AshlyメーカーDPX-100の使用説明書/サービス説明書
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DPX-100 Graphic Equalizer Compr essor/Limiter Operating Manual ASHL Y AUDIO INC. 847 Holt Road W ebster , NY 14580-9103 Phone: (585) 872-0010 T oll-Free: (800) 828-6308 Fax: (585) 872-0739 Internet: www .ashly .com HP F EQ 20H z Out In Out 10K Gai n dB ∞ +20 +15 +10 +6 +3 0 -3 -6 -10 -20 - .
2 Operating Manual - DPX-100 Gr aphic Equalizer - Compr essor/Limiter T able Of Contents 1 INTR ODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 UNP A CKING . . . . . . . . . . .
3 Operating Manual - DPX-100 Gr aphic Equalizer - Compr essor/Limiter 1. INTRODUCTION The Ashly DPX-100 combines a 15 band graphic equalizer and full function peak compressor/limiter in a single rack space product.
4 Operating Manual - DPX-100 Gr aphic Equalizer - Compr essor/Limiter 5. EQ CONTR OLS 5.1 EQ Boost/Cut The individual equaliza tion faders adjust the boost or cut at each f ilter frequency .
5 Operating Manual - DPX-100 Gr aphic Equalizer - Compr essor/Limiter 6. COMPRESSOR/LIMITER CONTROLS 6.1 GAIN The Gain control is used to adjust incoming sig- nal le vel to the VCA circuit. It is always acti ve, so switching out the limiter function has no effect on this contr ol.
6 Operating Manual - DPX-100 Gr aphic Equalizer - Compr essor/Limiter the double time constant, release from gain reduction af- ter a brief transient is alw a ys fast, with a slo wer release after a sustained o verdri ve. 6.6 OUTPUT LEVEL Output le vel control is provided to fully cut or restore up to 18 dB of system gain.
7 Operating Manual - DPX-100 Gr aphic Equalizer - Compr essor/Limiter 7.2 Inputs and Outputs The DPX-100 uses two dif ferent audio connec- tor types. 1/4" TRS (tip-ring-sleev e) phone jacks, and three pin XLR connectors will allow interfacing to most professional audio products.
8 Operating Manual - DPX-100 Gr aphic Equalizer - Compr essor/Limiter equalizer ef fectiv ely , you need to translate y our idea of the tone you want to pr oduce into a range of numerical frequencies.
9 Operating Manual - DPX-100 Gr aphic Equalizer - Compr essor/Limiter if this type of transient doesn’ t destroy a speak er outright, it may damage the speaker surround in such a way as to cause mechanical abrasion and futur e failure.
10 Operating Manual - DPX-100 Gr aphic Equalizer - Compr essor/Limiter e. Attack time to 5mS. f. Release time to 1 Sec. g. Limit switch IN 2. Using a 1/3 octave (31 band) or parametric equalizer , set the EQ controls to a flat setting, and if the equalizer has an o ve rall volume control, boost it by 10 to 15 dB.
11 Operating Manual - DPX-100 Gr aphic Equalizer - Compr essor/Limiter 9. DESIGN THEORY Graphic Equalizers: The Basics While most graphic equalizers look ver y muc h the same, there are se veral important differences in the circuitry used to implement v a rious designs.
12 Operating Manual - DPX-100 Gr aphic Equalizer - Compr essor/Limiter dynamic spectrum will be pushed to ward the “middle”. This is quite diff erent fr om simple limiting, where only loud peaks are subjected to gain reduction. Mor e than anything else, it is this double-ended effect which dis- tinguishes compression from limiting.
13 Operating Manual - DPX-100 Gr aphic Equalizer - Compr essor/Limiter signal before the gain control FET and then amplify it again. Of course this results in less than ideal noise per- formance and imposes a frustrating trade-off: less noise = more distortion.
14 Operating Manual - DPX-100 Gr aphic Equalizer - Compr essor/Limiter 10. BLOCK DIA GRAM 11. Equalizer T roubleshooting T ips No A udio Output Check A C po wer - is the pilot light on? Check in/out c.
15 Operating Manual - DPX-100 Gr aphic Equalizer - Compr essor/Limiter When Using Heavy Compr ession, Background Noise Is Noticeable During Quiet Sections Of The Pr ogram As defined in the section on compr ession, quiet program material is ef fectiv el y made louder while loud peaks are made quieter .
16 Operating Manual - DPX-100 Gr aphic Equalizer - Compr essor/Limiter 14. DIMENSIONS Dimens ional D rawing for DP X -100 0. 1 0 6. 0 0 17.00 1. 2 5 1.
17 Operating Manual - DPX-100 Gr aphic Equalizer - Compr essor/Limiter 15. SCHEMA TICS 123456 78 A B C D E 8 7 6 5 4 3 2 1 E D C B A B APPROVED: Dw g # Size Drawn B y Rev.
18 Operating Manual - DPX-100 Gr aphic Equalizer - Compr essor/Limiter 1 2 3 4 5 6 78 A B C D E 8 7 6 5 4 3 2 1 E D C B A B APPROVED: Dw g # Size Drawn B y Rev.
19 Operating Manual - DPX-100 Gr aphic Equalizer - Compr essor/Limiter 123456 78 A B C D E 8 7 6 5 4 3 2 1 E D C B A B APPROVED: Dw g # Size Drawn B y Rev.
Printed in USA 05/02 DPX100 -0 Oper ating Manual - DPX-100 Graphic Equalizer - Compr essor/Limiter ASHL Y AUDIO INC. 847 Holt Road W ebster , NY 14580-9103 Phone: (585) 872-0010 Fax: (585 872-0739 T oll Free (800) 828-6308 Internet: www .ashly .com 2002 by Ashly Audio Corporation.
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Ashly DPX-100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Ashly DPX-100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。Ashly DPX-100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。Ashly DPX-100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。
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ですが、ユーザガイドが果たす重要な役割の一つは、Ashly DPX-100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Ashly DPX-100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。