Directed Audioメーカー250/4の使用説明書/サービス説明書
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models 200/2 300/2 250/4.
2 © 2003 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 © 2003 Directed Electronics, Inc Directed Electronics, Inc. promises to the original purchaser , to replace this product should it prove to be defective in workm.
4 © 2003 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 © 2003 Directed Electronics, Inc INST ALLA TION GUIDELINES 1. Please read this owner’ s manual carefully before installing this ampli- fier . 2. Disconnect the batter y ground terminal prior to making any elec- trical connections.
6 © 2003 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 © 2003 Directed Electronics, Inc 1. H H i i g g h h L L e e v v e e l l I I n n p p u u t t C C o o n n n n e e c c t t o o r r - Accepts 1v to 10v input from the headunit’ s speaker output. 2. R R C C A A O O u u t t p p u u t t J J a a c c k k s s - - These pass through RCA jacks can be used to send the input signal to a second amplifier .
1. S S p p e e a a k k e e r r O O u u t t T T e e r r m m i i n n a a l l s s - Connect the speakers to these terminals. (Refer to the Speaker Connection section of this guide.) 2. 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 .
9 © 2003 Directed Electronics, Inc REM GND BAT T 20A FUSE SPEAKER OUTPUT LR BRIDGED FIGURE 2—AMPLIFIER CONNECTIONS 200/2 300/2 REAR 1 2 4 3 5 REM GND BAT T 25A FUSE LR BRIDGED SPEAKER OUTPUT FRONT .
10 © 2003 Directed Electronics, Inc SPEAKER WIRING DIAGRAMS 200/2 300/2 Stereo operation (top view) Mono operation (top view) Simultaneous stereo/mono operation (top view).
11 © 2003 Directed Electronics, Inc SPEAKER WIRING DIAGRAMS 250/4 Simultaneous stereo/mono operation (top view) 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 .
12 © 2003 Directed Electronics, Inc CROSSOVER SETTINGS AND GAIN ADJUSTMENT Y our Directed Audio power amplifier needs to be adjusted carefully to achieve maximum performance.
13 © 2003 Directed Electronics, Inc SPECIFICA TIONS Directed model 200/2 300/2 250/4 RMS continuous power per channel , both chan- nels driven into 4 ohms from 20 to 20,000 Hz, with less than 0.08% T otal Harmonic Distor tion @ 14.4 VDC RMS continuous power per channel , both chan- nels driven into 2 ohms from 20 to 20,000 Hz, with less than 0.
16 © 2003 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 available.
デバイスDirected Audio 250/4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 250/4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 250/4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 250/4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 250/4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 250/4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 250/4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 250/4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 250/4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。