Directed AudioメーカーA502の使用説明書/サービス説明書
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models A502 A404 OWNER’S MANUAL.
2 2 © 2004 Directed Electronics, Inc T ABLE OF CONTENTS CONGRA TULA TIONS Congratulations for choosing a Directed Audio power amplifier from Directed Electronics, the industry leader in high quality automotive security and audio equipment since 1990.
LIMITED TWO-YEAR CONSUMER W ARRANTY 3 3 © 2004 Directed Electronics, Inc Directed Electronics, Inc. promises to the original purchaser , to replace this product should it prove to be defective in wor.
4 4 © 2004 Directed Electronics, Inc High-powered car audio systems may produce sound pressure levels that exceed the threshold at which hearing loss may result. They may also impair a driver’ s ability to hear traffic sounds or emergency vehi- cles.
5 5 © 2004 Directed Electronics, Inc INST ALLA TION GUIDELINES 1. Please read this owner’ s manual carefully before installing this ampli- fier . 2.
6 6 © 2004 Directed Electronics, Inc speaker load, the more heat is generated. For low impedance speaker applications or restricted ventilation installations, an external cooling fan may be advisable.
7 7 © 2004 Directed Electronics, Inc 1. R R C C A A I I n n p p u u t t J J a a c c k k s s - - Accepts line level outputs from head units or signal processors at voltages between 150mV and 7.
1. P P o o w w e e r r F F u u s s e e - - This fuse protects the amplifier against internal electrical damage and is meant to protect the amplifier only . All other power connections should be fused at the source. The A502 uses 1-30A fuse, and the A404 uses 1-30A fuse.
9 9 1 2 3 4 5 FIGURE 3—AMPLIFIER CONNECTIONS A502 REAR © 2004 Directed Electronics, Inc 1 2 3 4 5 FIGURE 4—AMPLIFIER CONNECTIONS A404 REAR wire. DO NOT connect this terminal directly to the vehicle battery ground terminal or any other factory ground points.
1 1 0 0 © 2004 Directed Electronics, Inc SPEAKER WIRING DIAGRAMS A502 L CH R CH B R I D G E D L CH R CH INDUCTOR CAP CAP SUB Stereo operation (top view) Mono operation (top view) Simultaneous stereo/.
1 1 1 1 © 2004 Directed Electronics, Inc SPEAKER WIRING DIAGRAMS A404 N N O O T T E E : : For bridged two channel operation as shown in this diagram, connect right channel RCA cables to the front inputs of the amplifier , and left channel RCA cables to the rear inputs of the amplifier .
1 1 2 2 © 2004 Directed Electronics, Inc Simultaneous Stereo (top view) B R I D G E D L CH R CH INDUCTOR CAP CAP SUB B R I D G E D L CH R CH INDUCTOR CAP CAP SUB REAR FRONT Stereo Operation - 4 Chann.
1 1 3 3 © 2004 Directed Electronics, Inc B R I D G E D L CH R CH B R I D G E D L CH R CH SUB REAR (LEFT ) REAR (RIGHT ) 2 Channel Stereo with Mono Sub (top view).
1 1 4 4 © 2004 Directed Electronics, Inc CROSSOVER SETTINGS AND GAIN ADJUSTMENT Y our Directed Audio power amplifier needs to be adjusted carefully to achieve maximum performance.
1 1 5 5 © 2004 Directed Electronics, Inc LED TUBE INST ALLA TION (OPTIONAL) This Directed Audio amplifier has been designed with a custom heat sink that can accommodate two (optional—not supplied) V ARAD LED tubes. 1. Before installing the LED tubes, remove and discard the mounting feet from the V ARAD LED tubes.
1 1 6 6 © 2004 Directed Electronics, Inc CEA SPECIFICA TIONS A A 5 5 0 0 2 2 Power Output: 90 Watts RMS x 2 at 4 ohms and < 1% THD+N Signal to Noise Ratio: -70 dBA (reference 1 Watt into 4 ohms) A.
1 1 7 7 © 2004 Directed Electronics, Inc SPECIFICA TIONS A A 5 5 0 0 2 2 A A 4 4 0 0 4 4 RMS continuous Power 4 Ohm 1 75W x 2 35W x 4 RMS continuous Power 2 Ohm 2 125W x 2 50W x 4 RMS continuous Powe.
2 2 0 0 © 2004 Directed Electronics, Inc The company behind this system is Directed Electronics, Inc. Since its inception, Directed has had one purpose, to provide customers with the finest vehicle security , car stereo products, rear seat entertainment, and accessories avail- able.
デバイスDirected Audio A502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:
Directed Audio A502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Directed Audio A502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。Directed Audio A502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。Directed Audio A502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。
Directed Audio A502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Directed Audio A502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、Directed Audio A502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Directed Audio A502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。