User Manual
Contents
1. A U D O o 260 FSI Ta eit eT Contents N O U W COPYRIGHT INFORMATION THANK YOU SAFETY INFORMATION FRONT PANEL REAR PANEL OPERATION DIGITAL SIGNAL PROCESSING DSP CONTROLS UTILITIES TECHNICAL SPECIFICATION QUICK REFERENCE WARRANTY The information in this document is subject to change without notice LA Audio makes no warranty of any kind with respect to the material in this document and shall not be liable for errors contained herein or for incidental or consequential damages related to the use of the material No part of this document may be reproduced without the prior written consent of LA Audio By buying this DLX200 series processor you have joined the ranks of the thousands of professional engineers installers and musicians who choose LA Audio We hope your DLX200 series processor brings you many years of enjoyable DSP system management This manual should get you up to speed with the DLX200 s capabilities controls and specifications It also details safety precautions that must be taken for the safe use of this equipment Please take the time to read this information carefully and store this manual for future reference THIS EQUIPMENT MUST BE EARTHED DO NOT EXPOSE TO RAIN OR MOISTURE Please read carefully and keep the following instructions and safety information Heed all warnings and follow all instructions Do not remove covers There are no user serviceable parts inside ple2. Source HP Filter Frequency LP Filter Frequency LP HP Filter Types Delay Limiter EQ Frequency EQ Gain EQ Width 2 gt 10kQ Electronically balanced 20dBu 4 DLX240 6 DLX260 lt 1000 Ground Balanced 20dBu into 6000 load 96kHz 24bit 2 to 40kHz 3dB Filters disabled 20Hz to 20kHz 0 5dB Filters enabled lt 0 01 10dBu 20Hz to 20kHz 30kHz bandwidth gt 112dB A weighted 22kHz bandwidth gt 109dB Unwighted 22kHz bandwidth 38 4kbaud format 8 data stop no parity 80 to 20dB and Mute 0 24 steps Input A Input B and SUM Off OHz to 25 4 kHz 1 36 octave steps 2 to 25 4kHz and off 1 36 octave steps 12 18 amp 24 dB oct Bessel and Butterworth 12 24 amp 48 dB oct Linkwitz Riley 4th or 8th order Hardman Input 400ms Output 80ms High Performance Limiter adjustible threshold in 0 2dB steps automatic time constants 2 to 25kHz 1 36 octave steps 5 to 15 0 2dB steps 0 1 to 5 0 octaves bandwidth 1 36 octave steps Audio Inputs Audio Outputs Serial Comms Network Comms Mains Mains Power Power Consumption Dimensions Weight 3 pin Female XLR 3 pin Male XLR 9 pin D type Neutrik EtherCon 3 pin IEC Universal switch mode PSU 85 to 250V AC 50 60 Hz lt 25W 44H 482W 254D mm 2 7kg Net METERS Delay HPF Low Shelf x High Shelf O O O se O 5 E r ao Sum
3. are locked and cannot overwritten you edit a base preset to your heart s content and then store your new settings into any unlocked location i e not or 2 Details of the base presets and a space for noting your own preset details can be found in Appendix A To store the current settings press Store the button label will illuminate and the store page will appear Use parameter knob FI to select a storage location Once you ve chosen a location the other two knobs to enter your own preset name F2 selects characters while moves along the screen Pressing the Store Button again completes the process and stores the Preset Pressing any other button will cancel the operation F1 F2 F3 Preset Name Store 32 ly Syste DLX 26 F1 F2 F3 STORE STORE O Select store Name preset Y location If you see LOCKED PRESET this means that you re trying to store your settings in location or 2 This is where the base presets are stored so go find somewhere else to put your settings To select an existing preset press the Recall Button the button label will illuminate and the recall page will appear Turn parameter knob until the required preset number is shown on the display Base Presets are indicated by a box symbol appearing after the preset number Press the Recall Button again to activate the Preset You will be asked to confirm one more time and if you re really really sure pre
4. locations and 2 cannot be overwritten Navigate past the last channel or before the first to Utilities page 2 Use knob FI to select mono or stereo mode Selecting stereo mode will copy the settings from the left side to the right Distance m Delay ms 10 29 4 50 1471 100 294 Navigate to the desired channel
5. 6dB Routing METERS Delay HPF Low Shelf ow High Shelf O O Oy xat om Routing Delay HPF LPF Low Shelf p acu High Shelf MUTE LA Coe 1 Meters unit 64B Page Channels Fl F2 F3 Notes Gain Ins Outs Gain dB Delay Ins Outs Delay ms In lt 400ms Out lt 80ms HPF Ins Outs Freq Hz Filter type and 4th or 8th order LPF Outputs only Freq Hz Filter type and See above Hi Shelf Ins Outs Freq Hz Slope Ceci Gain dB LoShelf Ins Outs Freq Hz Slope dB oct ain dB ParaEQ Ins Outs Freq Hz Width g 6 bands per channel Limiter Outputs only Threshold dBu Routing Outputs only Source Input A input B or sum A B Utilities Screen EQ display Q or BW octaves Utilities 2 Preset Mono or Stereo Format Ensure that any current unsaved settings are stored Press Recall Use knob FI to select a preset Press Recall to select the preset and Recall again if you re certain Base presets Mono and Stereo are stored in locations and 2 respectively Pressing any other button will cancel the operation Set the unit as desired Press Store Q Use knob FI to select a preset location Use knobs F2 characters and F3 cursor to create a preset name Press Store to write to the preset location Storing will overwrite any existing settings stored in the selected preset location Base presets in
6. ase refer servicing to qualified service personnel This equipment must be earthed Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus Only use attachments accessories specified by the manufacturer Servicing is required when the apparatus has been damaged in any way such as the power supply cord or plug is damaged liquid has been spilled or objects have fallen into he apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped This product complies with both the EMC Directive 89 336 EEC and the Low Voltage Directive 73 23 EEC as issued by the Commission of the European Community Compliance with these directives imply conformity with the following European standards EN60065 Product safety 55103 1 Electromagnetic Interference Emission EN55103 2 Electromagnetic Susceptibility Immunity This product is intended for operation in the E2 commercial amp light industrial and E3 urban outdoors Electromagnetic Environments Input Store Channel LCD Parameter Output Limit Meters Button Select Buttons Screen Encoders Indicators d e af g B d ORAS 1 M C9 e DLX 260 gt Parameter Output Mute Recall Button Select Buttons Buttons A pair of 8 segment LED bargrap
7. er i e the Octave Bandwidth will be wider The variation in actual Q can be between almost nothing in a Constant Q design to considerable in a Proportional Q design An additional source of error can result from confusion between Q and Octave Bandwidth At least one other manufacturer calculates Octave Bandwidth by simply assuming that it is the reciprocal 1 of Q This would indicate that a Q of would be an Octave Bandwidth of In fact a Q of is really an Octave Bandwidth of 1 39 A clearer indication of the scale of the error is apparent with a Q of 4 5 which is actually one third of an octave The reciprocal of 4 5 would imply that it is only one fifth of an octave A simple rule of thumb to convert Octave Bandwidth to Q is to divide the Square Root of 2 71 414 by the Octave Bandwidth Alternatively to convert Q to Octave Bandwidth divide the square root of 2 by Q Although this is not 10096 accurate it will return an error of less than 2 between Q values of and 10 F1 F2 F3 Out1 Thresh LIM 4 dB DLX 26 F1 Fl Threshold 40dBu to 20dBu in 0 2dB steps A high performance low distortion limiter is provided on each output Threshold is user adjustable all other parameters are carefully calculated dependant on configuration to provide clean and effective control of signal dynamics The front panel limit indicators show when the threshold is reached For system protection this module cannot be bypas
8. erformance The intention being that the amplifiers being driven by the processor should be responsible for the grounding of their input cable shields A momentary button is recessed into the rear panel between the output XLRs and RS232 port When activated this will disable all the front panel controls so they cannot affect the signal path making the unit secure against tampering When in secure mode the indicators still operate normally Note that the communications port is still active in secure mode Allows PC control using PodWare For more information see your PodWare user guide or go to www laaudio com ED The unit will power up as soon as power is applied to the IEC inlet as there is no power switch During the start up process the firmware application model number and version numbers are displayed and the outputs muted until the unit has completed its internal checks this should take around 5 10 seconds Once the start up routines are complete the processor will restore the settings as they were previous to the unit being powered down and gradually ramp up the audio signal to its correct level Pressing the channel select buttons will scroll through the channels then through utilities and back to the default screen The currently selected channel is shown in the top left hand corner of the display When operating in stereo mode more on this shortly the channel selection will reflect this by showing the names of both pai
9. gressively steeper allowing you to create more precise crossovers with less overlap Because of their nonlinear shape dB octave measurements are not truly representative of Hardman filters responses they are always described by their order rather than their slope F1 F2 F3 Out 1 Freq Slope EQ gt 1Q Hz 212 DLX 26 Fl Frequency 10 0Hz to 25 6 in variable steps F2 Slope 6 to I2dB octave IdB steps F3 Gain I5dB 0 2dB steps The frequency shown is the turnover point where the filter deviates by 3dB Out 1 Freq Width Gain 50 10 Hz 6 DLX 267 Fl Centre Frequency 10 2 to 25 6kHz in variable steps F2 Width display selectable for either Q or bandwidth BW See utilities below to change view options BW adjustable from 0 05 to 5 octaves in variable steps Q adjustable from 14 2 to 0 2 in variable steps F3 Gain I5dB in 0 2dB steps o Care should be taken when importing the EQ settings from other speaker management units as the results may not be quite what you expect This is because the 3 parameters of Frequency Boost Cut and Q or Octave Bandwidth do not give a complete definition of the actual filter shape Although Frequency and Boost Cut are absolute values Q or Octave Bandwidth is generally only correct at one Boost Cut setting This is usually at or near maximum boost or cut At all lower settings the actual Q will be low
10. h meters indicate input level for each channel These read peak level from signal present at 40dBu to clip warning at 19dBu When the clip warning light first illuminates there is an additional IdB of headroom available as a safeguard These controls provide access to the unit s 45 presets To see them in action go to page 10 The currently selected channel is displayed on the top left hand corner of the LCD Pressing the channel buttons scrolls through the available input and output channels and finally through the utility functions If the current preset is stereo linked the screen will show the channel pairing whose parameters will both be edited The currently selected edit page is displayed on the bottom left corner of the LCD Pressing the edit select buttons moves through the available parameters for the currently selected channel The main display shows preset channel parameter and status information In most screens the currently selected channel is displayed on the upper line and the edit parameter on the lower line These velocity sensitive encoders are associated with the current on screen parameters For example the value shown on the screen above the letter Fl is controlled by knob Fl Two LEDs are provided for each output channel These show the signal level relative to the limiter threshold The green LED will light when the signal is 6dB below the threshold and the red limit LED will light when the limiter thresho
11. ld is reached Each output has a mute button and associated status LED Note that the mute buttons do not function when the Secure mode is activated See below for details of Secure mode Power BVNet Comms Secure Audio Audio Inlet Card Slot Port Button Outputs Inputs 8 u MADE IN NGLAND x 2 e A zc 30 2 50 60 RS232 OUT 6 OUT5 OUT 4 OUT3 OUT 2 1 The LA Audio DLX200 series unit should be connected to a suitable mains electricity supply using the cable supplied The processor has a switch mode power supply that is capable of operating with a nominal mains voltage of 85V to 240V 50 60Hz without re configuration To allow for future developments See www laaudio com for all news and product information All audio connections are fully balanced and wired pin ground pin 2 hot amp pin 3 cold The two inputs have connected directly to the chassis and feed the signal processing chains If an unbalanced source is used a connection should be made between the pin 3 cold signal and the ground connection of the unbalanced source The processed outputs are impedance balanced and wired pin ground pin 2 hot and pin 3 cold An unbalanced input may be driven by connecting pin 3 cold signal to the ground connection of the unbalanced destination input Note that output pin l s are ground lifted at audio frequencies but connected to ground at RF for good EMC p
12. minating the need to make identical parameter adjustments for each channel The channel pairing is differs for four and six output units x Lee dptA Output Output lInutB Oupu4 Oupu5 Output This section describes each of the DSP modules and its controls As you can see from the diagram above some modules are common to both inputs and outputs while some are specific to one or the other Consequently this section describes all DSP functions with notes where they are channel specific F1 F2 F3 Out1 Gain 0 els DLX 26 F1 Fl Gain adjustable in 0 2dB steps from 80 dB to 20dB Out Delay 1 S DLX 26 F1 Fl Delay adjustable in variable steps from 0 to 400ms F1 F2 F3 Out 1 Freq Shape LPF 1Q Hz a n DLX 26 F1 F2 Fl Frequency lt lt out 10 0Hz to 25 6kHz out gt gt F2 Filter shape slope The bottom left hand corner of the display will indicate whether the filter is high or low pass As you can see from the diagram above input channels have one high pass filter while outputs have one high and one low pass Filter shape and slope is selectable from Butterworth Bessel Linkwitz Riley and Hardman Filter slopes of up to 8th order or 48dB octave are provided although not all filter types are available in all slopes The Hardman type filter is particularly interesting Rather than following a linear slope Hardman filters become pro
13. red channels lt CHANNEL gt F1 F2 F3 Out 1 Freq Width Gain lt PARAMETER gt EQ1 100Hz 1 4Q 0 0dB DLX 260 Pressing the edit navigation buttons gives access to the various pages of parameters available for each channel The currently selected page is shown in the bottom left hand corner of the display The screen shows up to three parameters for a given part of the processing functions on a given channel The edit buttons allow you to scroll in either direction through the different processing pages for a given Channel When you go past the last page you will be returned to the default page If you re scrolling through channels and notice that the edit page has changed fear not this is probably because the selected channel doesn t have the selected edit parameters For example inputs do not have a low pass filter Your DLX200 processor has 45 presets each of which capture a complete snapshot of the unit s settings Aside from the unit s two Base Presets described below you are free to store settings wherever you wish To save confusion over which preset does what your DLX200 also allows you to name your presets with text labels Just how sensible they are is entirely up to you The unit has two Base Presets mono and stereo These are empty templates from which you can quickly configure your own settings They are stored in locations and 2 respectively Although the base presets
14. sed but setting the threshold to its maximum level will cause limiting only when it is absolutely necessary F1 F2 F3 Out Source A DLX 26 F1 Fl Output source selectable Input A Input B or Sum A B In mono mode this selects the source for a given output In stereo mode routing is preset to the format shown above on page 12 Two utility pages are provided to adjust infrequently used settings These can be found by pressing the channel buttons until you pass the last output or before input Util Screen ParaEQ ll 22 iS 26 DLX 26 Utility page sets system wide display parameters Screen contrast allows you adjust the display for different viewing angles Parametric EQ bandwidths can set to display as values or in octaves F1 F2 F3 Util Mode 2 o DLX 26 F1 Utility page 2 sets the current format to mono or stereo Care should be taken when swapping between mono and stereo mode as the parameter set for the left hand channels will be copied to and overwrite the right hand settings This is not reversible and could be a real pain if you ve just spent ages setting up the right side of your system For more information on formats see page 12 Inputs Input Impedance Maximum Input Level Outputs Output Impedance Maximum Output Level Sample Rate Bit Depth Frequency Response THD Dynamic Range Serial Comms Data Gain Output Channel
15. ss recall again As with storing pressing any other button cancels the operation F1 F2 Preset Name 2 System DLX 260 Select preset Sure Really really to recall I sure STORE 40 40 Recalling a preset will clear the currently loaded settings To keep these or save changes to an existing preset first store them as described above before attempting to recall another preset Inappropriate crossover settings for a given system can cause expensive sometimes irreparable damage to attached devices such as amplifiers and loudspeakers Be certain before recalling a preset that any attached devices are muted and that you check settings before passing audio METERS Delay HPF Low Shelf 6 x Parametric EQ High Shelf O O Pu 1 J O se E A 2 l MA Sum 6dB Routing METERS Delay HPF Low Shelf 6 x Parametric EQ High Shelf O O 12 ZN 1 m va v Routing Delay HPF LPF Low Shelf 6 x Parametric EQ High Shelf MUTE D d Meters Formats affect the way the above DSP modules are controlled In Mono format all outputs have unique parameter settings and flexible routing Stereo format pairs the inputs and outputs for stereo operation the parameters of each member of the pair being identical The routing of inputs to outputs is fixed This format is intended for symmetrical stereo operation eli
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