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Ecler HALO-4B300 — image 1
HALO series / Networkable Amplifiers

HALO-4B300

4 Channels Digital Amplifier | 300W | DSP | Player | HiZ/LoZ | Dante®/AES67

HALO-4B300 is a 4-channel Class D amplifier with networked DSP, delivering 4 × 300 W in low-impedance mode at 4 Ω or 8 Ω. Its four output channels can be bridged to drive high-impedance 70 V or 100 V loudspeaker lines. It features 4 balanced analogue inputs, 4 Dante®/AES67 digital inputs and outputs, 2 balanced auxiliary outputs, and a flexible 4 × 6 digital matrix. Its comprehensive DSP includes input and output parametric equalization, graphic output equalization, crossovers, delay, and configurable peak and RMS limiters. The built-in web application provides intuitive configuration, control and monitoring of the amplifier. Two Ethernet ports with integrated switch functionality allow network daisy-chaining and provide access to control, Dante®/AES67 audio transport and remote management. HALO-4B300 also supports customizable user control panels and integration with EclerCLOUD and the PULSO digital control panel series.

Key features

014 amplified outputs.
024 Dante®/AES67 outputs (2 flows) and 4 Dante®/AES67 inputs (2 flows).
034 analogue inputs.
042 auxiliary outputs.
052 Ethernet ports for Dante®/ AES67 and Control management.
06MicroSD/SDHC audio player.
07Internal matrix and signal processing.
08Web application for device configuration.
09Event control and scheduling for automation.
10Customizable user panels.
11Remote control user app for iOS/Android/Web.
12Ultra-low power consumption mode.
13Compatible with the Remote Monitoring & Control Platform EclerCLOUD.

CHANNELS

Number of output channels
4
Output connection type
2-pin Euroblock. Pitch: 7,62 mm
Output configuration
4 Lo-Z connections, bridgeable for Hi-Z
Number of input channels
4
Input connection type
3-pin Euroblock, balanced, pitch 3,5 mm
Number of digital inputs
4
Input configuration
Digital matrix 4 in x 6 out

AUXILIAR OUTPUTS

Number of auxiliar outputs
2
Auxiliar output connection type
3-pin Euroblock, balanced, pitch 3,5 mm

DIGITAL OUTPUTS

Number of digital outputs
4
Digital output connection type
Ethernet, managed via Dante®/AES67 Controller

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

Max output power @ 8Ω
300 W
Max output power @ 4Ω
300 W
Max output power @ 8Ω bridge mode
600 W
Max output power @ 100V bridge mode
550 W
Max output power @ 70V bridge mode
600 W

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

Max output power @ 8Ω
300 W
Max output power @ 4Ω
300 W
Max output power @ 8Ω bridge mode
600 W
Max output power @ 100V bridge mode
550 W
Max output power @ 70V bridge mode
600 W

OUTPUT POWER - All channels driven @ 1%THD

Max output power @ 8Ω
300 W
Max output power @ 4Ω
300 W
Max output power @ 8Ω bridge mode
600 W
Max output power @ 100V bridge mode
550 W
Max output power @ 70V bridge mode
600 W

OUTPUT POWER - Single channel driven

Max output power @ 8Ω
300 W
Max output power @ 4Ω
300 W
Max output power @ 8Ω bridge mode
600 W
Max output power @ 100V bridge mode
550 W
Max output power @ 70V bridge mode
600 W

SIGNAL

Voltage gain
28 to 40 dBV 30,2 to 42,2 dBu
Input sensitivity
0dBV to +12dBV
Input impedance
>5kΩ Single Ended >10kΩ Differential Pair
Max input level
+18 dBV +20,2 dBu
Frequency response
20Hz - 25kHz
THD + Noise
< 0,1 % 0,03 Typical @ 1kHz, from 0,1W to Full Power
SNR
>85 dB
Crosstalk
>80 dB
CMRR
>65 dB Typical
Damping factor
>500 @ 8Ω, from 20Hz to 1kHz

ELECTRICAL

Power supply
Universal, regulated SMPS with PFC
AC mains requirement
100-240 V @ 50-60Hz (±10%)
Power factor correction
> 0,8 (Total Output Power > 300W)
AC mains connector
IEC C14 inlet

POWER CONSUMPTION

Power Consumption (1/8 POWER, @ 4Ω all channels driven)
224 W 314 VA
Power Consumption (IDLE)
32 W 76 VA
Power Consumption (STBY/SLEEP)
12 W 32 VA

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

Power
405 W 506 VA
Current Draw
2,3 Arms
Thermal Loss
358 BTU/h 90 kcal/h

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

Power
224 W 314 VA
Current Draw
1,4 Arms
Thermal Loss
252 BTU/h 63 kcal/h

POWER & HEAT @230VAC - IDLE

Power
32 W 76 VA
Current Draw
0,33 Arms
Thermal Loss
109 BTU/h 28 kcal/h

POWER & HEAT @230VAC - STANDBY/SLEEP MODE

Power
12 W 32 VA
Current Draw
0,14 Arms
Thermal Loss
41 BTU/h 10 kcal/h

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

Power
407 W 440 VA
Current Draw
3,6 Arms
Thermal Loss
365 BTU/h 92 kcal/h

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

Power
225 W 252 VA
Current Draw
2,1 Arms
Thermal Loss
256 BTU/h 65 kcal/h

POWER & HEAT @120VAC - IDLE

Power
30 W 58 VA
Current Draw
0,5 Arms
Thermal Loss
102 BTU/h 26 kcal/h

POWER & HEAT @120VAC - STANDBY/SLEEP MODE

Power
12 W 24 VA
Current Draw
0,2 Arms
Thermal Loss
41 BTU/h 10 kcal/h

TECHNOLOGIES

Amplification technology
Class D
Energy saving
Auto standby function programmable per channel Sleep Mode function selectable
Efficiency
74% (1/4 POWER, @ 4Ω, 230VAC IN)
Cooling
Fan
Maximum fan noise
49 dBA (Maximum acoustical noise @1m)

DSP

AD converters
32 Bit @ 48 kHz - AKM 111 dB Dynamic Range, -103 dB THD+N
DA converters
32 Bit @ 48 kHz - AKM 115 dB Dynamic Range, -107 dB THD+N
Sample rate converter
48 kHz
Internal precision
32 / 64 bit floating point
Latency
5,6 ms
Memory/Presets
20 presets
Delay
Up to 1s at outputs
Equalizer
Graphic EQ - 8 bands at Outputs Parametric EQ - 12 bands both Inputs and Outputs
Crossover
With Parametric EQ
Limiters
Output Peak and RMS Limiter, configurable by user
Inputs processing
PEQ
Outputs processing
PEQ, GEQ, Delay, Limiters

PROTECTIONS

DC protection
Yes
HF protection
Yes
Short-circuit protection
Yes
Clip limiter
Yes
Long term limiter
Yes
Thermal protection
Yes

REMOTE CONTROL CONNECTIONS

ON / OFF
No
GPIs
x4 GPIs (0-12V)
External MUTE
Yes, contact

LOCAL CONTROL

Attenuators
Programmable Front panel knobs
Output mode settings
Output mode selection per channel in Lo-Z modes: 4Ω, 8Ω. Output mode selection per pair of channels in Hi-Z modes (bridge): 100V, 70V, 8Ω BR
RUN/SLEEP mode
Yes, front panel push-button
Power ON/OFF
Yes, back panel switch

SETTINGS

Filters
20/35/50/70 Hz, high pass filter selectable per output Fixed 15Hz 3rd order Butterworth
Output settings
Lo - Z 4Ω / 8Ω configurable each channel Hi - Z 8Ω / 70V / 100V configurable bridged pair
Gain
28 to 40 dBV 30,2 to 42,2 dBu
Auto standby function
Yes, configurable by user
Auto standby threshold
-30dB to -80dB in -10dB steps
Auto standby time
30s to 1h, configurable via steps
Power ON/OFF
Yes, front panel switch

CONNECTIVITY

Ethernet
Ethernet Base-Tx 10/100/1000Mb Auto X-Over 2 Ports Ethernet Switch capability
DANTE Protocol
Dante®/AES67 4x Tx / 4x Rx channels (2/2 flows)
Programing and control
Embedded web application

MONITORING

Signal Present
SP/CLIP LED (Green - Orange - Red) per channel
Cliping
SP/CLIP LED (Green - Orange - Red) per channel
Protect
PROT LED (Red) per channel
Standby / Mute
MUTE / STBY LED (Red, Orange) per channel
Thermal
THERMAL LED (Orange) per channel
Dante
DANTE LED (Green / red) per unit
Data
DATA LED (White) per unit
On
ON LED (Green) per unit

DIGITAL ENGINE

Processor
Quad core 64bits 1,5GHz

AUDIO CONVERTERS

Sampling rate
48 kHz
Resolution
24 bit
Dynamic range
111 dB

REAL-TIME CLOCK

Retention time
30 days
Accuracy
1 minutes/month

LOCAL STORAGE

Micro SD
SDXC
Capacity
Up to 2TB
File system
FAT16, FAT 32, VFAT (read/write) NTFS (read) Multi-partition up to 1
Playable audio files
mp3, ogg, WAV, FLAC, AIFF
Files analysis
65354 playable folders 65354 playable folders within each folder 65354 playable files within each folder
Folder hierarchy
Up to 8 containing the root directory
Sorting
UNICODE, in alphabetical order Up to 100 folders / files by folder Folders/files over 100 sorted in the FAT order

PHYSICAL

Operating temperature
Min.: 0 °C / 32 °F Max.: 50 °C / 122 °F Performance may be reduced above 40 °C / 104 °F
Operating humidity
5 - 85% RH, non-condensing
Storage temperature
Min.: -10 °C / 14 °F Max.: 50 °C / 122 °F
Storage humidity
5 - 85% RH, non-condensing
Installation options
Rack 19" installation & desktop
Included accessories
Schuko AC cable, Euroblock Connectors (inputs /outputs), Desktop feet, rack 19" installation hardware
Optional accessories
Compatible with Ecler PULSO Series
Dimensions
Handles incl.: 482.5 x 44 x 405,6 mm. / 19 x 1.73 x 15.97 in. (WxHxD) Handles excl.: 482.5 x 44 x 372 mm. / 19 x 1.73 x 14.65 in. (WxHxD)
Weight
5.8 kg / 12.79 lb
Shipping dimensions
583 x 75 x 580 mm / 22.95 x 2.95 x 22.83 in. (WxHxD)
Shipping weight
8.30 Kg / 18.30 lb.

Compatible accessories

Ecler PULSO-10

PULSO-10

Digital Controls & Panels

10“ Control Touch Panel

Ecler PULSO-4

PULSO-4

Digital Controls & Panels

4“ Control Touch Panel

Ecler PULSO-6

PULSO-6

Digital Controls & Panels

5.5“ Control Touch Panel