JL Audioメーカー505の使用説明書/サービス説明書
ページ先へ移動 of 17
Thank you for purchasing a JL Audio amplifier for your automotive sound system. Your amplifier has been designed and manufactured to exacting standards in or der to ensure years of musical enjoyment in your vehicle.
PLANNING Y OUR INST ALLA TION It is impor tant that you take the time to read this manual and that you plan out y our installation carefully . The following are some considerations that you m ust take into account when planning your installation.
12) Carefully review the amplifier’ s control settings to make sure that they are set according to the needs of the system. 13) Install power wire fuse (50A f or a single 500/5) and reconnect the negative batter y post ter minal. 14) T ur n on the source unit at a low level to double-check that the amplif ier is configured correctly .
any amplifier in the system be yond the maximum lev el established during the procedur e outlined in Appendix B (page 22). Doing so will result in audible distortion and possible speaker damage. Be aware that all three “Input Sens. ” adjustments will hav e to be made, regardless of how many input cab les are feeding the amplif ier .
Subwoofer Channel Filter: The 500/5's subwoofer channel f ilter (located in the “Subwoofer Channel Contr ol Section” employs an advanced state-variable, low-pass active filter . This feature is designed to attenuate frequencies abov e its filter frequency , so that the system's subwoofers do not reproduce any audible midrange content.
the “12dB” or “24dB” position. These features will not work with the “Sub LP Filter” switch in the “Off ” position. This is to prevent cascading the processing of multiple amplif ier s when configured in a master / slav e arr angement.
SER VICING Y OUR JL A UDIO AMPLIFIER If your amplif ier fails or malfunctions, please return it to your authorized JL Audio dealer so that it may be sent in to JL Audio for ser vice . There are no user ser viceable par ts or fuses inside the amplifier .
can be controlled with the source unit fader , without affecting the level of the subw oofer channel. See diagram B below . Note: This configuration can also be set up so that the subwoofer lev el tracks with the front channel level.
position. Depending on the crossover point and slope of the source unit/processor's filter , you may wish to engage the 500/5's sub low-pass filter to f ine-tune the sub-bass response.
L-R Ambience Control: This switch, located in the “ Rear Filter Section ” , should be set to the “ Off ” position when oper ating the amplifier in T ri-Amp Mode . JL AUDIO 500/5 19 Adjusts level of r ear (tweeter) channels. Select 12dB or 24dB/octave filter slope for rear channels (high-pass) Select high-pass filter freq.
JL AUDIO 500/5 21 CHAR T A-2 “ FIL TER FREQ/ ” SUBW OFER CH. FIL TER Detent Panel Actual Number Marking Fr eq. Full counter -clockwise: 42 01 . . . . . . . . . . . . . . . . . . . . . . .42 02 . . . . . . . . . . . . . . . . . . . . . . . .42 03 .
7) Connect the AC v oltmeter to the “ Speaker Outputs ” or “ Subwoof er Output ” connector s of the channel set that you are adjusting. For the stereo channels, it is only necessar y to measure one channel. If bridged, make sure you test the voltage at the correct connector s (L+ and R–).
JL AUDIO 500/5 25 4) If you w ould like to r un a third amplifier in “Slav e” configuration, select the “ Full-Range ” position on the “ Output Mode ” switch of the fir st “Slav e” amp. Then, connect an RC A cable from the first “Slav e” amplifier’ s preamp outputs to the second “Slave” amplifier .
JL AUDIO 500/5 27 “ MY AMPLIFIER TURNS ON, BUT THERE IS NO OUTPUT ” Check the input signal using an A C voltmeter to measure the voltage from the source unit while an appropriate test tone is play ed through the source unit (disconnect the RC A cables from the amplif ier prior to this test).
JL AUDIO 500/5 29 APPENDIX E: 500/5 Specifications GENERAL SPECIFICA TIONS: Recommended Fuse V alue: 50A Recommended Fuse T ype: A GU or MaxiFuse™ INPUT SECTIONS: No.
JL AUDIO 500/5 31 Rear Filter Sectio Freq. Range x1/x10 Filter Freq. (Hz) High-Pass Off/12dB/ Subwoofer Output (250Wx1) Subwoofer Channel Control Section Input Sens. Input V oltage Low/High Independent Sub Input Sub LP Filter Off/12dB/24dB Filter Freq.
LIMITED W ARRANTY - AMPLIFIERS (USA) JL AUDIO warr ants this product to be free of defects in materials and wor kmanship for a period of ninety (90) days from the original date of purchase .
デバイスJL Audio 505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:
JL Audio 505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JL Audio 505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。JL Audio 505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。JL Audio 505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。
JL Audio 505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JL Audio 505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、JL Audio 505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JL Audio 505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。