Nilfisk-ALTOメーカーSTEREO TUBE PREAMPの使用説明書/サービス説明書
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MICtube STEREO TUBE PREAMP User's Manual www .altoproaudio.com V ersion 2.3 September 2005 English.
1 SAFETY RELA TED SYMBOLS CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN This symbol, wherever used, alerts you to the presence of un-insulated and dangerous voltages within the product enclosure. These are voltages that may be sufficient to constitute the risk of electric shock or death.
2 Do not install this product near any direct heat source. Do not block areas of ventilation. Failure to do so could result in fire. Keep product away from naked flames. IMPORT ANT SAFETY INSTRUCTIONS Read these instructions Follow all instructions Keep these instructions.
Preface 3 Dear Customer , . Thank you very much. L TO AUDIO TEAM Thanks for choosing L TO Stereo T ube Preamplifier and thanks for choosing one of the results of L TO AUDIO TEAM job and researches. For our L TO AUDIO TEAM, music and sound are more than a job.
4 T ABLE OF CONTENT 1. INTRODUCTION ............................................................................................5 2. FEA TURE LIST ..............................................................................................5 3. CONTROL ELEMENTS .
1. INTRODUCTION 5 Half rack space Robust and Compact design Dual Servo Microphone Preamplifier 20dB pad +48V phantom power Phase Reverse 8-Digit Output Level meter 12AX7W A Low Noise Tubes Output sect.
6 a. Guidepost of the front panel (1) Power LED (2) CHANNEL 1 Output Level Display LED (3) CHANNEL 2 Output Level Display LED (4) Phantom Power Switch (5)(6) Phase Reverse Switch (7)(8) 20dB P AD (9)(10) Combination Microphone (XLR) and Instrument (1/4 inch) input (1 1)(13) Input Gain Control (0 to 30 dB) (12)(14) Drive Control (0 to 40 dB) b.
3.2 The Rear Panel 7 - Drive (12 for CHANNEL 1 and 14for CHANNEL 2): a. Power Supply Connection Please use the 18V AC AC/AC Adaptor provided by L TO to connect your MICtube. Detail your can follow the illustration. 18V AC b. Analogue Inputs / Outputs The Output XLR Connector is servo balanced and operates at +4dBu.
4. INST ALLA TION & CONNECTION: 4.1 Mains Connection - Please ensure that the L TO MICtube Stereo Microphone Preamplifier is connected to the correct supply voltage before operating this unit. - Only use the 18V AC AC/AC Adaptor provided by L TO. 4.
9 4.3 Rack Mounting 5. APPLICA TIONS 5.1 The MICtube as icrophone reamplifier AM P Unbalanced Balanced Tip Ring Sleeve Tip Ring Sleeve Tip Sleeve Tip Sleeve Tip Sleeve Cent e r Cent e r Centre Screen .
10 5.2 The MICtube as Direct-Injection ox (DI Box) AB When audio signals produced by instruments such as guitars, keyboards, etc. are transported over long unbalanced lines, the transmission quality may be affected by Hum or other interference signals included in the cable.
11 1 2 3 4 A B C D 4 3 2 1 D C B A 1 2 3 4 5 6 X1 X2 X3 2 1 3 4 2 1 3 22 11 33 B Block Diagram U1(INA163) TUBE-12AX7 2 1 3 2 3 22 33 2 1 3 1 2 3 4 5 6 X1 X2 X3 POWER SUPPL Y AC18V +12VDC +15VDC -15VDC.
12 6.2 Specifications XLR Impedance 1/4" High Z Connectors Phase Reverse 20dB Pad +48V Phantom Power XLR Balanced 1/4" Unbalanced T ube Drive Gain Power Supply Rejection Amplifier T ype THD .
13 7. W ARRANTY 1. W ARRANTY REGISTRA TION CARD T o obtain Warranty Service, the buyer should first fill out and return the enclosed W arranty Registration Card within 10 days of the Purchase Date.
14 3.5 In no event shall be liable for any incidental or consequential damages. Some LT O states do not allow the exclusion or limitation of incidental or consequential damages, so the above exclusion or limitation may not apply to you.
NF00870-2.3 No. 1, Lane 17, Sec. 2, Han Shi West Road, T aichung 40151 T aiwan http://www .altoproaudio.com T el: 886-4-22313737 email: alto@altoproaudio.com Fax: 886-4-22346757 c All rights reserved to AL TO. All features and content might be changed without prior notice.
デバイスNilfisk-ALTO STEREO TUBE PREAMP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：
Nilfisk-ALTO STEREO TUBE PREAMP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Nilfisk-ALTO STEREO TUBE PREAMP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。Nilfisk-ALTO STEREO TUBE PREAMP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。Nilfisk-ALTO STEREO TUBE PREAMP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。
Nilfisk-ALTO STEREO TUBE PREAMP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Nilfisk-ALTO STEREO TUBE PREAMP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、Nilfisk-ALTO STEREO TUBE PREAMP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Nilfisk-ALTO STEREO TUBE PREAMP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。
