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20

Advanced audio features

Program Limiter

High performance digital limiters are provided for each output with control over attack time, release time 

and threshold parameters - see details below. This level of control allows the user to balance the required 
subjective  quality  of  the  limiter  against  the  driver  protection  requirements.  It  does  also  mean  that  an 
incorrectly set limiter may sound awful! In particular, as with all limiters, using too fast an attack or release 
time will result in excessive low frequency distortion. In the Design a Crossover sub-menu there is an option 
for automatic limiter time constants. Use this option if you are unsure how to set the time constants manually. 
We recommend the use of the automatic setting.

In this mode the time constants will be automatically set from the High-Pass filter frequency according to 

the table below.

The time constants are set by the high pass filter frequency for that channel.

Manual de Usuario

DSP-2040

Содержание DSP-2040

Страница 1: ...uipo lea la secci n Precauciones de seguridad de este manual Conserveestemanualparafuturasconsultas Before operating the device please read the Safety precautions section of this manual Retainthismanu...

Страница 2: ...60065 2001 If the fuse needs to be replaced please pay attention to correct type and ratings Unplug this apparatus during lightning storms earthquakes or when unused for long periods of time Do not i...

Страница 3: ...icitar reparaci n en garant a es imprescindible que el producto no haya sido previamente manipulado e incluir una fotocopia de la factura de compra All our products are warrantied against any manufact...

Страница 4: ...al use Part 2 Immunity l EN 50581 2012 Technical documentation for the assessment of electrical and electronic products with respect to the restriction of hazardous substances Cumple con los objetivos...

Страница 5: ...cription Rear panel description Operating the device Editing audio parameters Input channels Editing audio parameters Output channels Input ganging and output ganging Memory structure Security and loc...

Страница 6: ...DSP 2040 User s Manual...

Страница 7: ...erface may also be fitted to allow remote memory recalls using simple switch closure apparatus Security lock out is available for all controls Features Superb audio quality carefully optimised double...

Страница 8: ...o the default screen 2 3 4 5 ENTER 6 BYPASS 7 QUIT 8 Rotary Encoders Three velocity sensitive encoders adjust the relevant parameters as displayed on the screen Input Sections Control and monitor inpu...

Страница 9: ...nnector for connection to a PC 3 Audio Outputs 3 pin XLR sockets are provided for each channel All are fully balanced pin 2 hot pin 3 cold pin 1 screen 4 Audio Inputs 3 pin XLR sockets are provided fo...

Страница 10: ...NTER Use the BACK or NEXT key to select Design a crossover and then press ENTER Finally use the BACK or NEXT key to select the desired routingand follow the set up wizard to finalise your design Note...

Страница 11: ...nput Channel Makeup The diagram below shows the processing available on each of the four input channels before routing to the matrix Output Channel Makeup The diagram below shows the processing availa...

Страница 12: ...LOW OUTPUT 40 1Hz 1 62kHz HIGH OUTPUT 1 62kHz 22 2kHz HIGH OUTPUT 1 62kHz 22 2kHz 2 x 2 way crossover As shown each input feeds a pair of outputs odd numbers being the low frequency split and even num...

Страница 13: ...ll four outputs with input B unused The crossover points can be adjusted as desired Note Input B will be muted and cannot be unmuted OUTPUT 1 15Hz 149Hz OUTPUT 2 149Hz 1 31kHz OUTPUT 3 1 31kHz 8kHz OU...

Страница 14: ...press ENTER The EDIT key will illuminate for output 1 as will any relevant input EDIT keys showing which inputs are feeding output 1 The display will also detail the current combination of inputs feed...

Страница 15: ...Input parametric EQ The display shows IPA Input A Gain Input Gain 6 0dB IPA Input A Delay Base Delay 0 00mS IPA Input A PEQ 1 1k00Hz Q 3 0 0 0dB Use the GAIN allow to change its value Pressing ENTER...

Страница 16: ...non inverted phase Output delay The maximum available delay between any input and output is 650mS For example if the input delay on channel A is set to 500mS the maximum available output delay for any...

Страница 17: ...e slope High Low Freq Overlap will be displayed Note that to access the 48dB Octave filters parametric bands 6 7 need to be bypassed or set to 0dB If they are not the message Bypass PEQ s 6 7 To Acces...

Страница 18: ...er be exceeded The release time can be automatically linked to the high pass filter frequency so that it is set to a value appropriate for the output s frequency range If this feature is enabled the d...

Страница 19: ...g 3 4 4 must be selected and then ganged to 3 Outputs cannot share more than one ganging set so for example output 3 cannot be ganged to 2 and 4 unless they are ganged together as well Effectively 3 a...

Страница 20: ...also combinations Input Xover These and all combinations of memory types appear in the GLOBAL MEMORY Sub Menu and its operation warrants a little more explanation Selecting to STORE or RECALL using th...

Страница 21: ...hange all the parameters Note that storage and erasure of memories does not follow quite the same rules being simpler in its operation Selecting Input and Crossover during a Store will skip any memori...

Страница 22: ...tput parameters the crossover sections are completely locked All mutes remain active Xover Trim Mute As for Xover Trim but additionally output mutes are locked Input mutes remain active Changes Only A...

Страница 23: ...ntarily After a few seconds the unit will ask for a security code Use the EDIT keys in the same manner as for entering lock codes see page 20 for details and enter 2121 The display will show Enter XTA...

Страница 24: ...may sound awful In particular as with all limiters using too fast an attack or release time will result in excessive low frequency distortion In the Design a Crossover sub menu there is an option for...

Страница 25: ...urning the signal down will be in the order of several hundred milliseconds at best This will only be true if he is not distracted in reality it may be several seconds before any gain reduction is imp...

Страница 26: ...similar results but with the penalty of delaying the main signal by the amount of look ahead delay introduced The D Max limiter which appears in output lists just following the traditional limiter has...

Страница 27: ...speaker manufacturer s specification Have a release time which is sufficiently long to avoid the limiter itself modulating the program Be intelligent enough to adjust the envelope of the limiter accor...

Страница 28: ...ossover filter settings Time Alignment A further advantage of the DSP 2060 over conventional products is the provision of an independently adjustable delay section for each output This allows the true...

Страница 29: ...gh Shelf shown InA Input A HSF 1 1k00Hz Q 3 0 0 0dB Remember to change filter types press BYPASS to bypass the filter and then use ENTER to select the filter type The shelving EQ has adjustable freque...

Страница 30: ...l adjust the damping of the filter so that low Q settings show less overshoot at the turnover frequency but also slower roll off Remember that Q is 1 Bandwidth so the higher the Q the lower the Bandwi...

Страница 31: ...ad 600 ohms Max Level 20dBm into 600 ohms MUTE ON OFF Frequency Resp dB 20Hz 20kHz Dyn Range 116dB 20Hz 20kHz unweighted Distortion 02 1kHz 18dBm Maximum Delay 650 mS Min Step Size 0 3uS Input Gain 6d...

Страница 32: ...88 DAS 4 USA DAS Audio Asia PTE LTD 3 Temasek Avenue Centennial Tower 34 36 Singapore 039190 Tel 65 6549 7760 DAS Audio Group S L C Islas Baleares 24 46988 Fuente del Jarro Valencia SPAIN Tel 34 96 13...

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