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Sonifex RM-2S4 Handbook

Reference monitor
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Reference Monitor
RM-2S4
Reference Monitor, 2 LED Meters & 4 Stereo Channel Inputs
RM-2S10
Reference Monitor, 2 LED Meters & 10 Stereo Channel Inputs
RM-4C8
Reference Monitor, 4 LED Meters, 8 Channel Inputs & Dual Selectors
RM-4C8-HDE1 Reference Monitor RM-4C8 With RM-HDE1 Dolby® Decoder Card
RM-4C8-E1X
Reference Monitor RM-4C8 With RM-E1X Dolby® Decoder Card
RM-4C8-E1B
Reference Monitor RM-4C8 With RM-E1B Dolby® Decoder Card
RM-HD1
3G/HD/SD-SDI Expansion Card
RM-HDE1
3G/HD/SD-SDI Dolby® E Decoder Expansion Card
RM-E1X
Dolby® E Decoder Expansion Card
RM-E1B
Dolby® E Decoder Expansion Card
Manufacturers of audio & video
products for radio & TV broadcasters

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Summary of Contents for Sonifex RM-2S4

  • Page 1 Reference Monitor RM-2S4 Reference Monitor, 2 LED Meters & 4 Stereo Channel Inputs RM-2S10 Reference Monitor, 2 LED Meters & 10 Stereo Channel Inputs RM-4C8 Reference Monitor, 4 LED Meters, 8 Channel Inputs & Dual Selectors RM-4C8-HDE1 Reference Monitor RM-4C8 With RM-HDE1 Dolby® Decoder Card RM-4C8-E1X Reference Monitor RM-4C8 With RM-E1X Dolby®...

  • Page 2: Table Of Contents

    Information in this document is subject to change without notice and does not represent a 3. RM-HD1 Reference Monitor 3G/HD/SD-SDI Expansion Card 36 commitment on the part of the vendor. Sonifex Ltd shall not be liable for any loss or damage Technical Specification For RM-HD1 whatsoever arising from the use of information or any error contained in this manual.
  • Page 3 Fitting An Expansion Card Fig 1-17: Reference Monitor RM-2S10 Rear Reference Monitor RM-4C8 with an RM-E1X, RM-E1B or Fig 1-18: RM-2S4 & RM-2S10 DIPswitch Settings RM-HDE1 Dolby Decoder Expansion Card Fig 1-19: Reference Monitor Volume & balance Remote Operation of The RM-4C8 With The RM-E1X or...
  • Page 4 To register your product, please go online to www.sonifex.co.uk/register Sonifex Limited — 61 Station Road — Irthlingborough — Northamptonshire — NN9 5QE — United Kingdom Tel: +44 (0)1933 650 700 — Fax: +44 (0)1933 650 726 — Email: technical.support@sonifex.co.uk — Internet: www.sonifex.co.uk...

  • Page 5: Product Warranty - 2 Year Extended

    ‘the Contract’ means the quotation, these Conditions of Sale and any other document incorporated in a contract between the Company and the As standard, Sonifex products are supplied with a 1 year back to base Purchaser. warranty. In order to register the date of purchase and so that we can keep...

  • Page 6: Unpacking Your Product

    Warranty the defect has not arisen from a design made, furnished or At the request and expense of the Purchaser the Company will test specified by the Purchaser; the Goods to ascertain performance levels and provide a report of the results of that test. The report will be accurate at the time of the vii.

  • Page 7: Repairs & Returns

    Repairs & Returns Fuse Rating Please contact Sonifex or your supplier if you have any problems with your The product is supplied with a single fuse in the live conducting path of the Sonifex product. Email technical.support@sonifex.co.uk for the repair/ mains power input.

  • Page 8: Weee Directive

    All products manufactured by Sonifex Ltd have the WEEE directive label Connect the equipment in accordance with the connection details and placed on the case. Sonifex Ltd will be happy to give you information about before applying power to the unit, check that the machine has the correct local organisations that can reprocess the product when it reaches its “end...

  • Page 9: Reference Monitors Introduction

    Reference Monitors Reference Monitors Introduction Accurate Sound System The speaker system comprises a three-way arrangement with two mid/high The Reference Monitor Range is a series of rack-mount audio monitors, frequency speakers providing excellent stereo imaging and a separately combining the latest DSP technology with outstanding audio enclosure driven, forward facing, dual magnet, mono bass driver.
  • Page 10 Reference Monitors 5 Band Parametric Equalisation Each product in the Reference Monitor range contains an embedded 5 band parametric equaliser. On testing the units, they are set up to give a flat response across the quoted frequency range, but the parametric EQ allows you to alter the response either to account for poor acoustics in the room that the monitor is mounted in, or to suit your particular listening tastes.

  • Page 11: Rm-2S4 Reference Monitor, 2 Led Meters & 4 Stereo Channel Inputs

    Reference Monitors RM-2S4 & RM-2S10 1. RM-2S4 Reference Monitor, 2 LED Meters & 4 Stereo Channel Inputs RM-2S10 Reference Monitor, 2 LED Meters & 10 Stereo Channel Inputs Introduction Fig 1-1: RM-2S4 Reference Monitor Front Panel Fig 1-2: RM-2S10 Reference Monitor Front Panel...

  • Page 12: System Block Diagram

    Sonifex SCi software. The open control protocol also allows operation with terminal programs or customised applications. An optional addition to the RM-2S4 and RM-2S10 is an SDI video input expansion card, allowing a single AES group embedded within a 3G, HD or SD-SDI signal to be de-embedded and monitored, (RM-HD1).

  • Page 13: Front Panel Indicators & Controls

    Reference Monitors RM-2S4 & RM-2S10 Front Panel Indicators & Controls The rotary Source selector determines which of the four (RM-2S4) or ten (RM-2S10) stereo audio inputs in the currently selected Bank is routed to the loudspeakers and metering. Turning the selector anticlockwise increments the Source number and vice versa, with the currently selected Source being indicated by illumination of the corresponding Source LED.
  • Page 14 16 channels of embedded audio divided into four groups. To monitor control OPT command (see the appropriate section of this manual). this audio using an RM-2S10 or RM-2S4 fitted with an RM-HD1 card, select each channel pair using the Source and Bank controls as per the table below:...

  • Page 15: Fig 1-8: Rm-2S4 & Rm-2S10 Meters

    DIPSwitch Block 2 loudspeakers including any front panel signal modifiers that are active, i.e. Fig 1-9: RM-2S4 & RM-2S10 DIPSwitch Settings they are “output” meters. For example, if Middle+Side processing is active (see the appropriate section of this manual), the upper meter will display Note that power should be removed from the unit while making changes to the Middle signal and the lower meter will display the Side.

  • Page 16: Fig 1-10: Meter Labelling Options

    Reference Monitors RM-2S4 & RM-2S10 0dBFS Amber Section Red Section Meter Characteristics Scale Range* SW10 SW11 Reference Starts at* Starts at* Dual PPM + Standard -13 to +13dBu +18dBu 0dBu +8dBu BBC PPM or EBU -13 to +13dBu +18dBu 0dBu...

  • Page 17: Fig 1-11: Brightness Control

    Reference Monitors RM-2S4 & RM-2S10 Brightness Control perfectly silent (as is possible in the case of a digital source) then the phase The brightness of the bargraph meters and all other front panel correlation will average 0.0, but a small degree of crosstalk between the...

  • Page 18: Audio Modifiers

    STATUS LED Indicators The digital audio inputs of the RM-2S4 cannot in themselves clip unless extra input gain has been applied, but signal peaks may come within 0.5dB of maximum if the input signal has undergone aggressive processing at an earlier stage, and the CLIP indicator will respond to this.
  • Page 19 Reference Monitors RM-2S4 & RM-2S10 The audio modifiers are controlled using the 6 white illuminated buttons CUT L & CUT R Audio Modifiers on the front panel. Each of the modifiers is operated via an illuminated When on, the CUT L and CUT buttons are illuminated and the corresponding pushbutton switch, with each press of the button toggling the modifier channel of the selected audio source is muted.

  • Page 20: Rear Panel Connections & Operation

    For example, sometimes being able to put the speakers deliberately (refer to the Main Meters section of this manual). Rear Panel Connections & Operation Fig 1-16: Reference Monitor RM-2S4 Rear Fig 1-17: Reference Monitor RM-2S10 Rear...
  • Page 21 Wordclock Termination (block 2 DIP switch 10) level permitted before signal clipping occurs. The front panel CLIP indicator This terminates the internal wordclock on RM-2S4 and 4C8 units and illuminates at the onset of clipping, with extended illumination indicating prevents false clocks or ringing which can cause invalid output signal or that the input gain should be reduced and/or the input signal levels noise.
  • Page 22 XLR of the pair and leave the right-hand XLR unconnected). 19 AES/EBU Input 5- Analogue Input 3L- Analogue Input 8L- The RM-2S4 automatically detects digital input signals and seamlessly Ground Ground Ground presents them for selection in exactly the same way as analogue ones; the...
  • Page 23 Source signal. The XLR pin assignations RM-2S10 to increase the number of inputs and/or add to the available are as follows: functions. Please note DIP switch 10 should be set to off for RM-2S4 units Pin 1: Ground...
  • Page 24 Reference Monitors RM-2S4 & RM-2S10 Open-collector outputs are low (conducting) during alarm Pin No. Function conditions. When an alarm occurs they begin conducting Audio underlevel/fail alarm – latching open collector and, with the exception of the AES/EBU lock output, MUTE input – pull low to activate remain in that condition until the Alarm Reset input is Audio overlevel alarm –...
  • Page 25 The pin assignations are as follows: information. Pin 2: Data transmit Sonifex SCi software is available free of charge from the Sonifex website - Pin 3: Data receive www.sonifex.co.uk Pin 5: Ground All other pins are unused.

  • Page 26: Technical Specification Rm-2S4 & Rm-2S10

    Reference Monitors RM-2S4 & RM-2S10 Technical Specification RM-2S4 & RM-2S10 Audio Modifiers Modifier Selection: Illuminated front panel pushbuttons Inputs DIM: Reduces speaker audio level by 10dB Audio Inputs (RM-2S4): 4 x stereo analogue or AES/EBU digital CUT L & CUT R:...
  • Page 27 Reference Monitors RM-2S4 & RM-2S10 Level Metering Status Indicators Number: 2 x 53-segment tri-colour LED bargraphs LIMIT: Indicates loudspeaker protection limiter is active. Characteristics: Selectable by switch from: 1. Dual BBC PPM + standard VU CLIP: Indicates internal digital clipping due to 2.
  • Page 28 Reference Monitors RM-2S4 & RM-2S10 Digital Input Termination Input 5 110Ω ON Unterminated OFF DIP Switch Settings (Underneath The Unit, See Fig 1-17) Digital Input Termination Input 4 110Ω ON Unterminated OFF Block 1 (RM-2S4 & RM-2S10) Digital Input Termination Input 3 110Ω...

  • Page 29: Rm-4C8 Reference Monitor, 4 Led Meters, 8 Channel Inputs & Dual Selectors

    USB and RS232 connections in conjunction with Sonifex SCi software. source lock. The open control protocol also allows operation with terminal programs or...

  • Page 30: System Block Diagram

    Reference Monitors RM-4C8 Optional additions to the RM-4C8 include SDI video System Block Diagram input expansion cards and Dolby Decoding cards, allowing an audio AES group embedded within a 3G, HD or SD-SDI signal to be de-embedded and monitored, either with Dolby E and Dolby Digital decoding (RM- HDE1) or without (RM-HD1).

  • Page 31: Front Panel Indicators & Controls

    Front Panel Indicators & Controls The currently selected Sources may also be changed via the remote control ports, using the Sonifex SCi software and such changes will also be reflected by the Source LEDs. The Source selectors are endless rotary encoders; further rotation once the lowest/highest Source has been selected will be ignored.

  • Page 32: Fig 2-5: Rm-4C8 Meters

    Reference Monitors RM-4C8 When mains power is removed, the currently selected Bank is stored in Main Meters non-volatile memory and recalled instantly once power is restored. When the RM-HD1 expansion card is fitted to the RM-4C8 the banks EX A, EX B, EX C and EX D become available for selection.

  • Page 33: Fig 2-6: Rm-4C8 Dipswitch Settings

    Reference Monitors RM-4C8 Amber Meter Scale 0dBFS Section Section SW8 SW9 SW10 SW11 Characteristics Range* Reference Starts Starts 9 10 11 12 9 10 11 12 Dual PPM + -13 to +18dBu 0dBu +8dBu OFF OFF OFF Standard VU +13dBu BBC PPM or -13 to +18dBu...

  • Page 34: Fig 2-7A: Meter Labelling Options

    Reference Monitors RM-4C8 Once the desired meter the two currently selected audio Sources. It characteristic has been is labelled in both degrees of phase shift and chosen, proper scale labelling amount of correlation. The phase meter is an may be ensured by removing “output”...
  • Page 35 Reference Monitors RM-4C8 volume control – being requested from the unit and is necessary to prevent LEVEL Control permanent damage to the loudspeakers. The LEVEL, or volume, control is a rotary potentiometer allowing volume adjustment of the internal loudspeaker system, the headphone output and The protection limiter is a fast-attack, slow-release type.

  • Page 36: Audio Modifiers

    Reference Monitors RM-4C8 Audio Modifiers The DIM modifier may also be activated by an external signal applied to the rear panel remote control port. The DIM button will illuminate when such an external signal is active. Audio Delay Control (RM-HD1 only) The DIM audio modifier has a secondary function which is used to add variable delay to the audio coming from the SDI audio de-embedder expansion card (RM-HD1).

  • Page 37: Rear Panel Connections & Operation

    Reference Monitors RM-4C8 Audio is still present at the headphone and line outputs and the front panel The MONO modifier will affect the loudspeaker audio, line-level audio modifiers affect this audio as normal. Before this function can be used, it outputs and phase meter reading.
  • Page 38 Wordclock Termination (block 2 DIP switch 10) Input Maximum Signal Level Maximum Signal Level This terminates the internal wordclock on RM-2S4 and 4C8 units and Gain (Analogue Sources) (Digital Sources) +18dBu...
  • Page 39 Reference Monitors RM-4C8 The RM-4C8 automatically detects digital input signals and seamlessly The line-level output signals are always affected by the setting of the front- presents them for selection in exactly the same way as analogue ones; the panel audio Modifiers, with one exception - DIM only affects the line-level inputs may therefore be any mixture of analogue and digital Sources.
  • Page 40 Source inputs using the serial remote control is used when necessary. control LCK: command. Sonifex SCi software, when installed on a suitable PC, provides The active-low control inputs all have internal pull-ups. Equipment driving straightforward graphical access to all remote control and configuration these inputs need sink only 1mA and block 5V.

  • Page 41: Technical Specification Rm-4C8

    Crosstalk: Analogue I/O, ref 0dBu 1kHz Input: <-90dB Sonifex SCi software is available free of charge from the Sonifex website - 10kHz input: <-85dB www.sonifex.co.uk Audio Modifiers Technical Specification RM-4C8...
  • Page 42 Reference Monitors RM-4C8 Amplifier/Loudspeakers Remote Control Configuration: Three-way with stereo mid/high-frequency USB: Slave device, 19200 baud drivers & mono low-frequency driver Serial: RS232, 19200 baud, 3-wire connection Power Output: 2 x 5W (HF) + 20W (LF) with protective limiter Alarm Outputs: 1.
  • Page 43 Reference Monitors RM-4C8 Mains Input: Filtered 3-pin IEC male, continuously rated Physical Specification 85 - 264VAC, 47 - 63Hz, fused 2A, 60W peak, Dimensions (Raw): 48cm (W) x 30.5cm (D) x 4.4cm (H) (1U) 30W average 19” (W) x 12” (D*) x 1.7” (H) (1U) Dimensions (Boxed): 57cm (W) x 52cm (D) x15cm (H) DIP Switch Settings (Underneath The Unit, See Fig 2-6)

  • Page 44: Rm-Hd1 Reference Monitor 3G/Hd/Sd-Sdi Expansion Card

    PCM audio channels within an 3G/HD/SD-SDI video signal. provide a re-clocked output to pass to external equipment such as another reference monitor. The RM-HD1 card can be used with the RM-2S4, RM-2S10 and RM-4C8 monitors. Maximum Audio Delay Through RM-HD1...

  • Page 45: Technical Specification For Rm-Hd1

    Reference Monitors RM-HD(E)1, RM-E1X & RM-E1B Technical Specification For RM-HD1 SDI Specification Physical Specification Dimensions (Raw): 15cm (W) x 11.5cm (D) x 3.1cm (H) SDI Input: 1 x BNC, 3G/HD/SD-SDI 5.9” (W) x 4.5” (D*) x 1.2” (H) (1U) SDI Outputs: 1 x BNC, 3G/HD/SD-SDI, Re-clocked Dimensions (Boxed): 25cm (W) x 20cm (D) x 10cm (H)

  • Page 46: Rm-Hde1 Reference Monitor 3G/Hd/Sd-Sdi & Dolby® E Expansion Card

    Reference Monitors RM-HD(E)1, RM-E1X & RM-E1B RM-HDE1 Reference Monitor 3G/HD/SD-SDI & Dolby® E Expansion Card This expansion board allows the monitoring of embedded audio channels the Dolby Digital 5.1 or Dolby E 8 channel signal, using the 4 bar-graph within an 3G/HD/SD-SDI video signal. The embedded audio can be either meters.

  • Page 47: Technical Specification For Rm-Hde1

    Reference Monitors RM-HD(E)1, RM-E1X & RM-E1B Technical Specification For RM-HDE1 SDI Specification Equipment Type SDI Input: 1 x BNC, 3G/HD/SD-SDI RM-HDE1: 3G/HD/SD-SDI & Dolby® E expansion card SDI Outputs: 1 x BNC, 3G/HD/SD-SDI, Re-clocked Impedance: 75Ω Physical Specification Output Alignment Jitter: <0.2UI Dimensions (Raw): 15cm (W) x 11.5cm (D) x 3.1cm (H)

  • Page 48: Rm-E1X Dolby E Decoder Xlr Aes Expansion Card

    Reference Monitors RM-HD(E)1, RM-E1X & RM-E1B RM-E1X Dolby E Decoder XLR AES Expansion Card & RM-E1B Dolby E Decoder BNC Expansion Card For RM-4C8 These expansion boards for the Reference Monitor RM-4C8 allow the Dolby data is decoded and passed to the Reference Monitor as either monitoring of a digital audio stream containing either Linear PCM or Dolby®...

  • Page 49: Technical Specification For Rm-E1X And Rm-E1B

    Sonifex website, see Reference Monitor SCi Remote Control Software on page 62. Fitting An Expansion Card Please note DIP switch 10 should be set to off for RM-2S4 units. To install an RM-HD1, RM-HDE1 RM-E1X or RM-E1B expansion card into a Reference Monitor, follow the procedure below.

  • Page 50: Reference Monitor Rm-4C8 With An Rm-E1X, Rm-E1B Or

    Reference Monitors RM-4C8 with RM-HDE1, RM-E1X or RM-E1B Reference Monitor RM-4C8 with an RM-E1X, RM-E1B or RM-HDE1 Dolby Decoder Expansion Card Fig 4-1: Dolby RM-4C8 Front Panel Operation of The RM-4C8 With The RM-E1X or Front Panel Buttons & States Mode Ø...

  • Page 51: Downmix Mode

    Reference Monitors RM-4C8 with RM-HDE1, RM-E1X or RM-E1B group contains one or more Dolby encoded audio streams then the unit will When a Dolby E encoded stream is presented to the input of the expansion enter Dolby mode. This mode works by selecting the active channel pair card then this will be a downmix of the currently selected program.

  • Page 52: Multichannel Monitoring Mode

    Reference Monitors RM-4C8 with RM-HDE1, RM-E1X or RM-E1B Multichannel Monitoring Mode Dolby E Program Channel Assignment Config or Dolby This mode is used to individually monitor and meter all the channels within Digital Coding Mode Ch 1 Ch 2 Ch 3 Ch 4 Ch 5 Ch 6 Ch 7 Ch 8 the Dolby encoded stream.

  • Page 53: Dual Metering Split Scale

    Reference Monitors RM-4C8 with RM-HDE1, RM-E1X or RM-E1B Each channel can be selectively routed to each loudspeaker using the two rotary Source selectors as in normal operation. When selecting channel numbers greater than 4, the indicator will wrap around to the top and all the source indicators, with the exception of the current selection will be illuminated a light green colour.

  • Page 54: Serial Interface Commands & Responses Protocol

    1). ignored. Responses will be CR & LF terminated. The front panel lock setting is not stored when power is lost. After power up a welcome string is sent – “Initialising Sonifex Reference Monitor…done” Gaa: - Get user-variable equalisation coefficients...
  • Page 55 ACK: UID:* - Unit ID Request UID:RM4:V11yyyy x = option number (1…F in hex) or UID:RM-2S4-xxxxxx yy = new value for option parameter (00…FF in hex) or UID:RM-2S10-xxxxxx All OPT settings are stored in non-volatile memory and or UID:RM-4C8-xxxxxx retained during power loss.
  • Page 56 It is recommended that this be done 12dB=4.0, etc) using the Sonifex SCi remote control package, but it may also be done using the command protocol provided and the “Send Text File” (or similar) facility First, the following intermediate values should be calculated: in text-based terminal programs such as Hyperterminal.

  • Page 57: Download The Latest Sci Software

    SCi Remote Control Software 6. Reference Monitor SCi Remote Control Software Sonifex SCi software is free of charge software available to control the Click ‘File’, then ‘Save’. Reference Monitor range of audio monitors, as well as other Sonifex products, using either RS232 or USB connections.

  • Page 58: Sci For Reference Monitors

    SCi Remote Control Software SCi For Reference Monitors Bank & Source Selection & Editing The graphical interface allows you to control the Reference Monitor On the left hand side of the ‘Main’ tab you have the ability to select Banks remotely.

  • Page 59: Front Panel Modifiers

    SCi Remote Control Software If an optional Dolby Decoding card is fitted, then Dolby Decoded channels A Front Panel Lock button is also included and when active disables the and Dolby Decoded Programs can be monitored. One of the benefits functionality of the Reference Monitor front panel.

  • Page 60: Fig 6-7: Sci User Eq Screen

    SCi Remote Control Software then that preset is loaded in. If not, then the EQ settings are shown as a ‘Recalled Preset’. This can be saved as a New Preset if you wish. To Delete an EQ Preset, select the Preset and then press the Delete button at the top of the screen.

  • Page 61: Dolby Metadata

    SCi Remote Control Software Dolby Metadata The ‘Dolby’ screen allows Dolby metadata to be viewed if an optional Dolby Decoding card has been fitted. Fig 6-10: Dolby Screen Showing Dolby E Metadata Fig 6-9: Dolby Screen Showing Dolby Digital Metadata...

  • Page 62: Firmware Updates

    SCi Remote Control Software Firmware Updates Firmware Files can be downloaded from our website: http://www.sonifex. co.uk/technical/software/index.shtml#refmon Open Sci and click on the ‘System’ tab and then on the ‘Update Firmware’ button. The update Process will now begin. You will now see the following window: Fig 6-11: SCi Update Firmware Option Screen Browse to the Firmware File.
  • Page 63 SCi Remote Control Software Once the firmware has been updated the unit will reboot. After a few seconds SCi will reconnect and the new firmware version will be reported in the bottom of the window to confirm the update was successful.
  • Page 64 . s o n i f e x . c o . u k t:+44 (0)1933 650 700 f:+44 (0)1933 650 726 sales@sonifex.co.uk...

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