LEM DX 24, Owner'S Manual

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Page 2: ...iators heat register or other product that produce heat The product may be connected a power supply only of the type described on the operating instructions or as marked on the product 8 The product m...

Page 3: ...the System 11 Adjusting the input signal 12 First Setup 13 Display information in default conditions 14 System configuration 14 Number of PRESETS 15 Type of PRESET 15 Name of the PRESET 15 PRESET Modi...

Page 4: ...Cutoff Frequency 30 Bandwidth 30 Gain 31 Xover 32 Low Pass Filter 32 High Pass Filter 32 Type of filter 33 Crossover frequency 33 Phase 33 Output EQ 34 Output Gain 35 Output Pol 35 Output Limiter 36...

Page 5: ...42 LCD Contrast 42 Lock submenu 43 How to enable protection 43 Protection mode 43 Password 43 How to disable the protection 44 MID setup submenu 45 Program Change IN 45 Program Change OUT 46 Configur...

Page 6: ...Don t force knobs or switches these are designed and manufactured to respond to light pressure and could be damaged if used with excessive force Take care of your connector cables a very frequent cau...

Page 7: ...s DELAY line 5 BAND PARAMETRIC EQ CROSSOVER HP and LP filters which can be selected from the BESSEL BUTTERWORTH and LINKWITZ RILEY types with slopes up to 48dB phase control with 5 steps through a ful...

Page 8: ...cklit 2x16 display Allows to view the pages of the various menus and the relative parameters PREV NEXT Menu page navigation keys Each menu is made up of several pages which can in turn contain other p...

Page 9: ...UTPUT GAIN parameter EDIT menu IMPORTANT Enabling the LIMITER on any output also changes the way in which the level is displayed on the corresponding LED ladder in this case in fact the level shown on...

Page 10: ...ne unit to the other see DUMP procedure PROGRAM CHANGE commands send receive connecting two DX 24 it s possible when a PRESET is recalled on the first one to send a PROGRAM CHANGE command to the secon...

Page 11: ...tem for connecting INPUTS and OUTPUTS Delay lines in 1 4 output Low pass filters LPF with phase fine control CROSSOVER High pass filters HPF CROSSOVER 5 band parametric equalizers for the outputs Outp...

Page 12: ...rs and functions The navigation i e access to the system s menus and changes of the various parameters follow logical criteria which can be summed up as follows The menu is selected using the MODE key...

Page 13: ...es the last PRESET loaded all the temporary changes if any made to it and the settings of the various options of the system The system then enters default status showing the main operating information...

Page 14: ...tput level setting for your mixer or other unit connected to the input of the DX 24 Then adjust the DX 24 input gain if necessary Press the MODE key until the EDIT menu LED lights up Use the PREV and...

Page 15: ...o the documentation and technical specifications of your power amplifiers loudspeaker enclosures monitors etc This will enable you to work faster and safely Disable the MUTE function on the outputs yo...

Page 16: ...configuration A 1 2 B 3 S 4 4 U 3 W B S B M A X System configuration The bold letters indicate the inputs A Input A B Input B S SUM sum of inputs A and B Numbers 1 2 3 and 4 indicate the respective o...

Page 17: ...LEM enclosures These are the starting points for creating User PRESETS from scratch U User PRESETS can be programmed by users Name of the PRESET A 1 2 B 3 S 4 4 U 3 W B S B M A X Name of the PRESET I...

Page 18: ...indication disappears as soon as stored values are accessed If the PRESET isn t saved temporary changes are lost as soon as a new PRESET is loaded including this same PRESET N B temporary changes are...

Page 19: ...lay Output Delay parameters parameters menu EDIT Input Gain Xover Input EQ Output EQ Output Gain Output Pol Output Limiter parameters parameters parameters parameters parameters parameters parameters...

Page 20: ...ILITY Midi Setup MIDI PrgCh In Ganging Input Ganging Output Ganging Delay Unit Units Lim Thresh Unit Temperature Unit Misc Setup Output Meters Temperature Wake Up LCD Contrast Lock Lock MIDI PrgCh Out...

Page 21: ...s For example it allows to equalize simultaneously and with identical values the two outputs which feed the mid sections of a stereo sound system The Units option UTILITY menu allows to edit the value...

Page 22: ...PAGES OFF 2 INA Delay INB Delay ON 1 INA B Delay OFF 3 INA Delay INB Delay SUM Delay ON 2 INA B Delay SUM Delay OFF 3 INA Delay INB Delay SUM Delay ON 3 INA Delay INB Delay SUM Delay OFF 2 INA Delay I...

Page 23: ...ormally temporarily modified but can t be cancelled overwritten or permanently modified Factory PRESETS contain some specific set tings for certain types of enclosures and all the system s usable conf...

Page 24: ...t A 1 3 B 2 4 3 2 U D e f a u l t Press ENTER The system returns to default status and the display shows the information on the PRESET that has just been loaded A 1 B 2 S 3 4 3 F 2 W M S B M A X N B...

Page 25: ...p e r a H a l l 1 Press ENTER The PRESET Naming page appears by means of which it s possible to edit the name of the PRESET to be saved The name of the start PRESET i e of the PRESET currently loaded...

Page 26: ...d therefore cancels the existing PRESET in the same memory position of the receiving DX 24s RX DX 24 1 DX 24 2 DX 24 3 DX 24 4 Dump Out Preset Incoming Dump Incoming Dump Incoming Dump SEND DUMP ACCEP...

Page 27: ...outputs are equivalent Nevertheless their application is different OUTPUT DELAY INPUT DELAY DELAY Input Delay delays the signal of an input or the sum of the inputs before sending it to the routing sy...

Page 28: ...e set in the following ranges I N A D E L A Y 7 7 m s unit step m 0 0 200 0 0 5 mm 0 200000 7 ms 0 582 1 ms 0 582542 21 INPUT DELAY range The measurement unit can be chosen with the function Delay Uni...

Page 29: ...9 2 s unit step m 0 0 65 0 0 5 mm 0 65000 7 ms 0 189 1 ms 0 189333 21 OUTPUT DELAY range The measurement unit can be chosen with the function Delay Unit UTILITY menu Units submenu 18ms 6 5m OP1 DELAY...

Page 30: ...able form of editing Input Gain Input gain control I n p u t G a i n Allows to adjust the amplification of the signal fed in through Inputs A and B Editing values are in the range 6dB 30dB with 0 5dB...

Page 31: ...the input and the input SUM This component s characteristic quality and programmability identical to the output Equalizer enable it to be used so effectively and flexibly as to make the use of graphic...

Page 32: ...quency of the Peaking curve and Notch filter or the cutoff frequency of Shelving curves I N A E Q 1 P e a k 2 k 0 0 1 0 5 0 Peaking Low Shelving High Shelving Notch 20d B 15d B 10d B 5d B 0d B 5d B 10...

Page 33: ...dB 0 dB 5 dB 10 dB 15 dB 20 dB 10 Hz 100 Hz 1 000 Hz 10 000 Hz 100 000 Hz 20dB 15dB 10dB 5dB 0dB 5dB 10dB 15dB 20dB 10Hz 100Hz 1 000 Hz 10 000Hz 100 000Hz The values can be set in the following range...

Page 34: ...the output it affects and the type of filter are shown O P 1 L P F T h r u 1 k 0 0 H z O O P 1 H P F T h r u 1 k 0 0 H z Output 1 Low Pass Filter Output 1 High Pass Filter Low Pass Filter The low pass...

Page 35: ...r u 1 k 4 6 H z O Phase Allows fine control in 5 steps of the signal s phase The effect of this control is summed with that of the Output Polarity function 0 180 In this way it s possible to adjust th...

Page 36: ...and enable this unit to be used extremely effectively and flexibly O u t p u t E Q Each equalizer has 5 pages one per filter indicating the name of the output it effects and the num ber of the filter...

Page 37: ...l of the signal in relation to the LIMITER threshold Output Pol Controls the outputs polarity Allows to invert the phase of the signal of individual outputs O u t p u t P o l Editing values are Normal...

Page 38: ...ffect Normally most suited to outputs dedicated to low frequencies O P 1 LI M I T E R F a s t O f f LIMITER ATTACK RELEASE FAST 1 ms 10 ms NORMAL 8 ms 80 ms SLOW 45 ms 450 ms Threshold Allow to set th...

Page 39: ...in utilities such as the MIDI setup or the protection against accidental or unauthorized changes menu UTILITY Midi Setup MIDI PrgCh In Ganging Input Ganging Output Ganging Delay Unit Units Lim Thresh...

Page 40: ...its characteristics the Ganging function affects the way in which the relative parameters audio are edited or represented As soon as Inputs and or Outputs are ganged the various menu pages only show t...

Page 41: ...DIAL changes the status of the old value So if the value which has to be allocated to the elements in Ganging is the same as the old value it s necessary to use the DIAL temporarily change the value e...

Page 42: ...ement units for Output Delay D e l a y Un i t I n m s O u t s D e l a y Un i t I n m O u t m m Lim Thresh Unit Allows to set the measurement units for the threshold of the Limiter EDIT menu Output Lim...

Page 43: ...M i s c S e t u p Output Meters Allows to decide whether to display the outputs signal before or after MUTE The options include PreMute PostMute the signal is always shown the signal is only shown if...

Page 44: ...ith 1 8 F steps T e m p e ra t u r e 2 0 C T e m p e ra t u r e 6 8 0 F N B the measurement units can be chosen between C degrees Centigrade and F degrees Fahrenheit by means of the Temperature Unit f...

Page 45: ...tions are blocked and access to the PRESET menu disabled L O C K T o t a l P a s s w o r d N I C K L O C K P a r t i a l P a s s w o r d N I C K Then use the t and u keys to access the area in which t...

Page 46: ...t yet been stored You can however switch the system on and off without any problems as the current settings are kept in the buffer memory Nevertheless if this is your work setup it s advisable to stor...

Page 47: ...In Allows to set the MIDI channel on which to receive Program Change commands sent by other units e g a computer or another DX 24 Settings can be Off ignores the Program Change commands received M I...

Page 48: ...nding number from its own memory In a MIDI chain of DX 24 units this means that all the units set to accept this command on the same MIDI Channel load the same number of Preset even if on the various...

Page 49: ...47 Configurations The following diagrams show the DX 24 s various system configurations as if to say the various input and output hardware combinations Configurations...

Page 50: ...48 Configurations...

Page 51: ...g diagrams show the schemes of the recommended cables and some connection examples referred to various system configurations A B Inputs BALANCED XLR M 1 4 Outputs BALANCED XLR F MIDI IN OUT THRU MIDI...

Page 52: ...50 Connections...

Page 53: ...51 Connections...

Page 54: ...52 Connections...

Page 55: ...53 Communications PC one or more DX 24 connection Connections...

Page 56: ...54 Communications two or more DX 24 short distance connection Connections...

Page 57: ...TM18 PR A1234 1 x TM18 3 MH 1 x TM18 3 L MONO PFC3 90W 8ohm PFC3 250W 8ohm PFC5 1500W 4ohm 13 TM18 FL A1234 1 x TM18 3 MH 1 x TM18 3 L MONO PFC3 90W 8ohm PFC3 250W 8ohm PFC5 1500W 4ohm 14 TM15 PR A13...

Page 58: ...582 ms inputs 189 ms outputs EQ filters Up to 30 maximum depending on the crossover slope EQ Type Peak 6dB Lo Shelf 12dB Lo Shelf 6dB Hi Shelf 12dB Lo Shelf Notch EQ Gain 15dB variable in 0 5dB steps...

Page 59: ...ventuali inesatezze Tutti i diritti sono riservati e in questo documento non pu essere copiato fotocopiato riprodotto per intero o in parte senza previo consenso scritto della GENERALMUSIC S p A GENER...

Page 60: ...Sales Division 47842 S Giovanni in Marignano RN Via delle Rose 12 tel 39 0541 959511 fax 39 0541 957404 Internet http www lemaudio com...