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KV2 Audio VHD Series, User Manual

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KV2 Audio VHD Series User Manual Download Page 9

8

SDD3  ·  U

sing the S

yst

em

SDD3 · Using the System

Delay for additional PA / fill-in delay, with mono cardioid subwoofers in center

The main PA works directly, without delay. The left and right channel of the secondary, or side-fill PA works through the full 
range channels of the SDD3, (channel A and B) for proper time alingment with the main PA. Subwoofers are in the center  
and work in mono, cardioid mode.
When using this system, it is possible to move in time (change the distance) of sidefills and the mono subwoofers in cardioid 
mode compared to the main PA.

Summary of Contents for VHD Series

Page 1: ...ntly develop technologies that eliminate distortion and loss of information providing a true dynamic representation of the source Our aim is to create audio products that absorb you place you within the performance and deliver a listening experience beyond expectations Super Digital Delay Line ...

Page 2: ...ing walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the SDD3 The AC mains plug or appliance coupler shall remain readily accessible for operation 12 Only use accessories specified by KV2 Audio 13 The unit is intended for use in a 19 rack Follow the mounting instructions 14 Unplug SDD3 during lightning storms or when unused for long periods of t...

Page 3: ...er requirements 4 Voltage requirements 4 Connector wiring 4 Features 5 Front Panel 5 6 Rear Panel 7 Using the System 8 9 Setup 10 Digital part description 10 Menu 11 Subwoofer mode 12 Memory 13 Lock 14 Display 15 Block Diagram 16 Dimensions 17 Input Cables and Output Cables 18 Specifications 19 Warranty Service 20 Contents ...

Page 4: ...vel can be set in the range from 10 to 10dB The subwoofer channel is dedicated for delaying subwoofers with a bandwidth of 0 to 120Hz and maximum delay time of 10ms approx 3 43m 11 25ft The subwoofer channel has two independent outputs which can be linked together for easy cardioid setup The subwoofer channel is designed like a digitally controlled analog unit The output level can be set in the ra...

Page 5: ...e at 50 or 60Hz If the ANY LED does not illuminate or the system does not respond to audio input remove AC power immediately Verify that the voltage is within the proper range If the problem persists please contact KV2 Audio or an authorized service center Connector wiring XLR Balanced Input and Output connectors If it is necessary to convert balanced output to unbalanced it is impossible to short...

Page 6: ...evel but never reaches clip level High Pass Filter The full range channels A and B are equipped with a tunable high pass filter filter from 0 to 160Hz It has a slope of 12dB octave and it is used for easy and optimal setup for side fills or to protect your subwoofer system from the frequencies that cannot reproduce efficiently and may cause damage Output level The output level can be set in range ...

Page 7: ... is indicated by green LED indicators When you are inside the menu this button serves as a skip to the next menu item Rotation encoder with Enter pustbutton The encoder serves as the main way for increasing clockwise or decreasing counterclockwise values and menu positions The encoder also serves as the ENTER button alloving the operator to enter leave the submenu in the main menu When the DELAY m...

Page 8: ...x allowed output frequency is 120Hz When using the subwoofer channel in normal mode SUB1 and SUB2 delay outputs are separated When using the subwoofer channel in cardioid mode output SUB1 FRONT serves as the front subwoofer output and SUB2 REAR serves as the rear cardioid subwoofer output In cardioid mode the delay setup is linked together for determined and easy cardioid setup For more informatio...

Page 9: ...t and right channel of the secondary or side fill PA works through the full range channels of the SDD3 channel A and B for proper time alingment with the main PA Subwoofers are in the center and work in mono cardioid mode When using this system it is possible to move in time change the distance of sidefills and the mono subwoofers in cardioid mode compared to the main PA ...

Page 10: ...he main PA works through SDD3 channel A to delay the PA for optimal time alingment with the stage position The secondary or side fill PA works through the full range channel B of SDD3 for proper time alingment with the main PA Subwoofers work in stereo cardioid or normal mode When using this system it is possible to move separately in time change distance of the main PA sidefills and subwoofers co...

Page 11: ...el Level meters are equipped with peak memory and 2 seconds auto reset Delay Delay can be set for each channel individually delays can be set in time or distance Required delay is set by changing numbers on math point position Delay numbers are changed by rotating the rotary encoder Math position is changed by pushing the rotary encoder ENTER Delay changes are reflected in real time The current se...

Page 12: ... channel A Subwoofer mode Cardioid setup Bass is usually omnidirectional but by using a cardioid bass array you can reduce bass feedback on stage and also minimise noise pollution from events When using cardioid mode the front subwoofer is 1 4 wavelength of the tuned cardioid frequency in front of the rear subwoofer The front subwoofer is fed with a 1 4 wavelength delay compared to the rear sub Th...

Page 13: ...s are linked together with λ 4 distance between front and rear subwoofer outputs In cardioid mode the selected cardioid tuned frequency can be operated in range from 40Hz to 120Hz with 10Hz steps The subwoofer pair s polar characteristics are cardioid on this frequency whilst uder and above this frequency the polar characteristics of the subwoofer pair are omnidirectional with increasing differenc...

Page 14: ... between A Z a z spacebar 1 9 using CHAN NEXT button To jump to the next letter position press ENTER To exit renaming press FUNC EXIT button When new memory is created the actual setup is automatically saved Save to memory All delays units delay mode and cardioid setup are saved into the memory To save to memory select the memory position to save in and select save from the memory function list pr...

Page 15: ... letters Lock now When the password is set the SDD3 can be locked automatically using Autolock function or manually using Lock now function Autolock Automatic lock function can be selected between 1min 10mins 1hour or can be switched off After this time when the SDD3 parameters are not being changed the SDD3 unit is automatically locked Unlock When locked the MENU is replaced with unlock screen To...

Page 16: ...3 calculates delay distances using the speed of sound Speed of sound varies with temperature The SDD3 allows the user to set the ambient temperature to calculate accurate delay settings Ambient The ambient temperature can be set in the range from 20 C to 40 C with 5 C steps When the SDD3 units are set to imperial the temperature is displayed in F When the SDD3 unit is switched to distance mode and...

Page 17: ...SDD3 Block Diagram Block Diagram 16 SDD3 Block Diagram ...

Page 18: ...SDD3 Dimensions 17 SDD3 Dimensions Dimensions ...

Page 19: ... Cold Sleeve Pin 1 Shield Jack output unbalanced XLR input Tip Pin 2 Signal Sleeve Pin 3 Shield Sleeve Pin 1 Shield XLR output XLR input Pin 2 Pin 2 Hot Pin 3 Pin 3 Cold Pin 1 Pin 1 Shield XLR output Jack input balanced Pin 2 Tip Hot Pin 3 Ring Cold Pin 1 Sleeve Shield XLR output Jack input unbalanced Pin 2 Tip Signal Pin 3 No Connection Pin 1 Sleeve Shield XLR Plugs seen from solder side SDD3 Inp...

Page 20: ...l Output Channels 2 Full range 2 Subwoofer Output Impedance 50Ω Through Signal Output XLR Delay Signal Output XLR Features Level Control 10 10dB Subwoofer Level Control 10 10dB System setup Normal Cardioid mode Delay Range 0 012ms to 393 216ms step 0 003ms Full Range Mode 2 channels Phase 0 180 High Pass Filter OFF to 260Hz Indicators OLED Display Memory 30 Power Requirements Power Connector IEC 3...

Page 21: ...ed to an authorized distributor service centre or shipped directly to our factory Because of the complexity of the design and the risk of electrical shock all repairs must be attempted only by qualified technical personnel If the unit needs to be shipped back to the factory it must be sent in its original carton If improperly packed the unit may be damaged To obtain service contact your nearest KV...

Page 22: ...KV2 Audio International Nádražní 936 399 01 Milevsko Czech Republic Tel 420 383 809 320 Email info kv2audio com www kv2audio com KVV120093 00 02 0 The Future of Sound Made Perfectly Clear ...

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