Klark TeknikメーカーDN500の使用説明書/サービス説明書
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Klark T eknik Group, Klark T eknik Building, W alter Nash Road, Kidderminster . W orcestershire. DY1 1 7HJ. England. T el:+44 1562 741515 Fax:+44 1562 745371 Email: sales@ktgplc.
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IMPOR T ANT SAFETY INSTRUCTIONS These symbols are internationally accepted symbols that warn of potential hazards with electrical products. The lightning flash with arrowhead symbol, within an equilat.
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DECLARA TION OF CONFORMITY We , of, Klark T eknik Building, W alter Nash Road, Kidderminster , W orcestershire, DY1 1 7HJ Declare that a sample of the following product:- to which this declaration refers, is in conformity with the following directives and/or standards:- Signed:.
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l abc Klark T eknik DN500 After you have unpacked 3 1 Introduction 5 Instrument Familiarisation Audio Connections 1 1 Using the DN500 13 Compression, Expansion and Limiting together 20 Application not.
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. 1 Thank you for selecting the Klark T eknik DN500 Plus dual compressor / limiter / expander . The unit continues the Klark T eknik tradition of providing superb audio performance, technical accuracy and rugged reliability . Do not install this unit in a location subjected to excessive heat, dust or mechanical vibration.
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3 l abc After Y ou Have Unpacked The Unit Save all the packing materials - they will prove valuable should it become necessary to transport or ship this product. Please inspect this unit carefully for any signs of damage incurred during transportation.
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5 l abc Intr oduction Compression, expansion, limiting and peak clipping are four of the most valuable techniques available to the sound engineer . Not only can they solve many problems that can arise in day to day work, creative possibilities exist in abundance.
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7 l abc Instrument Familiarisation: Fr ont Panel Controls The DN500 Plus Dual Compressor/Limiter/Expander consists of two identical channels, each with separate Compressor , Expander and Limiter sections. 1. determines the level above which gain reduction (compression) will take place, variable from +20dBu down to -30dBu.
l abc Expander Threshold Ratio 10. determines the level below which gain reduction will take place, variable from 20dBu down to -40dBu. Gain reduction BELOW a threshold level constitutes dynamic range EXP ANSION. The Gain Reduction light bar graph meter indicates in decibels by how much the signal is expanded at any instant.
l abc 9 19. is supplied via an IEC standard 3-pin connector . A compatible power cord is supplied with the unit. 20. The is located in a fuse holder fitted to the rear panel. Always replace with the correct type and rating as indicated on the unit. 21.
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l abc Audio Connections 11 Input Output The input circuit is a transformerless, electronically balanced design which achieves a symmetry of better than- 50dB from 20Hz to 10kHz. If transformer balancing of the input is required, this must be specified at the time of order .
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 = EAR TH. Inserting a mono jack plug will automatically unbalance the input.
13 l abc Using the DN500 The natural sounds of life have an extremely wide dynamic range, from the result of a falling leaf to the roar of a jet engine on take off.
14 l abc One of the principal uses of compression is the control of level in vocals. Many singers train for years to achieve the degree of breath control necessary for an even tone and expressive performance.
Hard Knee Soft Knee Increasing signal lev el Increasing signal level 1:1 1:1 10:1 10:1 l abc 15 Threshold Ratio Knee sets the level above which compression takes place. Signals below the threshold will remain unaltered. T urning the control clockwise lowers the threshold level and allows more of the signal to be compressed.
l abc 16 W ith a soft knee, signals which only just exceed the threshold level are compressed at a low ratio, the ratio increasing the higher the signal level.
l abc 17 Expansion may be used to increase the dynamic range of a signal : of a performance lacking life and vigour , or of a previously over compressed recording. Alternatively , expansion can be used to reduce noise, either subtly and undetectably , or with the harder action of a noise gate.
l abc 18 Threshold Ratio Attack Release Gain sets the level below which expansion takes place. Signals above the threshold will remain unaltered. T urning the control anticlockwise raises the threshold level and allows more of the signal to be expanded.
19 l abc Limiting The Limiter acts as a last check on signal level. If the level goes over the threshold, fast acting, high ratio compression is applied to bring it back within bounds.
20 l abc Compr ession, Expansion and Limiting The act of compressing a signal inevitably causes an increase in noise level. Compression reduces peak levels; gain make up restores the overall level, and in the process increases the level of any background noise that the signal contains.
21 l abc The Klark T eknik DN500 Plus Dual Compressor/Limiter/Expander is optimised for use at line level, therefore to process the signal from a microphone, the input to the DN500 Plus has to be taken from the console preferably from the channel insert point send.
22 l abc Applications: Side chain inputs Each channel of the DN500 Plus has two inputs, one for the Compressor and one for the Expander . In normal use, the amount of compression or expansion is related to the dynamics of the input signal.
l abc 23 Applications: De-essing De-essing is an important compression technique using the Side Chain. Many singers have high level sibilants 'sss' sounds which detract from their performance. Equalising the signal will reduce the sibilants, but also make the overall vocal sound dull.
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Audio Inputs T wo Side Chain Inputs T wo Compressor + T wo Expander Audio Outputs T wo Performance Compressor Expander Limiter/Clipper Power Requirements T ermination T ype Electronically Balanced Imp.
26 l abc Dimensions W eight Options W idth 482mm (19 inch) Depth 292mm (11 ½ inch) Height 44.5mm (1 ¾ inch) Nett 4 kg Shipping 6kg Security Cover T ransformer Input / Output balancing* * Input transformer balancing is non-retrofittable and has to be specified with order .
デバイスKlark Teknik DN500の購入後に（又は購入する前であっても）重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります：
Klark Teknik DN500をまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはKlark Teknik DN500の技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。Klark Teknik DN500の取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。Klark Teknik DN500で得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
Klark Teknik DN500を既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はKlark Teknik DN500の不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、Klark Teknik DN500に関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちKlark Teknik DN500デバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。
