Mesa/BoogieメーカーBig Block 750の使用説明書/サービス説明書
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OO GI E B M ESA Owner's Manual.
G r eetings from the H ome of T one Congratulations on y our choice of the Big Block 750 as your B ass amplifier and welcome to the MESA/Boogie family! As a discriminating player you probably kno w that you have pur chased the most comprehensive instrument for amplifying Bass that is available.
PRECAUTIONS & W ARNINGS Your MESA/Boogie Amplifier is a professional instrument. Please treat it with respect and operate it properly. USE COMMON SENSE AND ALWAYS OBSERVE THESE PRECAUTIONS: YOUR AMPLIFIER IS LOUD! EXPOSURE TO HIGH SOUND VOLUMES MAY CAUSE PERMANENT HEARING DAMAGE ! No user serviceable parts inside.
FRONT P ANEL: REAR P ANEL: Precautions 0 Overview 1/2 INSTRUMENT INPUT 3 TUNER 3 CONTROLS: OVERDRIVE 3/4 GAIN 4 BASS 4/5 P ASSIVE MID 5 ACTIVE MID 5 FREQUENCY 6 TREBLE 6 MASTER 6 O.
Congratulations on your choice of the M-PULSE BIG BL OCK 750 as your amplifier and welcome to the MESA/Boogie Family! First we would like to thank you for choosing us as your amplifier company . This is something we never take for granted and you will come to find that we are here to help you sound your best should you ever need help.
P AGE 2 Overview: (Continued) Looking at the Front Panel, it is apparent how logically the controls are laid out before you, creating a simple and intuitive platform for expression. However , don’t let this simplicity deceive you as to the incredible shaping power of this preamp.
P AGE 3 FRONT PANEL CONTROLS: INPUT: This jack is the instrument INPUT which feeds the first tube in the all-tube preamp of the BIG BL OCK . It is set up with enough headroom to handle both passive and active style instruments.
FRONT PANEL CONTROLS: (Continued) OVERDRIVE: ( Continued) Note that the GAIN control is still active when the OVERDRIVE is switched into the signal path. The GAIN control is wired in series with the OVERDRIVE and therefore, it can be used to further fine-tune the amount of overdrive present in the mix.
FRONT PANEL CONTROLS: (Continued) BASS: (Continued) This type of broad band, active rotary control makes it possible to achieve bass characteristics far beyond that of a conventional passive type control. It can increase the low end to an almost absurd level and with a flick of the wrist, dip it to near transitor radio skinniness.
FRONT PANEL CONTROLS: (Continued) FREQUENCY: This control determines the frequency range that the ACTIVE MID control will cut or boost. As mentioned earlier , it covers a broad range that sweeps from the low midrange region to the lower treble frequencies.
FRONT PANEL CONTROLS: (Continued) O.D. MASTER: This control, like the OVERDRIVE, is designed to help you think outside the box. It provides an independent volume control for the OVERDIVE mode, allowing you to preset the level of the overdriven sound and footswitch to it for specific parts.
REAR PANEL CONTROLS: FUSE: This is the A.C. Mains Fuse for the BIG BL OCK 750. REPLACE ONL Y WITH A SLO-BLO TYPE FUSE OF THE PROPER RA TING. THIS IS EXTREMEL Y IMPORT ANT , AS THE BIG BL OCK 750 DRA WS A SUBST ANTIAL AMOUNT OF CUR- RENT A T HIGH OUTPUT LEVEL SETTINGS.
REAR PANEL CONTROLS: (Continued) GROUND LIFT / POST & PRE / DIRECT OUT: (Continued) PRE gives you just the sound of your instrument and no BIG BL OCK 750 enhancement so that an engineer can create their own sound with your unprocessed signal at the console.
P AGE 10 REAR PANEL CONTROLS: (Continued) TUNER: This Rear Panel auxiliary TUNER output is wired in parallel with the Front Panel TUNER output. This provides for Rear Panel interfacing of rack mount tuners, where it is preferable to have all wiring stay in the rear of a rack system.
P AGE 1 1 AC OFF S I M U L S T A T E B A S S A M P L I F I E R TM P ASSIVE-MID ACTIVE-MID FREQUENCY INPUT TUNER MUTE E N G I N E E R I N G OVERDRIVE GAIN BASS TREBLE MASTER O.
P AGE 12 AC OFF S I M U L S T A T E B A S S A M P L I F I E R TM P ASSIVE-MID ACTIVE-MID FREQUENCY INPUT TUNER MUTE E N G I N E E R I N G OVERDRIVE GAIN BASS TREBLE MASTER O.
DIAGNOSING PREAMP TUBE PROBLEMS: At some point it is quite possible that you will experience some kind of minor pre-amp tube noise. Rest assured - this is no cause for alarm and you can take care of the problem yourself in a matter of minutes by simply swapping tubes.
P AGE 14 FRONT VIEW: Big Block 750 ALL FRONT PANEL KNOBS SAME part # REAR VIEW: Big Block 750 JACK pt# JACK pt# JACK pt# POT pt# POT pt# POT pt# POT pt# POT pt# LENSpt# AC OFF S I M U L S T A T E B A S S A M P L I F I E R TM P ASSIVE-MID ACTIVE-MID FREQUENCY INPUT TUNER MUTE E N G I N E E R I N G OVERDRIVE GAIN BASS TREBLE MASTER O.
The Spirit of Art in Technology OO GI E B M ESA Thank you for trusting MESA/Boogie to be your amplifier company and we wish you many years of toneful enjoyment from this handbuilt all tube instrument.
The Spirit of Art in Technology 1317 Ross Street Petaluma, CA 94954 USA (707) 778-6565 FAX NO. (707) 765-1503.
デバイスMesa/Boogie Big Block 750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:
Mesa/Boogie Big Block 750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Mesa/Boogie Big Block 750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。Mesa/Boogie Big Block 750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。Mesa/Boogie Big Block 750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。
Mesa/Boogie Big Block 750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Mesa/Boogie Big Block 750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、Mesa/Boogie Big Block 750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Mesa/Boogie Big Block 750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。