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Side Chain/EXT Key Inputs

Balanced Circuits

The electronically balanced Side Chain inputs are on stereo ¼ inch type A jack sockets, configured:

TIP = HOT, RING = COLD, SLEEVE = EARTH.

Inserting a mono jack plug will automatically unbalance the input.

The sockets are internally normalled so that signal continuity is maintained when there is no jack plug
inserted. If the unit is wired to a patchbay, then normalling must be carried out at the patchbay.

Transformer or electronically balanced connections have the benefit of Common Mode Rejection which
eliminates externally induced interference, such as mains hum etc. Balancing is especially useful when long
cable runs are used between pieces of equipment.

Transformer balanced circuits have the added advantage of being fully floating, with the earth (ground) or
screen being totally isolated from the signal. In installations where a difference in earth potential is likely to
occur, this isolation prevents earthing problems which can, in some cases, damage the equipment.

12

l

abc

In

Thru

Out

1/4” Stereo Jack

HOT

COLD

GND

Содержание DN500 Plus

Страница 1: ...knik Group Klark Teknik Building Walter Nash Road Kidderminster Worcestershire DY11 7HJ England Tel 44 1562 741515 Fax 44 1562 745371 Email sales ktgplc com Website www klarkteknik com OPERATORS MANUA...

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Страница 3: ...stoves or other apparatus that produceheat 9 Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two blades with one wider than the other A grounding type pl...

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Страница 5: ...k Teknik Group UK PLC Walter Nash Road Kidderminster Worcestershire DY11 7HJ England Tel 44 1562 741515 Fax 44 1562 745371 Company Registration No 2414018 abc abc SIGN A L P ROC ES S IN G BY D EFIN IT...

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Страница 7: ...Using the DN500 13 Compression Expansion and Limiting together 20 Application notes Technical Specification 25 Front panel controls 7 Rear panel controls 8 14 Setting the Controls 15 17 Setting the Co...

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Страница 9: ...ad should never be disconnected To prevent shock or fire hazard do not expose the unit to rain or moisture To avoid electrical shock do not removecovers Referservicingtoqualifiedpersonnelonly This pro...

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Страница 11: ...ty control inspection and every possible effort has been made to ensure that it left the factory in perfectcondition If however the unit shows any signs of damage please notify the transportation comp...

Страница 12: ...4 l abc...

Страница 13: ...he DN500 offers variable ratio expansion which can be used to increase subtly the dynamicrangeof asignal or toactasaconventionalnoisegate or offeranydegreeof expansioninbetween To control signal peaks...

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Страница 15: ...levels 4 sets the time taken for compression to commence after the threshold is exceeded from 0 05 milliseconds 50 microseconds to20 milliseconds 5 determines the time taken for the gain to return to...

Страница 16: ...esholdlevel adjustablefrom40 millisecondsto2seconds 13 Attack is a switched control offering either automatic signal monitored setting of Expander attacktimeorafixedvalueof2milliseconds 14 is the outp...

Страница 17: ...theunit Mains mains fuse Voltage selector switch Note Units for the Japanese market do not have an accessible mains voltage selector switch and are set for 100V operationonly 22 Signal is madeviaafema...

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Страница 19: ...e available and may be retrospectively fitted Please contact your Klark Teknik representative for more information The output circuitry is capable ofdrivinga600 ohmloadatalevelof 22dBu 2 1 3 1 2 3 2 1...

Страница 20: ...y Transformer or electronically balanced connections have the benefit of Common Mode Rejection which eliminates externally induced interference such as mains hum etc Balancing is especially useful whe...

Страница 21: ...Almost always it is necessary to compress the dynamic range of natural sounds to fit them into a window suitablebothfor theequipmentandfor comfortablelistening Although the dynamic range of the progr...

Страница 22: ...helevelofavocalmayvarywidely andappearliketheunprocessed signalinthediagram The unprocessed signal has a large dynamic range between the highest and lowest levels Applying compression reduces the high...

Страница 23: ...of 2 1 the effect is mild and suitable for the subtle compression of vocals or of a complete mix At 12 1 compression is becoming stronger and more noticeable Ratios between 3 1 and 15 1 are suitable...

Страница 24: ...release time will mean that the gain will stayatitsreducedlevel onlyrecoveringgradually The setting of the correct release time is a compromise If the release time is too short background noise can ca...

Страница 25: ...arder action of anoisegate The unprocessed signal has a fairly narrow dynamic range between the highest and lowest levels Expansion makesthelowerlevelslowerstill increasingthedynamicrange Used as an e...

Страница 26: ...gate The light bar graph indicatestheamountof gainreductiontakingplace sets the time the Expander takes to respond once the signal has passed below the threshold This can be done automatically the ci...

Страница 27: ...te control over peak levels is required a Peak Clipper may be switched in acting in effect as a compressor witharatioof infinity 1andaninstantaneousattacktime sets thelevelabovewhichlimiting or slippi...

Страница 28: ...ed also to clean up thesignal TheLimiter Clipperwillcontrolanyunwantedpeaks Theresultisthree stagedynamiccontrolover gainwiththreedifferentthresholdlevels In the mid range of levels the signal is unal...

Страница 29: ...signal chain its operation is unaffected by the use of any of the console controls except Input Gain An alternativeisconnectiontothegroup insertpointof theconsole This connection has two uses the inpu...

Страница 30: ...pander In normal use the amount of compression or expansion is related to the dynamics of the input signal The Side Chain allows the signal passing through the unit to be controlled by the dynamics of...

Страница 31: ...cond channel is equalised so that high frequencies in the sibilant range are boosted This channel is fed via an auxiliaryoutputtotheCompressor SideChaininput Now the Compressor will react whenever the...

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Страница 33: ...ut Noise 94dBu 20Hz 20kHz unweighted Threshold 30dB to 20dB Ratio 1 1 to 50 1 Knee 1dB hard to 40dB soft Envelope switchable auto attack and release controls disabled Attack 90 capture 0 05ms to 20ms...

Страница 34: ...ittable and has to be specified with order Security cover Transformer input output balancing Input transformer balancing is non retrofittable and has to be specified with order Parts Number Perspex se...

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