Nova HDC 84 User Manual

Next-level audio controller with class-leading sonic performance
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Summary of Contents for Nova HDC 84

  • Page 2: Table Of Contents

    DECLARATION OF CONFORMITY WITH FCC RULES ................7 FEDERAL COMMUNICATIONS COMMISSION NOTICE ................. 7 FOR CUSTOMERS IN CANADA ......................8 Thanks and Unpacking ..........................9 Unpacking the NOVA HDC48 series controller ................... 9 INSTALLATION INSTRUCTIONS ......................10 The User Guide............................11 Introduction and Key Features ......................12 Introduction ............................
  • Page 3 Automatic Input Selection (Fallover) .................... 24 Gain and Polarity ........................... 24 Delay ............................. 24 High Pass Filter ..........................24 Parametric Equalisation ........................ 24 FIR Shelving EQ..........................24 Parametric Filters .......................... 25 Routing ............................25 Output ............................... 25 AES3 outputs ..........................25 Gain and Polarity ...........................
  • Page 4 IP Troubleshooting ........................30 Snapshots ............................30 AUX Port ............................31 Latency delay ............................ 33 Input/Output Latencies ......................... 33 Processing Latencies ........................33 Secure Mode ............................. 34 Overlay Flush ............................. 34 Revert to Factory Settings ......................... 34 Processing Block Diagram ........................35 Input Menu Map Utility Menu Map ..................
  • Page 5: Important Safety Instructions

    IMPORTANT SAFETY INSTRUCTIONS Read these instructions. Keep these instructions. Heed all warnings. Follow all instructions. Do not use this apparatus near water. Clean only with dry cloth. Do not block any ventilation openings. Install in accordance with the manufacturer's instructions. Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including amplifiers) that produce heat.
  • Page 6 SAFETY WARNING Permanent disconnection from the mains supply is to be achieved by removing the supplied cord connector from the back of the unit. SAFETY WARNING Do not remove any covers, loosen any fixings or allow items to enter any aperture. SAFETY WARNING Objects filled with liquids should not be placed on this apparatus.
  • Page 7: Compliance

    COMPLIANCE FOR CUSTOMERS IN EUROPE This product complies with both the LVD (electrical safety) 73/23/EEC and EMC (electromagnetic compatibility) 89/336/EEC directives issues by the commission of the European community. Compliance with these directives implies conformity with the following European standards: EN60065 Product safety EN55103-1...
  • Page 8: For Customers In Canada

    communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try and correct the interference by one or more of the following measures: ...
  • Page 9: Thanks And Unpacking

    All NOVA products are carefully engineered for world-class performance and reliability. If you would like further information about this or any other NOVA product, please contact us. We look forward to helping you in the near future.
  • Page 10: Installation Instructions

    INSTALLATION INSTRUCTIONS THIS PRODUCT MUST BE EARTHED. Use only a flexible cable or cord provided with a green or green and yellow core which must be connected to the protective earthing terminal of a suitable mains plug or the earthing terminal of the installation. The cord must be of maximum length 7.5 meters, rated SJ, SJT, or SJE, 10A minimum and be marked VW-1.
  • Page 11: The User Guide

    The User Guide This user manual gives a progressively more detailed description of the functions of the NOVA HDC48 series advanced system controller. A single page quick reference guide is provided for those users who are experienced with this type of equipment and just need to know how to ‘drive’ the front panel.
  • Page 12: Introduction And Key Features

    Introduction and Key Features Introduction The NOVA HDC48 Advanced System Controller represents current state-of-the-art technology. Taking advantage of the latest advances in analogue to digital conversion and digital signal processing technologies the unit achieves performance levels higher than previous devices. Below is a list of key features, followed by some information on the major advancements of the HDC feature set.
  • Page 13 Drive Modules may be included in Module Groups, which use the Parameter Overlay feature in the HDC48 to achieve trouble-free Grouping in the System Engineer application. The Presets in the HDC48 are Drive-Module centric, and are used to configure individual Drive Modules rather than the whole device.
  • Page 14: Audio Connections

    Audio Connections Input Connections For each input channel there is a female XLR input connector. Even channel numbers are for Analogue inputs only. Odd channel numbers are either for Analogue inputs (when in Analogue input mode) or for AES3 input pairs (when in AES3 input mode). The HOT, + or ‘in phase’...
  • Page 15: Using Unbalanced Connections

    Using unbalanced connections Please note that the use of unbalanced connections is not recommended, however, when connecting the device to an unbalanced audio source, the signal conductor should be connected to XLR pin2. The ‘Cold’ conductor or cable screen should be connected to XLR pin 3 with a short connection made between pin 1 and pin 3.
  • Page 16: Panel Layouts

    Panel Layouts Limiter Indicators- The output indicators shows the status of the limiter and output level relative to the limiter threshold. The <SIG> indicator shows signal presence and will illuminate when a signal is present in the output. The second indicator <-6dB> shows that the signal has reached 6dB below the limiter threshold. The third <LIMIT> indicator indicates that the threshold of that output channel has been reached.
  • Page 17 Audio Input Connectors- All audio connections are fully balanced and wired: pin-1 to ground (as required by the AES48 standard), pin-2 hot & pin-3 cold. When AES3 operation is selected on an input pair, the Odd channel connector is used for both channels (e.g.
  • Page 18: Operation

    Operation Starting up the unit The unit will power up as soon as power is applied to the IEC power inlet; there is no power switch. When power is present the unit will go through its start-up cycle - first all the indicators will illuminate then go off, while the screen displays the boot loader information.
  • Page 19: Drive Modules

    Output component Component parameters Input parameters Output component parameters These concepts are depicted in the System Engineer application as in the following example of a 2- way Module: A Snapshot is a device-wide representation of most of the settings in the device. This is represented as four Input Component numbers, eight Output Component numbers, plus a number of machine- centric settings such as routing and Input/Output Analogue/Digital selection etc.
  • Page 20: Drive Module Presets

    Drive Module Presets Presets do not change the settings device-wide. Rather, recalling a Module Preset creates a Drive Module by ‘consuming’ a number of consecutive outputs and setting up routing between the Input the preset was recalled on and those outputs. The parameters in that Drive Module are then set according to the parameters in the components in the Module Preset.
  • Page 21: Navigation And Designing Crossovers

    Navigation and Designing Crossovers The HDC48 has 50 Drive Module preset locations and these can be stored and recalled from the <INPUT> pages, for the channel being viewed. To design a new crossover, press the desired <INPUT> or <OUTPUT> button to enter the pages where the parameters for each of the channels are shown. Once in these pages the up <>...
  • Page 22: Storing Module Presets

    Storing Module Presets Once a drive module has been created it can be stored by pressing the <INPUT> button until the edited channel is reached, then pressing the down <> button until store page is reached. Using encoder “A” will change the preset number. When the destination preset is reached, pressing the <ENTER>...
  • Page 23: Input

    Also see Snapshots. Input AES3 / Network Inputs In addition to the usual analogue inputs, the HDC can also accept AES3 digital inputs. The same physical XLR sockets are used for both Analogue and AES3 inputs; the function of these being determined by the Type parameters in the Input Type menu.
  • Page 24: Automatic Input Selection (Fallover)

    Automatic Input Selection (Fallover) When a Digital Audio Network input is installed, it is possible to configure the input selection to be automated. The Input TYPE screen has a Fallover parameter, which defaults to Manual, allowing you to select what Type of input you wish to use. When Fallover Dante>AES3 is selected, then the Dante source will be automatically selected if it has a valid audio stream on it.
  • Page 25: Parametric Filters

    parameter from 2kHz to 20kHz, using encoder “B” will enable/disable the filter, and using encoder “C” will change the cut or boost in 0.2dB increments. The presence of an active Group Overlay parameter is indicated by the ‘[]’ symbol being appended to the Gain value (See Overlays). The filter (and its associated latency) can be completely removed by setting the enable parameter to the “Off”...
  • Page 26: High And Low Pass Filters

    LIR Crossover Filtering Unique to NOVA, “Linear Impulse Response” (LIR) crossover filtering gives a Linear Phase crossover which has a constant delay regardless of frequency (unlike other types of crossover which delay different frequencies to a different extent, thus smearing the arrival time).
  • Page 27: Limiters

    The HDC48 includes three limiters in the output signal path. Please note that whilst the Limiters in this product offer protection for amplifiers and drivers, they can never protect from all possible scenarios, therefore NOVA is not responsible for any damage which might occur. VX Limiter (Unique to NOVA) This is a peak-detecting signal limiter.
  • Page 28: Amplifier Gain

    related to the inverse of the signal frequency, drivers are prone to being damaged by very low frequencies. This limiter is progressively more sensitive at lower frequencies and, rather than varying the gain to provide the limiting action, it uses a sliding high-pass filter to progressively curtail the low-frequency response, effectively limiting the linear excursion to below the X-max specification of the driver.
  • Page 29: Current Ethernet Ip Address

    Current Ethernet IP Address This may be viewed in the “IP Curr” page of the “UTILITY” menu. This value cannot be edited. IP Mode The Ethernet IP address may be automatic “Auto” or may be a fixed static value “Static” as determined by the “IP Mode”...
  • Page 30: Auto-Ip

    address range. In a local network environment such as an office where there is a DHCP server, both the computer and the Device will be in the DHCP IP address range, and so will connect immediately. AUTO-IP The device will initially search for a DHCP server when first switched on (during which time its Online Indicator will be flashing).
  • Page 31: Aux Port

    what parameters might have been saved in users Snapshots. It does however require that any existing edits to the parameters in Drive Modules are stored into Drive Module presets before a Snapshot is stored. Also see Overview Of Modules Components and Snapshots AUX Port The AUX has two inputs, X &...
  • Page 32 under these conditions, the snapshot menu items are not accessible, and the Home screen will show the Snapshot number as a reminder. Also see Snapshots.
  • Page 33: Latency Delay

    Latency delay All Digital Signal Processing, and conversion between different formats of signal – analogue/digital/network etc, necessarily introduce some delay (latency) to the signal path. Of course, we strive to minimise these latencies. Small as they are, it is sometimes useful to know their precise values.
  • Page 34: Secure Mode

    Example: Input/Output Analogue Input 0.385ms Analogue Output 0.402ms Processing Input HiShelf FIR (Off) LIR Linear Phase crossover (500Hz) 2.38ms VxLim Lim (VX mode on, 1KHz Fsplit) 0.358ms Total 3.525ms Note that the latencies within a Drive Module are equalised among outputs of that Drive Module. That is, padding delay will be automatically added to some outputs such that the total latency is the same in each output of a Drive Module.
  • Page 35: Processing Block Diagram

    Processing Block Diagram...
  • Page 36: Input Menu Map Utility Menu Map

    Input Menu Map Utility Menu Map CH A CH B CH C CH D FIR/ FIR/ FIR/ FIR/ HOME STATIC IP HOME IP CURR IP MODE HOME IP CURR HOME UTIL STEREO HOME HOME EQ 2 EQ 2 EQ 2 EQ 2 HOME STYLE...
  • Page 37: Output Menu Map

    Output Menu Map …. CH 1 CH 2 CH 8 EQ / EQ / EQ / EQ / HOME EQ 8 EQ 8 EQ 8 EQ 8 HOME EQ 7 EQ 7 EQ 7 EQ 7 HOME EQ 6 EQ 6 EQ 6 EQ 6 HOME...
  • Page 38: Eq And Filter Response Graphs

    EQ and Filter Response Graphs...
  • Page 40 All-Pas s Filter         1 10 1 10 Freque ncy, Hz Bandwidths 0.1 to 5 Octaves...
  • Page 41: Technical Specifications

    Technical Specifications Input impedance: >10k Ohm balanced Output Imp: <100R imp. balanced Max Input level: +20dBu Max Output level: +18dBu into 600R Sample rate: 96kHz AES3 Input sample rate: 28kHz – 108kHz AES3 Output sample rate: 96kHz Frequency Response: 10Hz - 40kHz Input Dynamic range: >120dBa Typ.
  • Page 42: Options

    Options There is internal provision for digital audio network option cards to be factory fitted. Currently NOVA support Dante from Audinate.

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