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Nova TX20

20.000W 4-kanals effektforsterker med innebygd DSP i toppklassen.

Nova TX20
Varenr.: 111826
Lagerstatus: På lager
kr 79 995 inkl. mva. kr 63 996 eks. mva.
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NOVA TX20 er en 4-kanals effektforsterker som tilbyr deg en unik kombinasjon av effekt og lydkvalitet. En toppspekket DSP kontroller gir deg full kontroll over alle parametre, både over nettverk og på det veldesignede frontpanelet. TX20 leverer 4 x 5.000 watt i 2 ohm, eller 2 x 10.000 watt i brokopling. Topp moderne komponenter og et optimalisert design resulterer i kraftige strømreserver som sikrer en fantastisk lydkvalitet, selv under krevende forhold.

Nøkkelfunkjsoner:

  • Four channels of sonically pure Class D amplification
  • Unique & precise, 96kHz digital signal processing
  • 4th generation SHARC DSP algorithms
  • Over‐designed switch mode power supply
  • 20.000 watts RMS total output (4 x 5.000 W RMS)
  • Full front panel user interface
  • Extensive NOVA.Net control software over Ethernet
  • Analog, AES3 and digital network audio inputs (DANTE card as option)
  • Powerful grouping & multi‐layer EQ
  • Powerful drive module speaker-centric presets
  • LIR Linear Phase crossovers
  • Multi-stage peak & RMS limiters
  • Virtual Xover limiter for passive systems


NB! Og på toppen av alt, hele denne kruttpakken veier faktisk bare 12,5 kg!

 20.000 W 4-channel high-performance amplifier with on-board DSP

The NOVA TX20 is a 4-channel power amplifier, which offers a unique combination of power and audio performance, seamlessly combined with advanced DSP and network control. The TX20 delivers 5.000 watts per channel or 10.000 watts for a bridged pair. State of the art components and a finely optimised design results in generous power reserves that ensures pristine sound quality is maintained even under the most extreme conditions.

Features:

  • Four channels of sonically pure Class D amplification
  • Unique & precise, 96kHz digital signal processing
  • 4th generation SHARC DSP algorithms
  • Over‐designed switch mode power supply
  • 20.000 watts RMS total output (4 x 5.000 W RMS)
  • Full front panel user interface
  • Extensive NOVA.Net control software over Ethernet
  • Analog, AES3 and digital network audio inputs (DANTE card as option)
  • Powerful grouping & multi‐layer EQ
  • Powerful drive module speaker-centric presets
  • LIR Linear Phase crossovers
  • Multi-stage peak & RMS limiters
  • Virtual Xover limiter for passive systems
  • Ultra lightweighted (12.5 kg only)


NOVA.Net PC Application
The NOVA.Net „System Engineer“ PC app is much more than just a remote control panel for a TX20. The PC app and any  connected device(s) become intimately intertwined, faithfully duplicating any control adjustments whether they are made in  the application or on the front panel of the device itself. Adjust a gain control on the device, and watch the gain value in the  app smoothly slide in sympathy. Each input and each output can be named in the application. These names not only appear  for the user on the application control panels, but also show when scrolling through the inputs and outputs on the device itself. Even a TX20 firmware update can be made easily via the network.

High Speed Interface
The TX20 includes a high speed ethernet communications interface that supports DHCP, static-IP and  auto-IP and direct connection to a computer without the need for a router or a switch.

AES3 and Digital Networked Audio
The TX20 offers a dual channel AES3 input as standard. The DANTE audio networking card is available as option.

Drive Module Concept
The powerful drive module concept allows for abstraction from device centric to speaker based control. The TX20 uses drive module presets, which are defined as a number of outputs driven from one DSP input. This system allows for better flexibility and greater functionality when loading and storing presets. Drive modules allow for a less processor-centric and more speakerorientated system design. The TX20 allows 50 drive module presets to be stored. Presets are stored permanently inside the TX20 and so will always be available even if the TX20 is not being used with the NOVA.Net software.

General Specifications

  • Number of output channels:  Four
  • Total power output, all channels driven: 20.000 Watts RMS
  • Audio inputs: 4x Analogue, 2x AES3 and 4x Networked Audio Interface (DANTE card as option)
  • Digital Signal Processing: High performance 96kHz DSP on all inputs and outputs
  • Control, monitoring and system status alarms: Ethernet network, volt‐free relay and contact closure port
  • Power‐save modes: Standby after user defined time with fast wake up on audio, deep ECO sleep after user defined time with wake up on command
  • System standby and wakeup: Front panel switch, network command and audio detection 


 Power Output

  • Power specification: RMS output power per channel, all channels driven with cont. program material & nominal ambient temperature of 40degC / 105degF
  • Crest Factor of 4 (12dB), 2‐Ohm nominal load: 5.000 Watts
  • Crest Factor of 2.8 (9dB), 4‐Ohm nominal load: 3.000 Watts
  • Crest Factor of 2 (6dB), 8‐Ohm nominal load:  1.500 Watts
  • Bridged, per channel pair, 4-Ohm load:  10.000 Watts
  • 25V line (CV) operation, Crest Factor 4 (12dB):  1.250 Watts
  • 70V line (CV) operation, Crest Factor 4 (12dB):  3.500 Watts
  • 100V line (CV) operation, Crest Factor 4 (12dB): 5.000 Watts


Audio Performance

  • Amplifier topology:  NOVA high performance Class-D
  • Amplifier modulation scheme: Low feedback, multiple loop, with feed‐forward error correction
  • Dynamic range (measured relative to amp output): Analogue input, better than 113dBA typical, AES / Networked Audio input, better than 114dBA typical
  • Gain (with all the DSP level controls set to 0dB): 32dB
  • Frequency response, 4 Ohm load: <7Hz to >30kHz, 4 Ohms, ‐2.5dB points
  • Total harmonic distortion, THD: <0.05% typical, 1kHz signal, AES17 filter, 4 Ohm load
  • Inter‐channel crosstalk, worst case combination: better than ‐85dBr at 1kHz and ‐75dBr at 10kHz
  • Slew rate:  >60V per microsecond typical
  • Damping factor (Ref 8 Ohms):  >800 at amplifier output
  • Maximum analogue input level:  +20dBu
  • Analogue input sensitivity range for full output: 0dBu to +20dBu, continuously adjustable
  • Analogue input (four channels):  Input 20k Ohm, electronically balanced, link directly connected to input
  • Analogue ground scheme: AES48 standard compliant
  • AES3 input (two audio channels): Transformer isolated with unique active cable equalisation for extended range
  • AES3 link (two audio channels): Active AES3 signal regeneration. Automatic direct bypass to the AES3 input ensuring
    the audio signal will still flow even when the amplifier is powered down
  • AES3 supported sampling rates: AES3 supported sampling rates 24kHz to 192kHz (auto locking)


Digital Signal Processing

  • Resolution: 40 bit, NOVA proprietary algorithms
  • Sample rate: 96kHz throughout
  • Physical inputs to DSP drive modules: 4x analogue, 2x AES & 4x DanteTM inputs can be routed to four DSP drive modules
  • Drive module input processing: Input signal routing, delay, gain, HPF, Phase, Mute, EQ: 2x low shelf, 6x PEQ / band pass and FIR shelving filters
  • Drive module output processing: Source, delay, gain, Phase, Mute, crossover filters, VX limiters, EQ: low shelf, 8x PEQ / band pass and shelving filters
  • Preset management: 10 snapshots for device wide setup, 50 presets for loudspeaker settings, presets can be recalled to sets of outputs or individual outputs
  • Overlays: Twelve additional independent overlays of EQ, Delay and Gain, flexible grouping for effective control of amplifier channels in large systems
  • Class leading VX limiters:See the ‘speaker protection systems’ section
  • Hardman crossover filters: Better out of band rejection than Linkwitz‐Riley
  • LIR crossover filters: Unique Linear Phase alignments without the compromises of FIR filters


Power Supply

  • Topology (main power supply): NOVA high performance Series Resonant
  • Topology (auxiliary and standby supplies): Low quiescent Eco‐Flyback
  • Internally stored energy:  >600 Joules
  • Nominal mains input voltage range: 85V to 240V, Power supply automatically detects voltage and configures accordingly
  • Mains input frequency range: 47Hz to 63Hz
  • Mains inrush current (max for <10ms): 6A at 115V, 12A at 230V


Protection Systems

Under all circumstances the control and protection systems will endeavour to deliver the maximum power possible for a given set of conditions, applying limiters only in extreme circumstances.  Muting will only occur when a dangerous situation is detected, normal operation automatically resuming when the condition clears. An inbuilt notification system is provided to indicate problems to remote devices either via the network or the volt‐free changeover relay contacts accessible on the rear panel.

System protection

  • Excessive power supply current or amplifier output current
  • Excessive temperature per sub system: PSU, amplifier and DSP
  • Mains voltage within acceptable limits
  • Internal power rails producing correct output
  • Fans operating at correct speed


Power distribution protection systems

  • Mains inrush current limiting for soft start and anti‐surge
  • Mains average current limiting for mains breaker management
  • Randomised initialisation when remotely powered up


Monitoring, measurements recorded against time

  • Supply current
  • Supply voltage
  • Thermal capacity
  • Each driver current
  • Each driver impedance
  • Protection
  • Limiting for each output


Speaker protection

  • Sustained clipping prevention
  • DC offset protection
  • Excessive HF energy (VHF) limiter


VX audio output limiters

Vx provides a linear phase virtual crossover and two limiter paths on each output.  This unique system delivers effective protection for systems that incorporate  passive crossovers.

  • Vx Limit: Multiband peak limiter, two per output
  • Vx Max: Multiband overshoot limiter, two per output
  • X‐Max: Driver excursion limiter
  • T‐Max: Driver thermal limiter (long term power limiter)


Monitoring, device statistics and counters

Number of power cycles counted, number of mains brownout events counted, fan speeds continuously monitored, fan under‐speed events counted, various protection mute events counted, driver impedance continuously monitored

Physical

  • Cooling: Cooling Dual vari‐speed fans, front to back airflow. Washable, tool‐less change filter media
  • Analogue IN and LINK:  Analogue IN and LINK 4x female and 4x male NeutrikTM XLR
  • AES3 dual channel IN and LINK: AES3 dual channel IN and LINK 1x female and 1x male NeutrikTM XLR
  • Amplifiers output: Amplifiers output 4x Neutrik SpeakonTM NL4 connectors
  • Mains input connector: Mains input connector Neutrik 32A PowerconTM
  • Dante Primary and Secondary: Dante Primary and Secondary 2x Shielded RJ45
  • Relay output & contact closure inputs: Relay output & contact closure inputs PhoenixTM pluggable terminal block (mating plug supplied)
  • Front panel display: Front panel display Backlit, graphical, high contrast, daylight visible
  • Front panel encoders: Front panel encoders Two, detented, velocity sensitive
  • Front panel push buttons:Front panel push buttons Large, tactile, illuminated
  • LED indicators: LED indicators Bright, easily differentiated
  • Enclosure: Enclosure Standard 19” 2U (88mm), 357mm (14”) deep with handles and optional rear support
  • Net Weight: 12.5 kg