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Logic Digital Controller

User Guide version 3

Page 6 of 31

Thanks and Unpacking

Thank you for choosing a Logic System Digital series loudspeaker management system for your

application. Please spare a little time to study the contents of this manual, so that you obtain

the best possible performance from this unit.

All Logic System products are carefully engineered for world-class performance and reliability. If

you would like further information about this or any other Logic System product, please contact

us. We look forward to helping you in the near future.

Unpacking the LOGIC SYSTEM Digital series processor

After unpacking the unit please check carefully for damage. If damage is found, please notify

the carrier concerned at once. You, the consignee, must instigate any claim. Please retain all

packaging in case of future re-shipment.

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Summary of Contents for DP2140

Page 1: ...Logic Digital Crossover logic system DP2140 2160 User Guide R 3 0 8 0 3 2 0 1 0...

Page 2: ...e is shown with its current value below Where appropriate parameters are grouped according to function For example the parametric equalisation page shows centre frequency width and gain Turning a para...

Page 3: ...ore and Recall 9 Channel Select Buttons 9 Edit Select Buttons 10 Text Display 10 Parameter Knobs 10 Output Signal Limiter Indication 10 Mute Buttons and Status LEDs 10 Secure Button on the rear 11 Rea...

Page 4: ...e version 3 Page 4 of 31 Stereo Mono Formats 18 DSP processing 19 Input Channels 19 Output Channels 21 Utilities 25 Factory Presets 26 EQ and Filter Response Graphs 27 Technical Specification 30 Gener...

Page 5: ...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 the apparatus the apparatus has been exp...

Page 6: ...Logic System products are carefully engineered for world class performance and reliability If you would like further information about this or any other Logic System product please contact us We look...

Page 7: ...y Features Linea Research minimal signal path design Sonically superb ADC DAC combination a carefully matched pairing of the best devices from Burr Brown and Wolfson Newly released family of Analogue...

Page 8: ...t need to know how to drive the front panel A detailed explanation of the front and rear panel controls and indicators is contained in the next section The final section describes each individual func...

Page 9: ...at 19 dBu Preset Store and Recall These controls provide access to the 45 presets stored within the device Pressing the store button allows the user to name a preset and choose which memory location...

Page 10: ...rs or parameter pages are omitted when not relevant Parameter Knobs Three velocity sensitive parameter knobs are used to adjust parameters shown on the display Up to three parameters at a time are dis...

Page 11: ...Secure Mode Switch Expansion Port Power Inlet The LOGIC SYSTEM Digital series unit should be connected to a suitable mains electricity supply using the cable supplied The processor has a switch mode...

Page 12: ...erformance The intention being that the amplifiers the processor is driving should be responsible for the grounding of their input cable shields Communications Port Connector Logic System Digital seri...

Page 13: ...y crossover frequencies output delay and some EQ s are hidden those settings that are a function of the loudspeaker cabinet design and should not require adjustment for different applications To recal...

Page 14: ...b will change the value of the parameter showing in the leftmost zone of the display and so on Turn a knob clockwise to increase the value of a parameter or anti clockwise to decrease it The knobs are...

Page 15: ...When you go past the last page you will be returned to the default page The channel buttons allow you to scroll in either direction through the input and output channels whilst trying to maintain the...

Page 16: ...asis for user Presets but they have some parameters that are predefined as a function of the loudspeaker system These parameters are hidden from the user as they should be constant regardless of appli...

Page 17: ...r User Guide version 3 Page 17 of 31 The user can overwrite non protected Presets only if an attempt is made to save a Preset in a location already occupied by a basic or Factory Preset a LOCKED PRESE...

Page 18: ...variety of applications There are two Formats Mono or Stereo With the Mono format all outputs have unique parameter settings and all outputs are identical in terms of processing functions and routing...

Page 19: ...n A Delay 1 50ms a b c a Knob A Delay adjustable in variable steps from 0 to 400ms The delay parameter is adjustable in fine steps at low values the adjustment becomes progressively coarser as the val...

Page 20: ...ssel Linkwitz Riley and Hardman Filter slopes of up to 4th order or 24dB octave are provided Not all filter types are available in all slopes For example 18dB octave Linkwitz Riley filters do not exis...

Page 21: ...z 1 4Q 0 0dB a b c a b c Knob A Centre Frequency 10 0Hz to 25 6kHz in variable steps Knob B Width display selectable Q or BW Bandwidth BW adjustable from 0 05 to 5 octaves in variable steps Q adjustab...

Page 22: ...50k LR24 a b c a b Knob A Frequency out 10 0Hz to 25 6kHz out Knob B high pass filter type Filter type is selectable from Butterworth Bessel Linkwitz Riley and Hardman Filter slopes of up to 8th orde...

Page 23: ...0Hz to 25 6kHz in variable steps Knob B Slope 6 to 12dB octave in 1dB steps Knob C Gain 15dB in 0 2dB steps The frequency is specified as point where the filter deviates by 3dB from the gain value Out...

Page 24: ...iter 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 Routing...

Page 25: ...n contrast utility control sets the base contrast of the screen and also allows optimization for a given viewing angle Parametric equalisation width parameters can be displayed in either Q or bandwidt...

Page 26: ...version 3 Page 26 of 31 Factory Presets location preset name out1 out2 out3 out4 out5 out6 Basic default programs 1 basic stereo 100 100 1K 1K 100 100 1K 1K 2 basic mono full range full range full ran...

Page 27: ...EQ and Filter Response Graphs 100 1 10 3 1 10 4 36 30 24 18 12 6 0 6 6dB Oct 12dB Oct 18dB Oct 24dB Oct 48dB Oct Butterworth Frequency Hz Magnitude dB 100 1 10 3 1 10 4 36 30 24 18 12 6 0 6 12dB Oct...

Page 28: ...ler User Guide version 3 Page 28 of 31 100 1 10 3 1 10 4 36 30 24 18 12 6 0 6 12dB Oct 24dB Oct Bessel Frequency Hz Magnitude dB 100 1 10 3 1 10 4 36 30 24 18 12 6 0 6 4th Order 8th Order Hardman Freq...

Page 29: ...3 Page 29 of 31 100 1 10 3 1 10 4 15 10 5 0 5 10 15 Low shelf varying Gain High shelf varying Slope Shelving EQ Frequency Hz Magnitude dB 100 1 10 3 1 10 4 15 10 5 0 5 10 15 Varying Gain Varying Bandw...

Page 30: ...and mute 0 2dB steps Output Ch Source Input A Input B and SUM HP filter frequency Off 10Hz to 25 4kHz 1 36 octave steps LP filter frequency 10Hz to 25 4kHz and off 1 36 octave steps LP HP filter type...

Page 31: ...de version 3 Page 31 of 31 Logic System Pro Audio Ltd Units 5 6 Sandars Road Heapham Road industrial Estate Gainsborough Lincolnshire DN21 1XT T 44 0 1427 611791 F 44 0 1427 677008 E sales logic syste...

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