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Model MA-9S2 User Guide
Monaural Power Amplifier
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CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK) NO USER-SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within
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IMPORTANT SAFETY INSTRUCTIONS READ BEFORE OPERATING EQUIPMENT This product was designed and manufactured to meet strict quality and safety standards. There are, however, some installation and operation precautions which you should be particularly aware of. 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions. 5. Do not use this apparatus near water. 6. Clean only with dry cloth. 7. Do not block any ventilation openings. Install in accordance wi
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ENGLISH FRANÇAIS WARRANTY GARANTIE For warranty information, contact your local Marantz distributor. Pour des informations sur la garantie, contacter le distributeur local Marantz. RETAIN YOUR PURCHASE RECEIPT Your purchase receipt is your permanent record of a valuable CONSERVER L'ATTESTATION D'ACHAT purchase. It should be kept in a safe place to be referred to as L'attestation d'achat est la preuve permanente d'un achat de valeur. necessary for insurance purposes or when corresponding with La
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TABLE OF CONTENTS INSTRUCTION FOR USE...................................................................................................................... 2 FOREWORD .......................................................................................................................................................2 EQUIPMENT MAINS WORKING SETTING .......................................................................................................2 COPYRIGHT .................................
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ENGLISH INSTRUCTION FOR USE ACCESSARIES After opening the cover of the packing box, check that the FOREWORD following accessories are included. This section must be read before any connection is made to • AC Power Cable the mains supply. EQUIPMENT MAINS WORKING SETTING (MA-9S2/N1G) (MA-9S2/U1G) Your Marantz product has been prepared to comply with the household power and safety requirements that exist in your • Instruction Manual (this Copy) area. MA-9S2/N1G can be powered by 230 V AC only. MA-9
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MAIN FEATURE OF PRODUCT 7 The concept : Instantaneous 7 Fully balanced monaural power current delivery capability amp Even if amplifier have the same power specifications, their To minimize the influence of strong “kick back current” occurring performance may not be the same due to a difference in current from the loudspeaker system, the circuit for the power amp delivery capability. consists of two amplifiers giving a voltage gain amp of 23dB, The delivery capability of power amplifier depend
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ENGLISH CONNECTIONS Connection 1 Stereo Bi-wiring Connection Audio signal ID NO. ID NO. 1 2 Set to "1". 3 4 PUSH 5 6 PUSH SC-7S2 MODE STEREO BI-AMP Set to "STEREO". ATTENUATOR (-dB) ATTENUATOR (-dB) 0 0 0 0 - -3 3 - -3 3 - -6 6 Set to "0". - -6 6 - -9 9 - -9 9 - -12 12 - -12 12 - - MA-9S2 - - MA-9S2 for Lch for Rch PUSH PUSH MF / HF MF / HF LF LF Remove the short bar. Remove the short bar. Remove the short bar. Remove the short bar. Speaker Speaker L ch R ch This connection can have op
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CONNECTIONS Connection 1 - 4 are recommended by Marantz for the SC-7S2 with Marantz MA-9S2s. All Connections are based on speaker systems that are capable of Bi-Wiring. Please read the instruction manual for the SC-7S2 for use. Name and Function ➔ P12 BI-WIRING WIRING SPEAKER CABLE The method is to improve sound quality, by connecting speaker • Be careful not to short circuit in wiring speaker cables. cable respectively to each terminal for Bass and Mid/High • Peel off the corting of speaker c
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ENGLISH CONNECTIONS Connection 2 Stereo Bi-Amp connection. (Make sure your speakers are designed for Bi Amp capabilities) Audio signal ID NO. ID NO. 1 2 Set to "1". 3 4 PUSH 5 6 PUSH SC-7S2 MODE STEREO BI-AMP Set to "STEREO". (- ) (- ) ATTENUATOR dB ATTENUATOR dB 0 0 0 0 - -3 3 - -3 3 - -6 6 - -6 6 Set to "0". Set to "0". - -9 9 - -9 9 - -12 12 - -12 12 MA-9S2 MA-9S2 - - - - for Lch MF/HF for Rch MF/HF PUSH PUSH Remove the short bar. Remove the short bar. Remove the short bar. Remove the
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CONNECTIONS Enhance connection 1 to Bi-Amp connection, and drive the bass speaker and Mid / High Frequency speakers with separate power Amplifiers. BI-AMP (CONNECTION) The benefits of Bi-Wiring; drive the bass speaker and Mid / High speakers with separate power Amplifiers. Bi-Amping will lessen the burden of Power Amp impedance, so that back electromotive force between the Low and Mid/High signal can be lessened. We can expect drastic improvement of sound quality. Bi-Amp Connection Speaker sys
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ENGLISH CONNECTIONS Connection 3 Stereo complete Bi-Amp connection. (Make sure your speakers are designed for Bi Amp capabilities) ID NO. ID NO. ID NO. ID NO. As shown by connection 3 or 4, the control Amp SC-7S2 can be controlled 1 1 2 2 through sets by wiring with the equipped 3 Set to "1". 3 remote control. 4 4 : Audio signal 5 5 6 6 or or Set to "2". PUSH PUSH PUSH PUSH SC-7S2 SC-7S2 MODE MODE for Lch for Rch STEREO BI-AMP Bch can’t be used. STEREO BI-AMP Bch can’t be used. or or Set to
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CONNECTIONS This connection can have options i.e. You may connect the units using either balanced or unbalanced cables. But, you have to use the same cables per SC-7S2. COMPLETE BI-AMP CONNECTION BALANCED TERMINAL Enhance connection 2, by having one more control Amp. SC- q The balanced output connector uses a XLR connector. 7S2, this is a Complete Bi-Amp connection which separates Mid / High (MF/HF) signal and Low (LF) signal from Pre-Amp w The XLR connector is internally wired in either of the
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ENGLISH CONNECTIONS INSTALLING THE SUPER AUDIO ITU (INTERNATIONAL CD MULTI-CHANNEL AUDIO TELECOMMUNICATION UNION) SPEAKERS The ITU is a special organization of the United Nations. It consists of a number of organs, one of which is the Radio In order to enjoy Super Audio CD multi-channel sound with Broadcasting Section. the best possible acoustics, it is recommended that the speaker ITU-R BS in the recommendation which consists of standards systems be laid out in compliance with the ITU-R BS.77
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CONNECTIONS Connection 4 5.1ch multi-channel connection This connection can have options i.e. You may connect the units using either balanced or unbal- anced cables. But, you have to use the same cables per SC-7S2. Below is the standard connection for a Multi-channel sound source. This will enable you to experience the high quality sound acoustic for the professional Home theatre and pure multi channel audio. The complete 5.1 system is controlled using 3 SC-7S2 WIRING SPEAKER SYSTEM Stereo Cont
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NAME AND FUNCTION FRONT PANEL REAR PANEL e r y - monaural power amplifier ma 9s2 PUSH METER OFF INPUT SELECTOR power on/off 1 ON UNBALANCED-2 BALANCED OFF wqt ui o !0 q Power switch r Level meter y ATT (Attenuator) o Speaker output terminal Press the power switch to turn the power on/off. When the The meter is used to check output power. The knob is to attenuate input level. Connect your speaker system to these terminals. power is on, the power indicator e will illuminated. Initial set up is 0
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SPECIFICATION SPECIFICATION DIMENSIONS Power Output (20Hz - 20kHz) ............................................................ 300W (8Ω Load) ............................................................ 600W (4Ω Load) T.H.D. (20Hz - 20kHz, 8Ω Load) .............................................. 0.01% Frequency response (1W, 8Ω Load) ....... 3 Hz - 150 kHz (+0, –3dB) Dumping factor ................................... 200 (20Hz - 20kHz, 8Ω Load) Input sensitibity/ Input impedance ................
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ENGLISH 7 If the amplifier overheats TROUBLE SHOOTING In the following cases, the amplifier will overheat and the protective circuit will work . Should faults occur, in many cases it is not necessary to consult • If the unit is used with the ventilation blocked or obstructed your dealer or a Marantz technical service department. • If speakers of less than 4 Ω impedance are used On the basis of the following checks you will be able to rectify • If the unit is used for an extended period of time u
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www.marantz.com You can find your nearest authorized distributor or dealer on our website. is a registered trademark. Printed in Japan 08/2006 00M339J851320 mzh-g Page 4 06.8.9, 1:32 PM
