class D
- Power ON/OFF
- Front panel switch
- Thermal
- TH/PROT LED (Red) per channel
- Protect
- TH/PROT LED (Red) per channel
- Voltage gain
- 30.8 dB
- Power factor correction
- 0,92
- HF protection
- Yes
- Output mode settings
- Back panel Dipswitch by pairs of channels
BRIDGE/2Ω/4Ω/8Ω/70V/100V - Limit
- TH/PROT LED (Red)
- Data
- DATA LED (White) per unit
- On
- ON LED (Green) per unit
- 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
- Energy saving
- Auto standby function selectable
- Current Draw
- 0,19 Arms
0,19 Arms
0,27 Arms
0,78 Arms
0,78 Arms
0,82 Arms
0,82 Arms
1,07 Arms
1,47 Arms
1,63 Arms
2,45 Arms
2,45 Arms - Thermal Loss
- 3,7 kcal/h
14,7 BTU/h
3,7 kcal/h
14,7 BTU/h
4,3 kcal/h
17,1 BTU/h
4,3 kcal/h
17,1 BTU/h
44,1 kcal/h
175,1 BTU/h
44,1 kcal/h
175,1 BTU/h
44,7 kcal/h
177,5 BTU/h
44,7 kcal/h
177,5 BTU/h
84,3 kcal/h
334,5 BTU/h
84,3 kcal/h
334,5 BTU/h
106,3 kcal/h
421,8 BTU/h
106,3 kcal/h
421,8 BTU/h
114,8 kcal/h
455,6 BTU/h - Auto standby function
- Settings by embedded web application
- RUN/SLEEP mode
- Auto standby function
Forced standby
(Settings by embedded web application) - Mute
- MUTE LED (White) per channel
Services and facilities implemented
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SYSTEM
| Processor |
32 bits |
|---|---|
| Number of input channels |
4 |
PHYSICAL
| Installation options |
Rack 19" installation & desktop |
|---|---|
| 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 |
| Included accessories |
EU power cord, UK,US and CN power cord adapters, IEC Power Cord, Remote Volume connector (GPI), External Mute connector x4 Euroblock 3-pin connectors (Inputs), x2 Euroblock 4-pin connectors (Outputs), Warranty Card, Rear Rack Kit, 3M rubber foot (4pcs) |
| Dimensions |
484 x 44 x 296.6 mm / 19 x 1.73 x 11.67 in. (WxHxD) 484 x 44 x 296.6 mm / 19 x 1.73 x 11.67 in. (WxHxD) |
| Weight |
4.95 kg / 10.91 lb 4.95 kg / 10.91 lb |
| Shipping dimensions |
590 x 80 x 474 mm / 23.23 x 3.15 x 18.66 in. (WxHxD) 590 x 80 x 474 mm / 23.23 x 3.15 x 18.66 in. (WxHxD) |
| Shipping weight |
7.60 kg / 16.76 lb 7.60 kg / 16.76 lb |
POWERED
| Power |
283,5 W
375 VA 173 W 252 VA 52 W 94 VA 52 W 94 VA 5 W 60 VA 273,6 W 293 VA 273,6 W 293 VA 158,9 W 176 VA 158,9 W 176 VA 51,3 W 88 VA 51,3 W 88 VA 4,3 W 22,7 VA 4,3 W 22,7 VA |
|---|
ELECTRICAL
| AC mains requirement |
100-240 V @ 50-60Hz (±10%) |
|---|---|
| AC mains connector |
IEC C14 inlet |
| Power supply |
Universal, regulated SMPS with PFC |
| Power factor correction |
0,92 |
AUDIO CONVERTERS
| Sampling rate |
48 kHz |
|---|---|
| Latency |
1,5 ms |
| Dynamic range |
118 dB 118 dB |
ANALOGUE AUDIO OUTPUT PORTS
| Crosstalk |
80 dB (1kHz) |
|---|
CONNECTIVITY
| Programing and control |
Embedded web application |
|---|---|
| Ethernet |
Ethernet Base-Tx 100Mb CAT5 up to 100m
Secondary RJ-45 port for Daisy-Chaining |
REMOTE CONTROL CONNECTIONS
| GPIs |
x4 GPIs (0-10V) |
|---|
CHANNELS
| Number of output channels |
4 |
|---|---|
| Output configuration |
2Ω, 4Ω, 8Ω, 100V, 70V and 4/8Ω in Bridge Mode |
| Input configuration |
Digital Matrix 4 In x 4 Out |
SIGNAL
| SNR |
95 dBA |
|---|---|
| Voltage gain |
30.8 dB |
TECHNOLOGIES
| Cooling |
3 fans |
|---|---|
| Maximum fan noise |
57 dBA |
| Efficiency |
70% 70% |
| Amplification technology |
Class D |
| Energy saving |
Auto standby function selectable |
PROTECTIONS
| AC protection |
Yes |
|---|---|
| DC protection |
Yes |
| Short-circuit protection |
Yes |
| Clip limiter |
Yes |
| Thermal protection |
Yes |
| HF protection |
Yes |
SETTINGS
| Output settings |
2Ω/4Ω/8Ω/70V/100V/Bridge Mode output selection by pair of channels |
|---|---|
| Auto standby function |
Settings by embedded web application |
MONITORING
| Signal Present |
SIGNAL LED (Green) per channel |
|---|---|
| Cliping |
CLIP LED (Red) per channel |
| Standby |
STANDBY (Orange) per channel |
| Thermal |
TH/PROT LED (Red) per channel |
| Protect |
TH/PROT LED (Red) per channel |
| Limit |
TH/PROT LED (Red) |
| Data |
DATA LED (White) per unit |
| On |
ON LED (Green) per unit |
| Mute |
MUTE LED (White) per channel |
DSP
| AD converters |
24 Bit Tandem™ @ 48 kHz
115 dB-A Dynamic Range - 0.0018% THD+N 24 Bit Tandem™ @ 48 kHz 115 dB-A Dynamic Range - 0.0018% THD+N |
|---|---|
| DA converters |
24 Bit Tandem™ @ 48 kHz
120 dB-A Dynamic Range - 0.0018% THD+N 24 Bit Tandem™ @ 48 kHz 120 dB-A Dynamic Range - 0.0018% THD+N |
| Sample rate converter |
24 bits @ 48 kHz |
| Internal precision |
32 bits floating point |
| 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 |
ANALOGUE AUDIO INPUTS
| Input sensitivity |
0dBV
2.21dBu
1Vrms |
|---|
CONTROL CONNECTIVITY
| External MUTE |
Yes, contact |
|---|
MONITORING AND CONTROL
| Auto standby time |
90 seconds |
|---|---|
| Auto standby threshold |
-40dB |
LINE INPUTS
| CMRR |
62,2 dB |
|---|---|
| Input connection type |
3-pin Euroblock, balanced, pitch 3,5 mm |
| Input impedance |
20k |
| Max input level |
+23 dBu |
LINE OUTPUTS
| Frequency response |
15Hz - 22kHz (-3dB, 1W any load) |
|---|---|
| Output connection type |
2-pin Euroblock. Pitch: 5,08 mm |
| THD + Noise |
0,1% ( @1kHz, from 0,1W to Full Power) |
SCREEN/DISPLAY
| Resolution |
24 bits |
|---|
LOCAL CONTROL
| Attenuators |
Assignable front panel knobs |
|---|---|
| Power ON/OFF |
Front panel switch |
| 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) |
OUTPUT POWER - All channels driven @ 1%THD
| Max output power @ 100V |
150 W |
|---|---|
| Max output power @ 70V |
150 W |
POWER & HEAT @120VAC - STANDBY/SLEEP MODE
| Current Draw |
1,07 Arms 1,63 Arms 0,78 Arms 0,78 Arms 0,27 Arms 2,45 Arms 2,45 Arms 1,47 Arms 0,82 Arms 0,82 Arms 0,19 Arms 0,19 Arms |
|---|---|
| Thermal Loss |
114,8 kcal/h
455,6 BTU/h 84,3 kcal/h 334,5 BTU/h 84,3 kcal/h 334,5 BTU/h 44,7 kcal/h 177,5 BTU/h 44,7 kcal/h 177,5 BTU/h 4,3 kcal/h 17,1 BTU/h 4,3 kcal/h 17,1 BTU/h 106,3 kcal/h 421,8 BTU/h 106,3 kcal/h 421,8 BTU/h 44,1 kcal/h 175,1 BTU/h 44,1 kcal/h 175,1 BTU/h 3,7 kcal/h 14,7 BTU/h 3,7 kcal/h 14,7 BTU/h |
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