V2.
Quick Start Quick Reference Quick Start - Quick Reference 1 Check the Mains Voltage setting on the rear of the FDS-388/380 Omnidrive and install into a rack. Connect the mains to the unit and check that it powers up. 2 Connect the two audio inputs and up to eight audio outputs. Do not put any audio through the unit at this time. Refer to Sections 2.0 thru 2.7 'Installation' FDS-388 Omnidrive FDS-380 Install 1 The user will need to load a program suitable for the PA system in use.
Please Read This! Using This Manual Please Read This! - Using This Manual This manual has been written to make the understanding and operation of the FDS-388 Omnidrive as easy as possible. Because the Omnidrive is a relatively sophisticated software product, we have included several ways to find the information you require in this manual. You will have already found a Quick Reference on the previous page to get the user going from scratch.
Contents Contents 1.0 1.2 1.1 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 3.0 3.1 Introduction 7 Other features OMNIDRIVE TM Loudspeaker Management System 7 7 Installation 8 Unpacking Mechanical Requirements Mains Power Voltage Setting Safety Earthing AC Power Fusing Rear panel Controls Output Section 8 8 9 9 10 10 11 12 14 4.0 Getting Around the FDS-388 15 5.0 Default Screen 20 6.0 Default Utility Screen 22 7.0 Delay Screen 24 8.0 Delay Utility Screen 26 9.
Contents 16.0 Recall Screen 41 17.0 File Utility Screen 42 18.0 PCMCIA Card 43 Smart Card Format Card Types 43 43 System Security 45 18.2 18.1 19.0 19.1 19.2 19.3 19.4 19.5 19.6 Program Lock Lock Mode On OWNER Lock OEM Lock Safe OEM Hide Screen 45 45 45 46 46 47 20.0 Meteorology 49 21.0 FDS-380 Omnidrive Install 50 21.1 21.2 21.3 FDS-380 Controls Midi Operation PC Card Operation 50 51 51 22.0 Service section 52 22.1 22.2 23.0 A.1 A.
Introduction 1.0 Introduction 1.1 OMNIDRIVE TM Loudspeaker Management System The OMNIDRIVETM system represents a radical step forward in DSP processing for loudspeaker management, incorporating BSS’s vast experience in crossover design and combining two channels of 4-way crossover, parametric equalisation, digital delay lines and limiters, and is designed for use in all areas of sound control.
Installation Unpacking Mechanical Requirements 2.0 Installation 2.1 Unpacking As part of BSS Audio Ltd’s policy of quality control, this product is carefully checked before packing to ensure flawless appearance and that it reaches you in first class condition. After unpacking the unit, please inspect it for any physical damage. If any damage has occurred, notify your dealer immediately. A written claim for damages can then be initiated. The Warranty, Section 21.
Mains Power Voltage Setting 2.3 Mains Power Refer to Section 2.6 'Installation' - AC Power and Fusing. WARNING! THIS APPLIANCE MUST BE EARTHED. IMPORTANT: The wires in the mains lead are colour coded in accordance with the following code. Green and Yellow......Earth Blue......Neutral Brown......Live As the colours of the wires in the mains lead may not correspond with the markings identifying the terminals in your plug, proceed as follows.
Safety Earthing AC Power Fusing 2.5 Safety Earthing 2.6 AC Power Fusing The Green and Yellow wire of the mains cord must always be connected to an installation Safety Earth or Ground. The Earth is essential for personal safety as well as the correct operation of the system, and is internally connected to all exposed metal surfaces. Any rack framework into which this unit may be mounted is assumed to be connected to the same grounding circuit.
Rear panel 2.7 Rear panel A Mains power input B Fuse C Power voltage selector D Meteorology probe connector Refer to Section 20.0 Meteorology and Section 8.0 Delay Utils Screen. E 8 Band outputs The FDS-388 audio outputs are electronically balanced and floating. Transformer balancing is available as a retrofit option. Pin 1 Pin2 Pin3 F Shield/Ground Signal Hot (+) SignalCold (-) 2 Channel inputs The FDS-388 audio inputs are electronically balanced.
Controls 3.0 Controls Fig 3.1 Front panel A Soft Keys Many of the editing screens have one or more soft key labels down the left hand side of the display (Fig 3.2). Each corresponds to one of the three soft keys. The soft keys are most often used to select a type of parameter. The individual parameter to adjust is selected by pushing the encoder. Fig 3.2 Soft Key labels Refer to Section 4.0 Getting Around B +10dB indicator This led is lit when the rear panel +10dB switch is on. Refer to Section 4.
Controls H Utility Key The Utility Key takes the user in and out of each edit screen's utility area. The led is lit when in a utility screen. Refer to Section 4.0 Getting Around J Left/Right/Split Keys These keys control which channel or channels the user is adjusting and which channel is viewed. The leds serve to indicate whether the left and right channels are set with the same values. Refer to Section 4.
Output Section 3.1 Output Section Fig 3.2 Output Section A Mono led The Mono led reflects the status of the Mono Lo parameter which is set in the XOver Utility Screen. Refer to Section 12.0, XOver Utility Screen - Mono Lo When the led is on, the left and right A bands are summed to produce a mono output. For example a mono low frequency output. B C Output meter Meter legend The output meters are referenced to the band limit threshold.
Getting Around the FDS-388 Split, Left and Right Keys 4.0 Getting Around the FDS-388 4.1 Split, Left and Right Keys The Split keys (Left and Right) are used to select which of the two channels in the FDS-388 is being displayed and whether the user wishes to control one or both of the channels simultaneously. Linked Operation The two leds indicate whether the FDS-388 channels are linked and controlled together or split and controlled individually.
Moving Around the Screens Fig 4.0 FDS-388 Key Map 4.2 Moving Around the Screens Quick Reference Pressing the EDIT key shifts the screen through each of the main editing areas in turn and then back to the main ‘Default’ screen. Pressing and holding the EDIT key will take the user back to the main ‘Default’ screen from any edit screen. Pressing the UTILITY key shifts in and out of each edit screen’s utility page.
Moving Around the Screens The Soft keys have different operations depending on the current screen. Two lines of text for each key on the left hand side of the screen label the key’s function. Turn the encoder knob to adjust the currently selected variable. Press the encoder knob or press and turn the encoder knob to move between the available variables.
The Edit Key The Utility Key After powering up, the FDS-388 performs internal checks and sets up the audio path before releasing the output mute relays. The time before the mute relays open can be set in the Default Utility screen. Refer to Section 6.0, Default Utility Screen. The screen that the FDS-388 now shows is called the Default screen. This shows the overall frequency response of the four output bands and the current program information. The Default screen is covered in more detail in Section 5.
The Soft Keys and Encoder Store and Recall The Xover Utility Screen sets the master slope (in dB per octave) and the shape (Linkwitz-Riley, Butterworth or Bessel) for all crossover edges. Mono low on and off, and the units for the limiter values are also set here. Pressing the Top Soft key in the Xover Utility screen takes the user to the Xover More screen. Refer to Section 12.0, Xover Utility Screen.
Default Screen 5.0 Default Screen Program number Status Swap status Edited flag Band response curves OEM name Program name Humidity correction Quick Reference 1 Press the EDIT key to enter the edit screens. 2 Press STORE or RECALL for the file handling screens. When the FDS-388 is powered up the Default screen is shown. The Default gives a basic representation of the current state of the unit.
Default Screen The current program number is shown in the top left corner of the screen. The program number is displayed with double size digits until the values have been edited and so differ from the last recalled or stored program. Once edited, the program number is displayed with normal size text. An edited program is also indicated with an asterisk in the centre of the top row. The letter (A or B) denotes which backup/swap memory is being used.
Default Utility Screen 6.0 Default Utility Screen Quick Reference Backlight 1 Press the parameter wheel to move between utilities. 2 Turn the parameter wheel to adjust the value. Dim,Low,Mid,High This utility adjusts the brightness of the screen backlight View angle This utility adjusts the viewing angle of the lcd display. Midi Chan 1 to 16 This sets the Midi channel to which the unit sends and responds. Meteorology transmission and reception is not affected by Midi channel.
Default Utility Screen system designer. If the password is entered correctly, the middle soft key will allow the user to enter the OEM Hide Screen. If the password is incorrect, the Lock Mode returns to off. If the user wishes to create a new program and lock areas using OEM hide then they should begin by recalling the default program (program 0) or another program which is not OEM locked. All OEM programs are denoted on the Recall Screen with a diamond next to their name.
Delay Screen 7.0 Delay Screen Soft key titles Main delay Listening position Delay units Band names Band delay representations Main delay reference line Phase adjust Band polarity Band delays Quick Reference 1 To adjust the overall delay for all four bands press the top soft key and turn the parameter wheel 2 To adjust the delay for an individual band press the middle soft key, press the encoder to select a band and turn the parameter wheel to adjust the delay.
Delay Screen Top Soft Key MAIN DELAY Selecting the top soft key allows the user to adjust the overall delay of all four outputs. Alongside the Main Delay value are the units used to display both the Main and Band Delay values. The units can be changed in the Delay Utility screen. Refer to Section 8.0, Delay Utility Screen - Delay Units. Middle Soft Key BAND DELAY Selecting the middle soft key allows the user to adjust a single band delay.
Delay Utility Screen 8.0 Delay Utility Screen Quick Reference Press the parameter wheel to move between utilities. 2 Turn the parameter wheel to adjust the value. Delay Units ms, ft, m This selects the units used for displaying and adjusting both main and band delays on the Delay Screen. ‘ms’ represents milliseconds, ‘ft’ represents feet (and, for short delays, feet and inches) and ‘m’ represents metres.
Delay Utility Screen Note that changing this parameter can cause delay times to shift slightly. If temperature correction is to be used the temperature probe should be plugged in and this mode set to On at the time that the delays are set up. Humidity Adjustable 0 to 100% This is the current percent relative humidity used to correct the high frequency response of a system as the relative humidity of the surroundings change. Refer to Section 20.0, Meteorology for more details.
EQ Screen 9.0 EQ Screen Frequency Filter band and number Band name Swap status Program number Bandwidth or Cursor shelf shape Cut/boost Filter marker OEM name Edited flag Combined EQ and crossover curve Program name Full bandwidth curve Quick Reference 1 Press the parameter wheel to select a filter to adjust. 2 Press the top soft key and turn the parameter wheel to adjust the filter frequency. 3 Press the middle soft key and turn the parameter wheel to adjust the filter bandwidth.
EQ Screen At the bottom of the screen the small arrowheads indicate the filter frequencies in the current band. A solid arrowhead and a dotted vertical cursor are used to represent the current filter. Two curves are displayed on the Eq screen. The solid line represents the resultant response of the filters in the currently selected band as if the band were full bandwidth from 15Hz to 20kHz.
EQ Utility Screen 10.0 EQ Utility Screen Filter Shape Low, Bell, High Each of the available filters in each band can be selected to be low shelving, bell or high shelving. This selection always applies to the currently selected filter in the Eq Screen. The current band name and the band letter and filter number are shown next to this variable for reference. Filter Mode Norm, Phase Filter Mode selects whether or not the user wishes to use one filter per band for phase correction.
EQ Utility Screen 10.1 Dynamic Filter. The dynamic filter works in one of two distinct ways depending on whether the filter selected is in boost or cut mode. In boost As an increasing signal level approaches the dynamic threshold, the boost value of the filter is progressively reduced until the filter is flat when the signal level reaches the dynamic threshold.
XOver Screen 11.0 XOver Screen Master rolloff slope Master rolloff shape Swap status OEM name Program number Edited flag Program name Crossover frequency Band gain Limiter threshold Band edges Band name Quick Reference 1 To adjust a band gain value, press the top soft key, press the parameter wheel to select a band and turn the parameter wheel to adjust.
XOver Screen Top Soft Key Gain/dB Middle Soft Key Limit/dBu (or mV) These gain values are intended to be used for system set up, the front panel gain trim controls being used for fine tuning. The XOver screen gain adjustments give an overall control of ±15dB relative to the channel input. Note that limiter thresholds refer to levels at the outputs and are not affected by the gain settings. The front panel gain trims give an additional ±6dB of adjustment.
XOver Utility Screen 12.0 XOver Utility Screen Quick Reference Press the parameter wheel to move between utilities. 2 Turn the parameter wheel to adjust the value. Master Slope 24, 18, 12dB/Oct Changing this value will change the band edge slopes for all band edges. Refer to Section 13.0 XOver More Screen Master Shape Bessel, Butterw, L-Riley Changing this value will change the band edge shapes for all band edges between Bessel, Butterworth and Linkwitz-Riley.
XOver Utility Screen Top Soft Key Pressing the top soft key in the XOver Utility Screen will take the user to the XOver More screen. See next Section 13.0, XOver More Screen.
XOver More Screen 13.0 XOver More Screen Current edge Current band name Swap status OEM name Program number Edited flag Program name Band edge frequency Band edge high slope Band edges Band edge low slope Quick Reference 1 To change a band name, press the top soft key, press the parameter wheel to select a band and turn the parameter wheel to adjust.
XOver More Screen Top Soft Key NAME Middle Soft Key EDGE SLOPE Bottom Soft Key FR/Hz (Edge Frequency) Each band can be named from a preset selection. The list includes basic names such as 'Band A', 'Band B' etc and also band descriptions such as 'Low' and 'Lo Mid'. These values set individual edge slopes for each band edge. Slopes are selectable between 12, 18 and 24dB per octave.
Store and Recall in the Default Screen Store and Recall in the Edit Screens 14.0 Store and Recall 14.1 Store and Recall in the Default Screen There are two modes of operation for the STORE and RECALL Keys, depending on whether the unit is in the EDIT mode, as shown by any of the blue LEDs being illuminated.
Store Screen 15.0 Store Screen Quick Reference 1 Change to the Default screen and press Store 2 Select the Middle Soft key and turn the parameter wheel to choose the file type and destination 3 Select the Top Soft Key and turn the parameter wheel to select a position to Store the file in. 4 Select the Bottom Soft Key if you wish to enter a new name 5 Press the Store Key a second time.
Store Screen Locking Programs Middle Soft Key TYPE The middle soft key will select the TYPE of storage, which may be adjusted by the parameter wheel from the default INTernal setting to either of the PCMCIA memory card settings; CPrg to store the current program parameters, or CAll to store the entire contents of the internal memory, including all programs, to a PCMCIA memory card. When storing a file to a card program, the file name will default to the current user name.
Recall Screen 16.0 Recall Screen Pressing the RECALL button when no blue EDIT LEDs are illuminated will cause the recall screen to be displayed, with the program number PICK item highlighted. Top Soft Key PICK Middle Soft Key TYPE The parameter wheel may then be turned to select an alternative program number from which to recall the new parameters. As the parameter wheel is turned, a highlight bar will move through the program list, highlighting the name of the selected program location.
File Utility Screen 17.0 File Utility Screen Program Lock Store Trims Top Soft Key FORMAT CARD On, Off Changing this value will change the Program Lock status of the currently selected Internal program. On, Off With Store Trims On, storing a program will add the gain trim values into the internal gain values, ensuring that any gain trims are not lost when programs are later recalled.
PCMCIA Card Card Types Smart Card Format 18.0 PCMCIA Card The Smart Card socket on the front of the unit is designed to use PCMCIA2 memory cards of between 128kbyte and 2Mbyte storage capacity. Files are stored on the card in a ‘Pseudo-floppy’ format using standard DOS structures. See the box at the end of this section for compatibility information. As existing Flash memory cards have erase and re-write limitations, only SRAM memory cards are fully supported in the current Smart card software.
PCMCIA Card The different file types used by the unit have different file extensions as follows. The file sizes should be taken as approximate and may change with new versions of software. Program All data Logo *.XPG *.XAL *.XLO 273bytes 16616bytes 1921bytes The ‘pseudo-floppy’ filing system as used on the unit conforms to the PCMCIA PC CARD standard although it does not format Card Information Structure (CIS) information.
System Security Program Lock Lock Mode 19.0 System Security Any changes made to an audio system have the potential to be damaging, even if only accidentally made. For this reason several different security systems are built in to the FDS-388 to protect the speakers. Each of the security levels locks different groups of variables away from adjustment. 19.1 Program Lock This is a flag that is available for each stored program.
OEM Lock Safe % Files cannot be deleted. & Limiter thresholds cannot be adjusted. The operator can still adjust any variables (except the limiter thresholds) and save the program to an empty program space or over a non-OEM original program. Locking the unit is this way is to allow the Owner of the system protection against operators resetting the FDS-388. This lock mode can only be changed by people who know the Owner Lock password.
OEM Hide Screen 19.6 OEM Hide Screen Quick Reference 1 To change the OEM password press top soft key, press the parameter wheel to select letter and turn the parameter wheel to change the letter. 2 To change the OEM name press middle soft key, press the parameter wheel to select letter and turn the parameter wheel to change the letter. 3 To change OEM hides, press bottom soft key, select item to hide by pressing the parameter wheel, and turn the parameter wheel to toggle the hide status.
OEM Hide Screen Top Soft Key OEM PASSWD Middle Soft Key OEM Name Bottom Soft Key OEM HIDE 48 The OEM password is used to prevent unauthorised access to this screen, and must be entered in the default utils before the OEM soft key will be available Refer to Section 6.0 Default Utility for more details. The default password is BSS and this will become active the first time the Lock Mode is changed to OEM.
Meteorology Humidity Effects 20.0 Meteorology Temperature and humidity cause dramatic changes in the absorption of sound in air over a broad frequency range, which can cause inconsistent sound quality during the course of a performance. The FDS-388, equipped with the optional meteorology probe, can compensate for these effects. Figures 20.1 and 20.2 show the absorption curves under various humidity and temperature conditions at a distance of 25m. The FDS-388 provides absolute compensation.
FDS-380 Omnidrive Install FDS-380 Controls 21.0 FDS-380 Omnidrive Install 21.1 FDS-380 A Midi Channel Select Buttons Controls Pressing either button will display the current midi channel number. Further presses of the upper button will increment the midi channel number, the lower button will decrement it. B +10dB indicator This led is lit when the rear panel +10dB switch is on. C Safe indicator This led is lit when the rear panel Safe switch is on.
Midi Operation PC Card Operation The FDS-380 can be programmed either through the midi interface or by using the PC Card: 21.2 Midi Operation Data can be transferred between any combinations of FDS-380 and FDS-388 using device data dumps. The midi channel is set by pressing one of the two buttons at the left hand end of the front panel using a matchstick or pen top. The first press will display the current midi channel number, further presses will change the channel number.
!!! CAUTION - Important Notes !!! SERVICE SECTION 22.0 Service section 22.1 Transient Suppressor Replacement The primary of the mains transformer within the FDS-388 is protected against high voltage spike interference by two voltage dependent resistors. These provide a short circuit to voltage peaks in excess of their maximum rating.
!!! CAUTION - Important Notes !!! SERVICE SECTION 22.2 100V Tap Conversion A tap change is available on the FDS-388 to allow the unit to work reliably at mains votages down to 90VAC on the 120V setting and 180VAC on the 240V setting. To implement the change proceed as follows: 1 Disconnect mains power and remove the unit's top cover. 2 On the small pcb mounted at the rear of the box on the 120/240V selector locate the purple and brown wires and reverse their positions.
Warranty Information 23.0 Warranty Information This unit is warranted by BSS Audio to the original end user purchaser against defects in workmanship and the materials used in its manufacture for a period of one year from the date of shipment to the end user. Faults arising from misuse, unauthorised modifications or accidents are not covered under this warranty. No other warranty is expressed or implied.
Midi Implementation Appendix A V1.1 A.
Specification and Block Diagram A.2 Specification and Block Diagram Dynamic Range Typically >105dB, Analogue Input/Output, unweighted, 22Hz to 22kHz Frequency Response ±0.25dB, 15Hz-20kHz with filters out Distortion (THD) <0.01%, 20Hz-20kHz @+10dBu Group Delay Distortion <±5us, 20Hz-20kHz Maximum Processing Delay <1.
FDS-380/FDS-388 Messages Appendix B FDS-380/FDS-388 Messages FDS-380 FDS-388 FDS-380 “---”, “-1-”, “-2-”, “-3-”, “BAD”, “C-B”, “DRM”, “E03”, “E04”, “E05”, “E06”, “E07”, “E08”, “E09”, “E10”, “E12”, “E13”, “E16”, “E17”, “E25”, “E26”, “E27”, “E28”, “E30”, “E31”, “E32”, “E33”, “E34”, “E35”, “E36”, “E38”, “E39”, “E41”, “E46”, “E52”, “E54”, “E55”, “E56”, “E57”, “E58”, “FLT”, “FOR”, “G-0”, “L-A”, “L-B”, “LOC”, “NO “, “OFF”, ”Testing” “ON “, ”1 second to all load” “RDY”, ”2 seconds to all load” “REC”, ”3 sec
AES3 Input and Input/Output Boards Fitting The AES3 Input Board Appendix C AES3 Input and Input/Output Boards C.1 Fitting The AES3 Input Board Parts Supplied AES3 input board SC5559 (approx 83mm by 180mm). AES3 PLL board SC5560 (approx 80mm by 65mm). AES3 rear blanking panel (approx 40mm by 70mm). M3 by 6mm screw. M3 nut. Removing the 1 Unplug the unit from the mains supply. Analogue Input Board 2 Remove the 8 screws holding the lid on and the 8 screws holding the base on.
AES3 Input Board Operation Fitting The AES Input/Output Board C.2 AES3 Input Board Operation With the AES3 Input board fitted the operation of the Omnidrive unit is largely unchanged. The dynamic range of the Omnidrive with AES3 input is slightly better than when an analogue input board is fitted and measures greater than 107dB. The Sample Rate item in the Default Utilities screen will display the current AES3 input sample rate as either 44.1kHz or 48kHz.
Fitting The AES Input/Output Board AES3 Input/Output Board Operation Plugging in the AES3 PLL Board 1 Remove the metal can crystal oscillator from the socket CN3 on the analogue input board. There may be a piece of wire holding the oscillator in; remove the wire completely from the board. 2 Plug the AES3 PLL board into the analogue input board. The board should be plugged in with the main part of the AES3 PLL board pointing toward the back of the unit.
Index Symbols * 10dB switch led D 21, 28, 36, 39 11 12, 50 A Absorb Corrn. See Delay Utility Screen absorbtion correction. See humidity correction AES/EBU. See AES3 AES3 input board 58, 59 input selection 23, 59, 60 input/output board 59, 60 sample rate selection 23, 60 audio connections inputs 11 outputs 11 Audio In. See Default Utility Screen audio input switching 23 B backlight. See Default Utility Screen Backup (Store) Key 12, 19, 38 band gain 32 BAND DELAY.
Index Width EQ Screen EQ Utility Screen Dyn Link Dyn Thresh Filter Mode Filter Shape 29 13, 28, 29 30, 31 30 30 30 30 F FDS-380 50 File Allocation Table 43 file types 44 File Utility Screen 42 DELETE FILE 42 FORMAT CARD 42 Program Lock 42 Store Trims 40, 42 Filter Mode. See EQ Utility Screen Filter Shape. See EQ Utility Screen Flash card 43 format 43 FORMAT CARD.
Index OEM Name 47 OEM Password 47 OEM programs 46 OEM Hide Screen 23, 47 OEM PASSWD 48 OEM Name. See OEM Hide; OEM Hide Screen OEM PASSWD. See OEM Hide Screen output meters 14, 33 overall delay 24 Owner Lock 45 P parameter wheel 13 PC 43 PCMCIA Card 43, 44, 51. See also Smart Card phase adjustment 25, 30 POL & PHASE. See Delay Screen polarity 25 power switch 11 Power Up. See Default Utility Screen power up mute 23 program files 44 Program Lock.
User Notes 64
User Notes 65
User Notes 66