DELTA20.4-DSP

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Price:
10916,25 €
Manufacturer: Hoellstern
Description

DELTA20.4-DSP Audio Amplifier

The DELTA20.4-DSP amplifier is a high-performance four-channel power amplifier with a built-in DSP loudspeaker management. The integration of Hoellstern's proprietary DSP controller gives the DELTA20.4-DSP amplifier extra benefits over traditional solutions with separate components. Due to the precise and comprehensive Hoellstern® loudspeaker libraries the DELTA20.4-DSP amplifier offers additional benefits as a loudspeaker brand independent solution with a decisive advantage over conventional system components.With their four individual audio inputs and four individual  audio outputs Hoellstern® amplifiers are perctly suited for all applications. The high sound quality, the extraordinary flexibility and the great overall quality are lasting guarantors for a future-proof investment which will amortise quickly and make the daily routine of professional sound technicians a lot easier. Hoellstern amplifiers are system.

Hoellstern® Amplifier Technology:

  • 4 (instead of 2) individual inputs and 4 outputs
  • Reinforced Neutrik® PowerCON® mains socket
  • 0.000 ms latency, ZeroLatency™ technology  
  • Reinforced high-current Neutrik® SpeakON® connectors
  • Exemplarily load stable high-current audio outputs
  • Full-metal Neutrik® XLR sockets and plugs
  • 4 x 4.4 kW at 4 ohms (> 5 kW at 3.2 ohms)
  • Sturdy, vacuum-cleanable spring steel air filter grids 
  • Each channel 8 kW at 2 ohms (> 10 kW at 1.6 ohms)
  • Black powder-coated full-metal housing 
  • Comprehensive protective functions
  • All heatsinks screwed to housing for reinforcement
  • Damping factor 1500 at 8 ohms
  • Mechanically protected rotary controls and LEDs
  • Strikingly audiophile, high-resolution, neutral sound  
  • 2 RU housing weighting only 12 kg (26 lbs)
  • Amazingly well-controlled bass response  
  • 2 RU housing of only 29 cm depth (from rack ears)
  • Digitally controlled amplifier setup
  • Replaceable 2 RU rack ears 
  • Robust RS-485 network (and RS-232 interface)
  • Top-grade temperature-controlled fans
  • Deterministic Hoellstern® network protocol  
  • Front sucking fans
  • Active mains relieving PFC circuit  
  • Top-grade rear-panel switches (ball mechanism)
  • Rugged iCVP® switching power supply technology
  • Safe operation in damp and soiled ambience
  • Intelligent AC mains management for 16 A breaker (B)
  • Permissible start-up temperature -40 °C
  • AC mains voltage from 75 V to 265 V (> 100 VDC)
  • All functions internally controlled by firmware 
  • AC mains frequency between 40 Hz and 100 Hz
  • All technologies successfully introduced since 01 / 2004 
  • Very high overall efficiency
  • Engineered and made in Germany
  • Maintenance-free design

Hoellstern® DSP Controller Technology:

  • 4 (instead of 2) individual inputs
  • Separate peak limiters and true RMS limiters
  • Fully integrated 56-bit DSP controller
  • Forecast™ Limiter
  • True DSP bypass circuit, ZeroLatency™
  • Classic IIR and FIR filtering
  • 0.2 ms latency with active DSP, QuasiAnalog™
  • All IIR filters fully parametric
  • Comprehensive Hoellstern® loudspeaker library
  • DSP hardware integrally melded with amplifier 
  • Free programmability with Konfigurator2
  • All DSP technologies successfully introduced since 2006 
  • Open DSP architecture, Hoellstern® DSPSoftEngine™
  • Engineered and made in Germany

 

The specifications

  • Number of individual inputs 4
  • Number of individual outputs 4
  • Output voltagepeak > 190 V
  • Output current cut-out limitpeak (with 5 retries) > 115 A
  • Output powers and permissible nominal loads                     Output C1            Output C2              Output C3           Output C4
  • 8 ohm [Bridgeable]                                                           2200 W                2200 W                 2200 W              2200 W
  • 4 ohm [Bridgeable]                                                           4400 W                4400 W                 4400 W              4400 W
  • 2.7 ohm                                                                        >6000 W 1)             >6000 W 1)               >6000 W 1)           >6000 W 1)
  • 2.0 ohm                                                                        >8000 W1)              >8000 W1)                 >8000 W1)            >8000 W1)
  • 1.6 ohm (only for information  – 2 ohm minus 20 %)         >10000 W1)            >10000 W1)              >10000 W1)          >10000 W1)

1) Each channel provides individually considered extremely high, load stable performance at nominal impedances down to 2 ohms. The total power of all four channels is at practical burst signals typically 20 kW (40 kW for a short time). Will be permanently accessed more power than the power supply (mains and supply) can provide, so the hardware limiter will reduce the output levels. The hardware limiter should not be used as a signal compressor. It is up to the user to properly deal with the available power pool.

  • THD at 1 kHz at 4 ohms and -3 dB < 0.03 %
  • Frequency response 20 Hz to 20 kHz at 8 ohms at -15 dB + / - 0.5 dB (typically + / - 0.05 dB)
  • Damping factor at 8 ohms, 100 Hz > 1000, typically 1500 comprising the SpeakON® connectors, typ. 5 mOhms
  • Latency without DSP or bypass (connector to connector)  0.000 ms, ZeroLatency™ technology
  • Signal limiter Yes
  • Current monitoring  Yes
  • LF limiter Yes, reduces the gain gently
  • HF limiter Yes, reduces the gain gently
  • AC mains supply monitoring / Power management Yes
  • Rearmounted gain factor toggle switch 26 dB and 32 dB basic gain 
  • Frontmounted rotary gain controls 0 dB to – 100dB, digitally controlled
  • Rearmounted bridge mode switch  Channel 1 and 2: Yes Channel 3 and 4: Yes
  • AC mains supply input  1 x Neutrik® PowerCON®
  • Analogue input and slave connectors  4 x 3-pin Neutrik® full metal socket and 4 x 3-pin Neutrik® full metal plug
  • Amplifier output connectors 4 x 4-pin high current Neutrik® SpeakON®
  • Resolution ADC input 24 bit
  • Sampling frequency ADC input 96 kHz default, optionally 48 kHz and 192 kHz (selectable via DSPSoftEngine™)
  • Latency with active DSP (connector to connector) 0.2 ms at 96 kHz sampling frequency, QuasiAnalog™ technology
  • DSP delay 0 ms to 340 ms (115 m) in total per channel pair at 96 kHz
  • DSP memory locations 300
  • DSP RMS limiter  Yes, TrueRMS, optionally with ForecastLimiter™ by DSPSoftEngine™
  • DSP peak limiter Yes, optionally with ForecastLimiter™ by DSPSoftEngine™
  • Hoellstern® DSPSoftEngine™ Yes, comprehensive basic setups, expandable as desired
  • Remote control network  Yes, D-Sub 9 socket, RS-485 network, RS-232 point-to-point, Hoellstern® protocol
  • Frontside status LEDs display  Standby, Signal Input, VU -6 dB, VU -3dB , VU 0dB and Signal Limit
  • Frontside error LEDs display  Current, HF / LF Limiter, Temperature
  • Frontside rotary controls  One rotary step control with digital sensing per channel
  • Frontside switches Standby / ON switch, software-controlled
  • AC mains input 180 VAC to 265 VAC, operative from 70 VAC, 400 V tolerant
  • Starting current 10 A softstart
  • Intelligent AC mains power management Yes, iCVP®  
  • technology, dual hard-regulated switching power supply
  • Efficiency Up to 84 % (AC mains input to audio output)
  • AC mains fusing 16 A (class B breaker), for personal alarm systems class C circuit breaker or better
  • Housing construction Black powder-coated steel body , anodised aluminium front panel
  • Handles and 19" rack ears Yes, anodised aluminium, replaceable
  • Air filter and grids Open-pore foam, spring steel grids, black powder-coated, vacuum-cleanable
  • Air rate and fans 3 fans, temperature-controlled speed, front sucking
  • Dimensions Width: 19" (483 mm), height: 2 RU (88 mm), overall depth: 290 mm from rack ears
  • Weight 12 kg (26 lbs), shipping weight 14 kg (30 lbs)

 

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