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XTA DP224, Руководство оператора

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DP224/6 

Operators 

Manual       Page 

19 

Audio 

Function 

Screens        

 
Gain Screen 

 
 

To adjust the gain: 

 
 

 
 
 

 
 

 

Use the ‘GAIN’

 

control. 

 
Each input and output has an individual gain screen. The inputs have a range of +6dB 
to  –40dB, adjustable in 0

.

1dB steps and the outputs have a range of +15dB to –

40dB, again

 

adjustable in 0

.

1dB steps. 

 

 

For further details on this topic, see the section entitled  
“Operating Level” on page 39. 

Содержание DP224

Страница 1: ......

Страница 2: ...output gain and limiter settings Also used for design of new crossovers Security Sub menu Used for locking various features of the units using a four digit code System Sub menu Used to view the units...

Страница 3: ...tion 10 Rear Panel Connections 11 Operating the DP226 12 Note about operation with WindowsTM software 12 Preliminary Set up 12 DP226 Configurations 13 Introduction 13 2 x 2 way with Mono Sum 13 2 x 3...

Страница 4: ...9 Xover Only 29 Xover Trim 29 Xover Trim Mute 29 Changes Only 29 Changes View 29 Changes Mutes 29 EVERYTHING 29 Entering the Password to Complete the Locking Operation 30 System Sub Menu 31 System Sta...

Страница 5: ...opes 40 Time Alignment 40 Output Limiters 41 Setting Accurate Limiter Thresholds 42 Specifications 44 Warranty 45 Options and Accessories 45 Appendices 46 Appendix 1 Limiter threshold in dB to Vrms lo...

Страница 6: ...DE CHOC ELECTRIQUE NE PAS ENLEVER NE PAS EXPOSER A LA PLUIE NI A L HUMITE It should not be necessary to remove any protective earth or signal cable shield connections Do not defeat the purpose of the...

Страница 7: ...engineered for cutting edge performance and world class reliability If you would like further information about this or any other XTA product please contact us We look forward to hearing from you in t...

Страница 8: ...multiple controls to provide an easy to use interface Alternatively it may be controlled externally by XTA s proprietary WindowsTM software along with existing and future Audiocore products Features S...

Страница 9: ...r each output with an exceptionally fine minimum increment of 2 6 S Three velocity sensitive encoders provide a familiar and intuitive control format with all filter information displayed simultaneous...

Страница 10: ...Encoders three velocity sensitive controls allow the relative parameter displayed on the LCD screen to be adjusted PC Card PCMCIA card slot allows back up of input memory sets unit cloning data and fa...

Страница 11: ...tor for connection to a PC Data is converted to RS485 standard and relayed to slave units via the RS485 sockets Midi IN 5 pin DIN socket See page 33 for more information RS485 In Out XLR sockets Used...

Страница 12: ...or NEXT key to select the desired configuration and follow the set up wizard to finalise your design Note that when in a menu ENTER is always used to confirm selections The current selection is marke...

Страница 13: ...for stereo systems 2 x 2 way with Mono Sum This format feeds input A to outputs 1 and 2 designated low and high respectively Input B feeds outputs 3 and 4 low and high respectively Outputs 5 and 6 are...

Страница 14: ...nd high respectively Note that this configuration as with the 2 x 2 way can have the outputs ganged for stereo operation This gangs outputs 1 4 2 5 and 3 6 so that they track identically It can be sel...

Страница 15: ...xiliaries with their source being either input B or the sum or inputs A and B The choice of pre or post input EQ for the sum signal is only offered if outputs 5 and or 6 are chosen to feed form the su...

Страница 16: ...as an auxiliary with the source being either input B or the sum or inputs A and B The choice of pre or post input EQ for the sum signal is only offered if output 6 is chosen to feed form the sum This...

Страница 17: ...ametric EQ If there does not appear to be any EQ on input B this will be why Note for DP224 Owners Having four outputs instead of six the DP224 does not support the same configurations as the DP226 Th...

Страница 18: ...Page 18 DP224 6 Operators Manual Screen Layouts Overview...

Страница 19: ...GAIN control Each input and output has an individual gain screen The inputs have a range of 6dB to 40dB adjustable in 0 1dB steps and the outputs have a range of 15dB to 40dB again adjustable in 0 1d...

Страница 20: ...the polarity Use the GAIN control to switch between and Each output has an independent polarity screen This gives the flexibility to reverse flip by 180 the phase of individual outputs Note When the...

Страница 21: ...g complete control over driver time alignment The combination of input base delay and output delay can be a maximum of 650mS So for example setting a base delay of 500mS on input A will only leave 150...

Страница 22: ...dent low pass filter Both filters have a range of selectable slopes which are Bessel 12dB 18dB and 24dB Butterworth 12dB 18dB and 24dB and Linkwitz Riley 24dB Highpass filters have a range of 10Hz thr...

Страница 23: ...um Q of 128 can be achieved and unlike analogue filters these tight Q filters are entirely stable The maximum notch depth is 30dB Parametric filters are carefully implemented using Double Precision pr...

Страница 24: ...and 32 times the attack time and thresholds range from 22dB to 10dB in 1dB steps If the automatic limiter time constant option is in use all limiter screens will say automatic and the time constants w...

Страница 25: ...inable levels DO NOT ENTER THIS MENU BEFORE HAVING THOROUGHLY UNDERSTOOD THE WAY THE LOCK OUT WORKS AS DESCRIBED ON PAGE 29 System Sub menu System Status displays unit specific info such as version an...

Страница 26: ...quence must be completed for a memory to store If after 15 seconds no store has been implemented the unit will return to the default mode When storing a memory the LCD shows the next available empty m...

Страница 27: ...Both GAIN LEDs will light when the inputs are accessed and the LCD will show A B All adjustments are now absolute and any adjusted parameters on both channels will become identical If it is necessary...

Страница 28: ...Source A A B Out 6 Source A A B Input A EQ 8 16 Band Input A EQ 8 16 Band Input A EQ 8 16 Band A B Pre Post In EQ Auto Limit TC Yes No Auto Limit TC Yes No Auto Limit TC Yes No Auto Limit TC Yes No Au...

Страница 29: ...The ability to operate mutes store or recall memories or even access the menus may also be locked Xover Only All input parameters are available but only the gain trim is available on the outputs effe...

Страница 30: ...ontrol to select a character and the BACK and NEXT keys to move to the next character Alternatively the GAIN keys can be used to enter a code by pressing any combination of the eight buttons Each GAIN...

Страница 31: ...ot affect any user memories stored in the unit Wake up Time Sets how the unit starts up with one of the following options 0 to 60 seconds Waits the specified time before unit wakes up Mute hold Turns...

Страница 32: ...ns Clip Hold Time If the unit has an excessive amount of equalisation anywhere in the signal path it is possible that the digital signal processors will run out of headroom and internal clipping may o...

Страница 33: ...Master Source RS485 RS232 or MIDI Select the Interface you wish to use If Master Source is RS485 or RS232 the following option will appear MIDI Relay No or Yes If you wish the unit to simultaneously a...

Страница 34: ...er unit Remote ID Num 1 32 Select the ID number this should correspond to the ID number for the relevant unit in the software Note that if the unit is set to operate as a slave as additional set of re...

Страница 35: ...igital signal AES EBU Connections The AES EBU digital signal is a stereo data stream and so only one input XLR and three output XLRs are used for the digital interface The connections are as follows I...

Страница 36: ...and cost This is where the general purpose interface option becomes useful It permits the recalling of memories input crossover or both from a remote location without the need for expensive interface...

Страница 37: ...am below shows this method of connection the required menu options are also given Note that the RS232 cable must be a 1 1 connection type NOT a null modem cable which has connections crossed internall...

Страница 38: ...a suitable RS485 port on your computer or a converter connected to the serial port in use This configuration is shown below along with the required menu options Midi Connection To use MIDI communicat...

Страница 39: ...r that option not a safe operating level Always ensure that this clipping point is no lower than that for the following equipment in the signal chain and allow extra margin if equalisation sections ar...

Страница 40: ...closest available frequency on the DP226 s display Filter Type High pass factors Low pass factors Bessel 12dB Oct 1 45 0 69 Butterworth 12dB Oct 1 31 0 76 Bessel 18dB Oct 1 37 0 73 Butterworth 18dB Oc...

Страница 41: ...all limiters using too fast an attack or release time will result in excessive low frequency distortion In the Design a Xover sub menu there is an option for automatic limiter time constants In this...

Страница 42: ...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 according to the frequency c...

Страница 43: ...Note the corresponding dB value Check the gain of your amplifier which needs to be in dB Subtract this gain figure from the dB value obtained from the table to find the required absolute setting for...

Страница 44: ...B steps High and Lowpass Filters Filters 1 of each per output Freq Range HPF 10Hz 16kHz 1 36 octave steps Freq Range LPF 35Hz 22kHz 1 36 octave steps Responses Bessel Butterworth 12 18 24dB Oct Linkwi...

Страница 45: ...accident or any use of this product that is not in accordance with the instructions provided by XTA are not covered by this warranty This warranty is exclusive and no other warranty is expressed or i...

Страница 46: ...dB Vrms dB Vrms 22 9 75 5 1 38 21 8 69 4 1 23 20 7 75 3 1 09 19 6 90 2 0 98 18 6 15 1 0 87 17 5 48 0 0 77 16 4 89 1 0 69 15 4 36 2 0 62 14 3 88 3 0 55 13 3 46 4 0 49 12 3 08 5 0 44 11 2 75 6 0 39 10...

Страница 47: ...Low Mid High Low Mid High 22 1Hz 120Hz 120Hz 1k82Hz 1k82Hz 22kHz 22 1Hz 120Hz 120Hz 1k82Hz 1k82Hz 22kHz 4 way 2 Low LoMid HiMid High Aux Aux 15Hz 149Hz 149Hz 1k31Hz 1k31Hz 8kHz 8kHz 22kHz 20 1Hz 22kHz...

Страница 48: ...Page 48 DP226 Operators Manual Appendix 3 Equalisation Curves Parametric Filter Gain Curves Parametric Filter Q Curves Parametric Filter High and Low Shelving Responses...

Страница 49: ...DP226 Operators Manual Page 49 Parametric Filter High Q Notch Filter Response High Pass Filter Response Curves Low Pass Filter Response Curves...

Страница 50: ...e section Typical Interface Setups on page 36 What kind of PCMCIA card do I need for use with the DP226 For all applications whether cloning units storing sets of input memories storing crossovers or...

Страница 51: ...it and keep it as a back up To copy this data to another unit make the clone Insert the card into the unit which will become the clone Press MENU and then using the BACK NEXT and ENTER keys select the...

Страница 52: ...the unit Please read the file on the disc for details Hardware Installation Ensure that the unit is switched off and that the power cord is removed from the mains supply Position the unit so that the...

Страница 53: ...y a rotary switch may be used for the Simple mode but this will mean that the seven memories will only be accessible in a linear fashion Individual switches allows Random Access of the memories in any...

Страница 54: ...8 2 9 10 11 12 13 14 4 Connection using crossover s own power supply Connect pin 5 to pin 9 Momentary Action Switch Mem 01 Momentary Action Switch Mem 07 15 way D type Connection using external batte...

Страница 55: ...ose from COMPLEX SIMPLE or OFF The use of the formats is explained in following sections COMPLEX allows recall of up to the first 31 memories SIMPLE allows the first 7 to be accessed Press ENTER when...

Страница 56: ...mode Use the lowest five pins for memories 01 to 05 in Simple mode The following table details how to recall memories in Complex mode A 1 below a pin number corresponds to a positive voltage at least...

Страница 57: ...luded on the GPI card An adapter is included in the GPI kit which plugs into the 15 pin connector and converts it to the original 9 pin which may be used in exactly the same way as before The menu opt...

Страница 58: ...DP226 Operators Manual Appendix 6 DP224 Crossover Configurations Single channel 2 way with 2 auxiliaries fed from either input B or the sum of A B 2 way crossover which may be configured to operate in...

Страница 59: ...DP226 Operators Manual Page 59 3 way crossover with one auxiliary which may be fed from input B or A B summed 4 way crossover...

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