Parasoundメーカー275の使用説明書/サービス説明書
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Model 275 T w o Channel P o w er Amplier O WNER’S GUIDE Model 2 7 5 T wo Channel Amplifier A B Power Model 275 Two Channel Amplifier Protect Hi Temp L R.
IMPORTANT SAFETY INSTRUCTIONS The lightning flash with the arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of “dangerous voltage” inside the product that may constitute a risk of electric shock.
TABLE OF CONTENTS 1 Unpacking and Accessories .......................................... 2 115v – 230v AC Selector Switch ........................................ 3 Ventilation Requirements ........................................... 3 Rack Mounting .
INTRODUCTION 2 Congratulations and thank you for your purchase of this precision Parasound audio component. The Parasound Model 275 is the latest generation of popular and proven audio power amplifiers dating back to 1981.
AC VOLTAGE, INSTALLATION AND RACK MOUNTING 3 115v - 230v AC Voltage Selector Switch This switch is found on the chassis rear panel. The 115V position of this switch is correct for North America; most other regions require setting it to 230V.
REAR PANEL CONNECTIONS AND CONTROLS 4 Connection Precautions Di sc on ne ct the AC co rd bef ore ma ki ng or ch an ging any inp ut , tr igge r, or sp ea ke r wire con ne ct io ns. Make sure there is no strain or tension on any wires that could cause them to pull loose.
High Pass Filter Switch The High Pass filter can improve the sound in virtually any installation. It’s called a “high pass” filter because it permits signals higher than 20 Hz and 40 Hz to pass, while preventing signals below these frequencies from passing.
REAR PANEL CONNECTIONS AND CONTROLS continued Correct Speaker Polarity is Important As you connect the speaker wires, you can see that the insulation on one of the two wires in each pair has either printing or a raised ridge. The marking lets you know which wire you con- nected to the positive speaker terminal at its other end.
REAR PANEL CONNECTIONS AND CONTROLS continued For a sin gle pair of 4 ohm or 8 ohm speaker s the Loa d Impedance switch may be set to its 4-8 Ohms positi on. The Load Impedance Switch must be set to 2-3 ohms whe never the load will be lower than 4 ohms.
REAR PANEL CONNECTIONS AND CONTROLS continued 8 Note: If the controller’s trigger output is a + and - terminal, you can cut the 2.5mm plug off one end of the included trigger wire and attach the bare wires to these terminals.
Power Button Press the Power button once to turn the Model 275 on, press it again to turn it off. The Power button is inoperative when the Auto Turn On switch is set to Audio or 12V. Note: It is normal for the 275 Protect indicator to flash briefly right after turn on.
Maintaining Your Model 275 Your Parasound Model 275 power amplifier requires no periodic maintenance other than the knowledge that you are bragging about it to your friends. It has no user-serviceable parts inside. To avoid the risk of electric shock, do not remove its top cover.
Call your Parasound dealer first. If the dealer can’t help you with your problem we encourage you to call Parasound’s Technical Service Department, toll-free at 1-866-770-8324 , Monday - Friday, 8am - 4pm Pacific time. We can suggest other diagnostic tests you can easily per- form.
Continuous RMS Power Output 20 Hz – 20 kHz, Both Channels Driven 75 wa tts x 2, 8 Ω 12 0 wa tts x 2, 4 Ω 12 0 wa tts x 2, 2 Ω Continuous RMS Power Output 20 Hz – 20 kHz, Bridged Mono 200 watts, 8 Ω 200 watts, 4 Ω Current Capacity 20 amps peak per channel Frequency Response 20 Hz - 50 kHz, +0/-3 dB, 1 watt Dynamic Headroom 1.
Notes: CONNECTION AND SETUP NOTES 13.
W e i n v i te y o u t o v i s it w w w .p ar as ou n d . co m f or t h e m o s t u p -t o- da te in fo rm a t i on on yo ur un it an d to fi nd ou t ab ou t o the r Pa ra sou nd pro d uc t s.
デバイスParasound 275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:
Parasound 275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Parasound 275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。Parasound 275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。Parasound 275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。
Parasound 275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Parasound 275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、Parasound 275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Parasound 275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。