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Sonifex Reference Monitors RM Series User Handbook Manual

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Reference Monitors
User Handbook
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

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Summary of Contents for Sonifex Reference Monitors RM Series

  • Page 1 Reference Monitors User Handbook 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...
  • Page 2 Information in this document is subject to change without notice and does not represent a commitment on the part of the vendor. Sonifex Ltd shall not be liable for any loss or damage whatsoever arising from the use of information or any error contained in this manual.

  • Page 3: Table Of Contents

    Ordering the Correct Mains Lead Installation Information Atmosphere Electromagnetic Radiation WEEE & RoHS Directives - Sonifex Statement Reference Monitors Introduction RM-2S4 Reference Monitor, 2 LED meters & 4 stereo channel inputs RM-2S10 Reference Monitor, 2 LED meters & 10 stereo channel inputs...
  • Page 4 FIGURES Figures Fig A: Packing List Fig 2-7a: Meter Labelling Options Fig B: Power Connections Fig 2-8: Brightness Control Fig C: Mains Lead Table Fig 2-9: Phase Meter Display Fig 1-1: RM-2S4 Reference Monitor Front Panel 3 Fig 2-10: Balance Control Fig 1-2: RM-2S10 Reference Monitor Front Panel 3 Fig 2-11: Status LEDs Fig 1-3: Reference Monitor Block Diagram...

  • Page 5: Warranty

    WARRANTY Warranty Warranty and Liability Important: the purchaser is advised to read this clause The Company agrees to repair or (at its discretion) replace Goods which are found to be defective (fair wear and tear excepted) and which are returned to the Company within 12 months of the date of despatch provided that each of the following are satisfied: notification of any defect is given to the Company immediately upon its...
  • Page 6 WARRANTY Subject to conditions (a) and (c) from the time of despatch of the Goods from the Company’s premises the Purchaser shall be responsible for any defect in the Goods or loss, damage, nuisance or interference whatsoever consequential economic or otherwise or wastage of material resulting from or caused by or to the Goods.

  • Page 7: Unpacking The Reference Monitor

    Sonifex Ltd in the UK. For your own records you should write down the serial number (which can be found on the rear of the Reference Monitor.

  • Page 8: Safety Information

    Reference Monitor, please contact your supplier, because an IEC connector is always supplied from the Sonifex factory. If for any reason, you need to use the Reference Monitor with a different power cable, you should use the following wiring guidelines.

  • Page 9: Ordering The Correct Mains Lead

    SAFETY INFORMATION Ordering the Correct Mains Lead When ordering a Reference Monitor from Sonifex, it is helpful if you can specify your required operating voltage and mains lead. After the product code add: UK, for 230V, UK 3 pin to IEC lead...

  • Page 10: Weee & Rohs Directives - Sonifex Statement

    It gives a contact for individuals who are unsure about the correct procedure when the product has reached its “end of use”. Sonifex Ltd will be happy to give you information about local organisations that can reprocess the products, or alternatively all products that have reached “end of use” can be returned to Sonifex and will be reprocessed correctly free of charge.

  • Page 11: Reference Monitors Introduction

    REFERENCE MONITORS Reference Monitors Introduction The Reference Monitor Range is a series of rack-mount audio monitors, combining the latest DSP technology with outstanding audio enclosure design to produce monitors of the highest standards with exceptional sound quality, a comprehensive feature set and good looks in the rack. Uniquely an embedded 5 band parametric EQ allows you to configure the monitor for your environment or to suit your listening tastes.
  • Page 12 REFERENCE MONITORS use near CRTs and TFT displays and each speaker uses a separate, highly efficient class-D switching amplifier. Even cable lengths to and from the speaker enclosures have been kept short to reduce any potential microphonic induction. DSP Based Design The use of a modern electronic architecture allows a much better audio performance to be realised.

  • Page 13: Rm-2S4 Reference Monitor, 2 Led Meters & 4 Stereo Channel Inputs

    REFERENCE MONITORS RM-2S4 & RM-2S10 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 The RM-2S4 and RM-2S10 are 1U rack-mount units offering quality loudspeaker monitoring and accurate, high-resolution metering of up to four (RM-2S4) or twenty (RM-2S10 both analogue and digital) stereo audio sources and more with the addition of optional...

  • Page 14: System Block Diagram

    Sonifex SCi Windows-based remote control software. Source selection, status monitoring and unit ID functions, plus firmware updates to add extra functionality, are all accessible remotely via both USB and RS232 connections in conjunction with Sonifex SCi software. The open control protocol also allows operation with terminal programs or customised applications.

  • Page 15: Front Panel Indicators & Controls

    REFERENCE MONITORS RM-2S4 & RM-2S10 Front Panel Indicators & Controls Fig 1-4: RM-2S4 Front Panel Controls Fig 1-5: RM-2S10 Front Panel Controls Power LED The POWER LED illuminates whilst internal power is present within the unit. If this indicator is not on, the most likely reason is simply the absence of mains power, but under fault conditions it may also indicate a ruptured mains fuse or a problem with the internal power supply module.
  • Page 16 REFERENCE MONITORS RM-2S4 & RM-2S10 than four (RM-2S4) or ten (RM-2S10) Sources, it will not be possible to select unimplemented Sources. When mains power is removed, the currently selected Source is stored in non-volatile memory and recalled instantly once power is restored. Auto-Selection of Inputs As standard, the RM-2S4 has auto-selection of the inputs, i.e.

  • Page 17: Fig 1-8: Rm-2S4 & Rm-2S10 Meters

    REFERENCE MONITORS RM-2S4 & RM-2S10 Bank Source Sdi Channel SDI Audio Monitored Channel Group 1 + 2 3 + 4 EXT A 5 + 6 7 + 8 9 + 10 11 + 12 EXT B 13 + 14 15 + 16 The lock indicator is used to display the channel active bits in the control packet.

  • Page 18: Fig 1-9: Rm-2S4 & Rm-2S10 Dipswitch Settings

    REFERENCE MONITORS RM-2S4 & RM-2S10 By default, the meters reflect exactly what is being heard from the loudspeakers including any front panel signal modifiers that are active, i.e. they are “output” meters. For example, if Middle+Side processing is active (see the appropriate section of this manual), the upper meter will display the Middle signal and the lower meter will display the Side.

  • Page 19: Fig 1-10: Meter Labelling Options

    REFERENCE MONITORS RM-2S4 & RM-2S10 Amber Meter Scale 0dBFS Red Section Section SW9 SW10 SW11 Characteristics Range* Reference Starts at* Starts at* Dual PPM + -13 to +18dBu 0dBu +8dBu Standard VU +13dBu BBC PPM or EBU -13 to +18dBu 0dBu +8dBu PPM**...

  • Page 20: Fig 1-11: Brightness Control

    REFERENCE MONITORS RM-2S4 & RM-2S10 Once the desired meter characteristic has been chosen, proper scale labelling may be ensured by removing the appropriate scale from the backing paper and applying it to the recess provided between the two meters. Brightness Control The brightness of the bargraph meters and all other front panel indicators may be adjusted to suit user preference or to match similar units nearby.

  • Page 21: Fig 1-14: Status Leds

    REFERENCE MONITORS RM-2S4 & RM-2S10 balance control fully to the left increases the volume of the left-hand loudspeaker by 6dB and attenuates the right by 6dB, and vice-versa. LEVEL Control The LEVEL, or volume, control is a rotary potentiometer allowing volume adjustment of the internal loudspeaker system, the headphone output and optionally the line level outputs (see Line Level Audio Outputs on page 17).

  • Page 22: Audio Modifiers

    REFERENCE MONITORS RM-2S4 & RM-2S10 applied). The only solution is to reduce the input level and/or the amount of input gain being applied; allowing clipping to persist will irreversibly degrade the audio performance. 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 23 REFERENCE MONITORS RM-2S4 & RM-2S10 approximately two seconds and the button will flash periodically to show that this control is active. To turn the audio delay off, simply perform the same procedure. The DIM audio modifier affects the audio as normal. Before this function can be used, it must first be enabled through the SCi software in the system screen.

  • Page 24: Rear Panel Connections & Operation

    REFERENCE MONITORS RM-2S4 & RM-2S10 The PHASE INVERT modifier will affect the loudspeaker audio, line-level audio outputs, phase meter reading and also, by default, the main meter readings (refer to the Main Meters section of this manual). Being able to invert the polarity of one channel of the monitoring is very useful. For example, sometimes being able to put the speakers deliberately out of phase is useful to identify the presence of a phase error elsewhere in the signal chain.

  • Page 25: Fig 1-18: Rm-2S4 & Rm-2S10 Dipswitch Settings

    REFERENCE MONITORS RM-2S4 & RM-2S10 It is strongly recommended that the digital input termination is set to ON at all times. Failure to do so may result in unreliable reception of digital input signals and/or crosstalk between sources. Input Gain Adjustment For both analogue and digital sources the default input gain is zero, i.e.
  • Page 26 REFERENCE MONITORS RM-2S4 & RM-2S10 Audio Inputs (RM-2S4) Three-pin female XLR connectors are provided for the connection of up to four stereo audio sources. Together, these four stereo sources comprise BANK A. The pin assignations are as follows: Pin 1: Ground Pin 2: In-phase signal (“hot”)
  • Page 27 REFERENCE MONITORS RM-2S4 & RM-2S10 AES/EBU Input 5+ Analogue Input 3L+ Analogue Input 8L+ 19 AES/EBU Input 5- Analogue Input 3L- Analogue Input 8L- Ground Ground Ground 20 AES/EBU Input 6- Analogue Input 3R- Analogue Input 8R- AES/EBU Input 6+ Analogue Input 3R+ Analogue Input 8R+ 21 AES/EBU Input 7+...
  • Page 28 REFERENCE MONITORS RM-2S4 & RM-2S10 The signals may be unbalanced without loss of level by linking pins 1 and 3 and taking the unbalanced signal from pin 2. The line-level outputs may be configured either as analogue (using both output XLRs) or AES/EBU digital (attach to the left-hand XLR of the pair and leave the right-hand XLR unconnected).

  • Page 29: Reference Monitor Volume & Balance Remote

    REFERENCE MONITORS RM-2S4 & RM-2S10 * Link this pin to pin 6 via a 10kohm resistor to enable remote volume balance, (this must also be enabled in the Sci system screen). ** Please note both remote volume and balance are enabled by pin 15 so both must be set to a voltage level.
  • Page 30 (e.g. Hyperterminal) or custom software may be developed for specific requirements – see the section of this manual on the serial command protocol for further information. Sonifex SCi software is available free of charge from the sonifex website - www.sonifex.co.uk...

  • Page 31: Technical Specification Rm-2S4 & Rm-2S10

    REFERENCE MONITORS RM-2S4 & RM-2S10 Technical Specification RM-2S4 & RM-2S10 Inputs Audio Inputs (RM-2S4): 4 x stereo analogue or AES/EBU digital (autoselecting) Audio Inputs (RM-2S10): 10 x stereo analogue, plus 10 x stereo AES/EBU digital Max Level (0dB Input Gain): +18dBu (analogue)/0dBFS (digital) CMRR: >60dB typical Input Impedance:...
  • Page 32 REFERENCE MONITORS RM-2S4 & RM-2S10 User-Variable Equalisation Type: Parametric Bands: Five Centre Frequency: 200Hz to 18kHz Bandwidth: 0.25 to 2 octaves Boost/Cut: ±12dB Programming: Via USB/serial control port Amplifier/Loudspeakers Configuration: Three-way with stereo mid/high-frequency drivers & mono low-frequency driver Power Output: 2 x 5W (HF) + 20W (LF) with protective limiter Crossover: 500Hz (3rd order Butterworth)
  • Page 33 REFERENCE MONITORS RM-2S4 & RM-2S10 Line-Up Level: According to selected characteristic Phase Metering Type: 5-segment, indication at 0, 45, 90, 135 and 180 degrees Remote Control USB: Slave device, 19200 baud Serial: RS232, 19200 baud, 3-wire connection Alarm Outputs: 1. Audio underlevel/fail (latching) 2.
  • Page 34 REFERENCE MONITORS RM-2S4 & RM-2S10 DIP Switch Settings (Underneath The Unit, See Fig 1-17) Block 1 (RM-2S4 & RM-2S10) Audio Output Analogue ON Digital OFF Audio Output Analogue ON Digital OFF Audio Output Digital ON Analogue OFF Audio Output Digital ON Analogue OFF Output Level Fixed ON...
  • Page 35 REFERENCE MONITORS RM-2S4 & RM-2S10 Digital Input Termination Input 2 110Ω ON Unterminated OFF SW10 Digital Input Termination Input 1 110Ω ON Unterminated OFF SW11 Unused Set to OFF SW12 Unused Set to OFF Equipment Type RM-2S4 Reference Monitor, 2 LED meters, 4 stereo channel inputs RM-2S10 Reference Monitor, 2 LED meters, 10 stereo channel inputs Physical Specification...

  • Page 36: Rm-4C8 Reference Monitor, 4 Led Meters, 8 Channel Inputs & Dual Selectors

    Sonifex SCi Windows-based remote control software. Source selection, status monitoring and unit ID functions, plus firmware updates to add extra functionality, are all accessible remotely via both USB and RS232 connections in conjunction with Sonifex SCi software. The open control protocol also allows operation with terminal programs or customised applications.

  • Page 37: System Block Diagram

    REFERENCE MONITORS RM-4C8 Optional additions to the RM-4C8 include SDI video 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 38: 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 39 REFERENCE MONITORS RM-4C8 Bank Selector Pressing the left-hand Source selector knob inwards steps sequentially through all available input Banks (groups of four inputs). Each press moves the selected Bank onwards by one step; once the last available Bank is selected, a further press returns the selection to the first available Bank.

  • Page 40: Fig 2-5: Rm-4C8 Meters

    REFERENCE MONITORS RM-4C8 Main Meters The main meters are quad 26-segment, multicoloured LED bargraphs, displaying the four Sources in the currently selected Bank. The meters behave as “input” meters, i.e. they are not affected by front panel signal Modifiers such as Middle+Side or Cut. Several different characteristics are available for the meters to suit different applications and regional preferences.

  • Page 41: Fig 2-7: German Ppm Labelling Options

    REFERENCE MONITORS RM-4C8 AES Digital PPM -52 to 0dBFS +18dBu -18dBFS 0dBFS -54 to DIN PPM +18dBu 0dBu +4dBu +5dBu Standard VU -24 to +3VU +18dBu -4VU -59 to Extended VU +18dBu -4VU +15VU -54 to German PPM #+15dBu -54dBu +7dBu +15dBu AES Digital PPM...

  • Page 42: Fig 2-8: Brightness Control

    REFERENCE MONITORS RM-4C8 Once the desired meter characteristic has been chosen, proper scale labelling may be ensured by removing the appropriate scales from the backing paper and applying them to the recesses provided between the meters. Brightness Control The brightness of the bargraph meters and all other front panel indicators may be adjusted to suit user preference or to match similar units nearby.

  • Page 43: Fig 2-11: Status Leds

    REFERENCE MONITORS RM-4C8 LEVEL Control The LEVEL, or volume, control is a rotary potentiometer allowing volume adjustment of the internal loudspeaker system, the headphone output and optionally the line level outputs (see Line Level Audio Outputs on page 37). A usable control range of 36dB is provided, and with the volume control in the fully anti-clockwise position the signal is completely muted.

  • Page 44: Audio Modifiers

    REFERENCE MONITORS RM-4C8 The digital audio inputs of the RM-4C8 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 45 REFERENCE MONITORS RM-4C8 an external signal is active. The CUT modifiers will affect the loudspeaker audio, line-level audio outputs and phase meter reading. Speaker Cut Control The CUT L audio modifier has a secondary function which is used to mute the speakers and is similar to the SPEAKER MUTE remote input pin.

  • Page 46: Rear Panel Connections & Operation

    REFERENCE MONITORS RM-4C8 Rear Panel Connections & Operation Fig 2-13: RM-4C8 Rear Mains Power Power is applied to the unit via a standard three-pin IEC male socket. Mains voltages between 85 and 264V AC and frequencies between 47 and 63Hz are accepted without adjustment. The Earth pin MUST be connected to ensure safety.
  • Page 47 REFERENCE MONITORS RM-4C8 Note that the application of extra input gain reduces the maximum signal level permitted before signal clipping occurs. The front panel CLIP indicator illuminates at the onset of clipping, with extended illumination indicating that the input gain should be reduced and/ or the input signal levels attenuated.
  • Page 48 REFERENCE MONITORS RM-4C8 Output Format Output Level SW1 & 2 SW3 & 4 Analogue Variable Both ON Both OFF Analogue Fixed Both ON Both OFF AES/EBU Digital Variable Both OFF Both ON AES/EBU Digital Fixed Both OFF Both ON The line-level output signals are always affected by the setting of the front-panel audio Modifiers, with one exception - DIM only affects the line-level outputs when Variable output level is selected.
  • Page 49 The data format is 19200 baud with 8 data bits, even parity and 1 stop bit. XON/XOFF flow control is used when necessary. Sonifex SCi software, when installed on a suitable PC, provides straightforward graphical access to all remote control and configuration options via both RS232 and USB interfaces.

  • Page 50: Technical Specification Rm-4C8

    Hyperterminal) or custom software may be developed for specific requirements – see the section of this manual on the serial command protocol for further information. Sonifex SCi software is available free of charge from the sonifex website - www.sonifex.co.uk Technical Specification RM-4C8...
  • Page 51 REFERENCE MONITORS RM-4C8 Crosstalk: Analogue I/O, ref 0dBu 1kHz Input: <-90dB 10kHz input: <-85dB Audio Modifiers Modifier Selection: Illuminated front panel pushbuttons DIM: Reduces speaker audio level by 10dB CUT L & CUT R: Mutes left/right speaker audio MONO: Combines left and right audio inputs PHASE INVERT: Inverts phase of right audio input M+S:...
  • Page 52 REFERENCE MONITORS RM-4C8 Characteristics: Selectable by switch from: 1. Dual BBC PPM + standard VU 2. BBC PPM IEC60268-10 11a 3. EBU PPM IEC60268-10 11b 4. Nordic PPM IEC60268-10 1 5. AES/EBU digital PPM IEC60268-18 6. DIN PPM DIN45406 7. Standard VU IEC60268-17 8.
  • Page 53 REFERENCE MONITORS RM-4C8 Headphones: 1/4” (6.35mm) A-gauge 3-pole stereo jack socket USB: Type B socket. Serial: D-sub 9-pin female. Remote I/O: D-sub 15-pin male. Mains Input: Filtered 3-pin IEC male, continuously rated 85 - 264VAC, 47 - 63Hz, fused 2A, 60W peak, 30W average DIP Switch Settings (Underneath The Unit, See Fig 2-6) Block 1 Audio Output...
  • Page 54 REFERENCE MONITORS RM-4C8 Physical Specification Dimensions (Raw): 48cm (W) x 30.5cm (D) x 4.4cm (H) (1U) 19” (W) x 12” (D*) x 1.7” (H) (1U) Dimensions (Boxed): 55cm (W) x 43cm (D) x18cm (H) 21.7” (W) x 16.9” (D*) x 7.1” (H) (1U) Weight: Nett: 4.5kg Gross: 5.9kg...

  • Page 55: Rm-Hd1 Reference Monitor 3G/Hd/Sd-Sdi Expansion Card

    Reference Monitor unit for monitoring. Any group can be selected and can also be optionally delayed by up to ~300ms by using the Sonifex SCi remote control software. All channels in the selected group can be monitored visually and 2 channels can be selected to be monitored on the speakers (for the RM-2S4 and RM-2S10, stereo pairs are selected;...

  • Page 56: Technical Specification For Rm-Hd1

    REFERENCE MONITORS RM-HD(E)1, REFERENCE MONITORS RM-4C8 RM-E1X & RM-E1B Technical Specification For RM-HD1 SDI Specification SDI Input: 1 x BNC, 3G/HD/SD-SDI SDI Outputs: 1 x BNC, 3G/HD/SD-SDI, Re-clocked Impedance: 75Ω Output Alignment Jitter: <0.2UI Output Level: 800mV +/- 10% Return Loss: <15dB at 1500MHz SDI Supported Standards: 270Mbps, SMPTE-259M-C (SD)

  • Page 57: Rm-Hde1 Reference Monitor 3G/Hd/Sd-Sdi & Dolby® E Expansion Card

    REFERENCE MONITORS RM-HD(E)1, REFERENCE MONITORS RM-4C8 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 within an 3G/ HD/SD-SDI video signal. The embedded audio can be either non-encoded linear PCM, Dolby®...

  • Page 58: Technical Specification For Rm-Hde1

    REFERENCE MONITORS RM-HD(E)1, REFERENCE MONITORS RM-4C8 RM-E1X & RM-E1B Technical Specification For RM-HDE1 SDI Specification SDI Input: 1 x BNC, 3G/HD/SD-SDI SDI Outputs: 1 x BNC, 3G/HD/SD-SDI, Re-clocked Impedance: 75Ω Output Alignment Jitter: <0.2UI Output Level: 800mV +/- 10% Return Loss: <15dB at 1500MHz SDI Supported Standards: 270Mbps, SMPTE-259M-C (SD)

  • Page 59: Rm-E1X Dolby E Decoder Xlr Aes Expansion Card & Rm-E1B Dolby E Decoder Bnc Expansion Card For Rm-4C8

    REFERENCE MONITORS RM-HD(E)1, REFERENCE MONITORS RM-4C8 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 monitoring of a digital audio stream containing either Linear PCM or Dolby* encoded audio.

  • Page 60: Technical Specification For Rm-E1X And Rm-E1B

    REFERENCE MONITORS RM-HD(E)1, REFERENCE MONITORS RM-4C8 RM-E1X & RM-E1B AES / S/PDIF Dolby or S/PDIF Receiver Decoder Channels Input Reference Monitor or S/PDIF AES / S/PDIF Output Transmitter Fig 3-7: RM-E1X/B Block Diagram Technical Specification For RM-E1X and RM-E1B AES Input/Output 110Ω...

  • Page 61: Fitting An Expansion Card

    Reconnect your Reference Monitor to the mains supply and check operation. Update the Reference Monitor’s firmware to the latest version using the Sonifex SCi software. The firmware is downloadable from the Sonifex website, see Reference Monitor SCi Remote Control Software on page 62.

  • Page 62: Reference Monitor Rm-4C8 With An Rm-E1X, Rm-E1B Or Rm-Hde1 Dolby Decoder Expansion Card

    REFERENCE MONITOR RM-4C8 WITH REFERENCE MONITORS RM-4C8 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 RM-E1B Fitted When the RM-4C8 is fitted with an RM-E1X or RM-E1B expansion card, it can be used to decode and monitor Dolby®...

  • Page 63: Operation Of The Rm-4C8 With The Rm-Hde1 Fitted

    REFERENCE MONITOR RM-4C8 WITH REFERENCE MONITORS RM-4C8 RM-HDE1, RM-E1X OR RM-E1B Operation of The RM-4C8 With The RM-HDE1 Fitted When the RM-4C8 is fitted with an RM-HDE1 expansion card, it can be used to decode and monitor Dolby E or Dolby Digital encoded data streams embedded within an 3G/HD/SD- SDI video source.

  • Page 64: Program Select Mode

    REFERENCE MONITOR RM-4C8 WITH REFERENCE MONITORS RM-4C8 RM-HDE1, RM-E1X OR RM-E1B Program Select Mode A Dolby E source can contain up to and including 8 programs, each of which can be individually downmixed and monitored through the Reference Monitor. When a Dolby E source is presented to the expansion card input, it is possible to select each of these programs by entering the Program Select mode.

  • Page 65: Table 4-1: Program Configurations For Dolby E

    REFERENCE MONITOR RM-4C8 WITH REFERENCE MONITORS RM-4C8 RM-HDE1, RM-E1X OR RM-E1B Dolby E Program Channel Assignment Config or Dolby Ch 1 Ch 2 Ch 3 Ch 4 Ch 5 Ch 6 Ch 7 Ch 8 Digital Coding Mode 5.1 + 2 1LFE 5.1 + 2 x 1 1LFE...

  • Page 66: Dual Metering Split Scale

    REFERENCE MONITOR RM-4C8 WITH REFERENCE MONITORS RM-4C8 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 67: Serial Interface Commands & Responses Protocol

    Further commands sent before the first command is acknowledged will be ignored. Responses will be CR & LF terminated. After power up a welcome string is sent – “Initialising Sonifex Reference Monitor…done” Remote Control Commands Command...
  • Page 68 SERIAL INTERFACE COMMANDS & RESPONSES Command Description Response LCK: - AES/EBU PLL Lock status Request Response depends on model type: RM-2S4 responds: LCK:x Where: x = lock status of selected stereo source. No further lock information is available. RM-2S10 responds: LCK:x+yyyyyyyyyy Where: x = lock status of selected stereo source.
  • Page 69 The internal firmware of the Reference Monitors can be updated to take advantage of newly added features. It is recommended that this be done using the Sonifex SCi remote control package, but it may also be done using the command protocol provided and the “Send Text File”...
  • Page 70 SERIAL INTERFACE COMMANDS & RESPONSES If using a terminal program, to achieve reliable data transfer the Line Delay (found under File>Properties>Settings>ASCII Setup in Hyperteminal) should be set to 20ms. It is vital that neither the serial connection nor mains power to the Reference Monitor should be interrupted during the update process.
  • Page 71 SERIAL INTERFACE COMMANDS & RESPONSES User-Variable EQ Parameter Format The DSP coefficients for the user-variable EQ need to be pre-calculated before being sent to the Reference Monitor. Each band of EQ is a parametric equaliser with the following parameters: = centre frequency in Hz, BW = bandwidth in octaves = height of peak/trough at centre frequency (linear, so 6dB=2.0, 12dB=4.0, etc) First, the following intermediate values should be calculated:...

  • Page 72: Reference Monitor Sci Remote Control Software

    Before the Reference Monitor can be used with the SCi software, you need to install the latest version of the USB drivers. These can be found on the Sonifex website located in the ‘Sonifex Reference Monitor’ section of Software Downloads: http://www.sonifex.co.uk/technical/software/index.shtml...

  • Page 73: Fig 6-2: Sci Device Discovery Panel

    SCI REMOTE CONTROL SOFTWARE Fig 6-2: SCi Device Discovery Panel Your attached Reference Monitor(s) will be shown in the list. If they are not listed, check the cable(s) between the Reference Monitor and your PC. Fig 6-3: SCi Device Information Panel Close the device dialog by clicking on the cross in the top right corner.

  • Page 74: Sci For Reference Monitors

    SCI REMOTE CONTROL SOFTWARE SCi For Reference Monitors The graphical interface allows you to control the Reference Monitor remotely. Bank/Source Selection, Dolby Decoding Channel and Program options, front panel Modifier controls, EQ parameter adjustment, firmware updating, Dolby metadata and miscellaneous options can all be accessed and adjusted from this main panel.

  • Page 75: Front Panel Modifiers

    SCI REMOTE CONTROL SOFTWARE If an optional Dolby Decoding card is fitted, then Dolby Decoded channels and Dolby Decoded Programs can be monitored. One of the benefits of using SCi for the monitoring is that the multiple channel names and Program names can be shown. Fig 6-7: SCi Main Screen Showing Dolby Digital Programs Front Panel Modifiers These are a replication of the front panel Reference Monitor functions which offer ‘Dim,...

  • Page 76: Fig 6-8: Sci User Eq Screen

    SCI REMOTE CONTROL SOFTWARE Fig 6-8: SCi User EQ Screen You can navigate through the rest of the Band edit boxes by either clicking in them with your mouse, or by using Tab on your keyboard. The values in the edit boxes can also be adjusted manually by typing in values.

  • Page 77: Firmware Updates

    SCI REMOTE CONTROL SOFTWARE Firmware Updates The ‘Misc’ screen shows the Update Firmware option and other miscellaneous options available, such as enabling Presence Detection. Click on the Update Firmware button to install new firmware on the connected Reference Monitor. This screen can also be used to update firmware on the optional Dolby Decoding card.
  • Page 78 NOTES Reference Monitors User Handbook...
  • Page 79 NOTES Reference Monitors User Handbook...
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