HDSP-4A

  • 6.400 W, 2 x 2.400 W + 2 x 800 W an 4 Ω
  • 4 channel DSP amplifier with dual-technology
  • 2 power supplys, DSP-boards and Class-D module
  • Integrated loudspeaker management systems (DSP) with audiophile sound quality
  • 2 x 80 preset locations, including 2 different presets assignable simultaneously
  • Software control via Ethernet interface and USB
  • Intelligent wide-range switching power supplies with automatic worldwide voltage adjustment
  • Dust protected by modular upside-down board assembly
  • Very quiet, temperature controlled low-noise EBM Papst fan
  • Tough, road-ready, stable and yet light aluminum housing

Quantity channel
4 CH, class-D latest generation

Power output 4 Ω
6.400 W (2 x 2.400 W + 2 x 800 W)

Power output 8 Ω
4.060 W (2 x 1.580 W + 2 x 450 W)

Power output 16 Ω
2.000 W (2 x 800 W + 2 x 200 W)

Damping factor
> 1000 / 8 Ω, 1 kHz

Frequency responce
20 - 20.000 Hz

THD+N
< 0,05 % (20 - 20.000 Hz with 8 Ω)

Signal-to-noise ratio
> 118 dB (20 - 20.000 Hz with 8 Ω)

Voltage
Intelligent PFC wide-range power supply with soft start and automatic voltage selection:
85 - 135 V = 110 / 115 / 120 V Betrieb, 190 - 265 V = 220 / 230 / 240 V Betrieb, 50/60 Hz

Powerconnector
1 x 16 A Neutrik PowerCon IN

Signal connection analog INPUT/LINK
4 x XLR female/male

Speaker Connections
4 x Speakon

Network connection
2 x Additional rear RJ45 socket for wired network in fixed installations

Cooling
2 x temperature-controlled EBM-Papst low noise axial fan, air flow front to back

Protection
Input limiter, peak limiter
Start-up current limiting (soft start)
Protection circuit on and off transients
Under and over-voltage protection
DC-protection of outputs
Temperature monitoring of the heatsink and transistors

Realtime software-monitoring
Loudspeaker impedance measuring from each output channel (line-control)
Temperature measuring from each ampmodule
Real time meterbridge on PC per channel
Real time access for configuration on each channel
Speaker group building for access multiple speakers with one command

DSP sampling
64 bit, 96 kHz sample rate

DSP preset memory quantity
2 x 80 preset locations, including 2 different presets assignable simultaneously

Latency
0 - max. 500 microsecond

Dynamic range input
120 db

Nominal input level
+ 6 dbu

Maximum input level
+ 23 dbu

Limiter
Two per way, in each input and output

Filter
10 parametric filter each in- and output, use as Bell, Shelving, Notch, or Allpass filter

Long delay section
0 - 800 ms (max. 275 m delay) in each input

Short delay section
0 up to 17 ms (max. 6 m delay) per output for time alignment between the acoustic centers

Phase adjustment
0 - 180°

X-Over
Butterworth, Bessel, Linkwitz-Riley Filter

Software
Bi-directional realtime VA-WLAN-remote network, software for PC and MAC

Manual hand operation
with 4 x button and 2 x digital encoder-wheel in the internal menu navigation, function lockable

Display
2 x LED display
2 x LCD display with software dimmable and switchable

Body housing
19"/2 HE, 430 mm deep, strong black colored aluminum housing

Weight
6,6 kg