Model MA-9S2 User Guide Monaural Power Amplifier MA-9S2 UN DFU 00 Cover Page 5 06.8.9, 1:32 PM Adobe PageMaker 6.
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.
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.
ENGLISH FRANÇAIS WARRANTY For warranty information, contact your local Marantz distributor. RETAIN YOUR PURCHASE RECEIPT Your purchase receipt is your permanent record of a valuable purchase. It should be kept in a safe place to be referred to as necessary for insurance purposes or when corresponding with Marantz. IMPORTANT When seeking warranty service, it is the responsibility of the consumer to establish proof and date of purchase. Your purchase receipt or invoice is adequate for such proof. FOR U.K.
ENGLISH TABLE OF CONTENTS INSTRUCTION FOR USE...................................................................................................................... 2 FOREWORD ....................................................................................................................................................... 2 EQUIPMENT MAINS WORKING SETTING ....................................................................................................... 2 COPYRIGHT ..................................
ENGLISH INSTRUCTION FOR USE ACCESSARIES After opening the cover of the packing box, check that the following accessories are included. FOREWORD This section must be read before any connection is made to the mains supply. • AC Power Cable EQUIPMENT MAINS WORKING SETTING Your Marantz product has been prepared to comply with the household power and safety requirements that exist in your area. MA-9S2/N1G can be powered by 230 V AC only. MA-9S2/U1G can be powered by 120 V AC only.
The concept : Instantaneous current delivery capability Even if amplifier have the same power specifications, their performance may not be the same due to a difference in current delivery capability. The delivery capability of power amplifier depends on how instantaneous the current supply is.
ENGLISH CONNECTIONS Connection 1 Stereo Bi-wiring Connection ：Audio signal ID NO. 1 2 3 Set to "1". 4 5 PUSH 6 SC-7S2 PUSH MODE or STEREO BI-AMP Set to "STEREO". or ATTENUATOR (-dB) -3 ATTENUATOR (-dB) 0 -3 Set to "0". -6 0 Set to "0". -6 -9 -9 -12 -12 MA-9S2 -∞ MA-9S2 -∞ for Lch PUSH Remove the short bar. for Rch PUSH MF / HF MF / HF LF LF Speaker Remove the short bar. Remove the short bar. L ch Speaker Remove the short bar.
ENGLISH 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 cable respectively to each terminal for Bass and Mid/High speakers.
ENGLISH CONNECTIONS Connection 2 Stereo Bi-Amp connection. (Make sure your speakers are designed for Bi Amp capabilities) ：Audio signal ID NO. 1 2 3 Set to "1". 4 5 PUSH 6 SC-7S2 PUSH MODE STEREO BI-AMP Set to "STEREO". ATTENUATOR (-dB) -3 ATTENUATOR (-dB) 0 -3 Set to "0". -6 0 Set to "0". -6 -9 -9 -12 -12 MA-9S2 -∞ PUSH for Rch MF/HF PUSH Remove the short bar. Remove the short bar. Remove the short bar. MF / HF Remove the short bar.
ENGLISH 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.
ENGLISH CONNECTIONS Connection 3 Stereo complete Bi-Amp connection. (Make sure your speakers are designed for Bi Amp capabilities) ID NO. 1 2 Set to "1". 3 ID NO. As shown by connection 3 or 4, the control Amp SC-7S2 can be controlled through sets by wiring with the equipped remote control. 1 2 3 4 : Audio signal 4 5 5 6 6 or or PUSH PUSH PUSH PUSH SC-7S2 MODE for Lch Set to "2". SC-7S2 MODE for Rch STEREO Bch can’t be used. or Bch can’t be used. BI-AMP or Set to "BI-AMP".
ENGLISH 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 Enhance connection 2, by having one more control Amp. SC7S2, this is a Complete Bi-Amp connection which separates Mid / High (MF/HF) signal and Low (LF) signal from Pre-Amp section.
ENGLISH CONNECTIONS INSTALLING THE SUPER AUDIO CD MULTI-CHANNEL AUDIO SPEAKERS ITU (INTERNATIONAL TELECOMMUNICATION UNION) In order to enjoy Super Audio CD multi-channel sound with the best possible acoustics, it is recommended that the speaker systems be laid out in compliance with the ITU-R BS.775-1 recommendation which is a standard formulated by the International Telecommunication Union (ITU).
CONNECTIONS Connection 4 5.1ch multi-channel connection 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. 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 Stereo Control Amplifiers.
NAME AND FUNCTION FRONT PANEL REAR PANEL e r y monaural power amplifier ma-9s2 PUSH INPUT SELECTOR 1 UNBALANCED-2 power on/off w q Power switch METER OFF ON BALANCED OFF q t u r Level meter Press the power switch to turn the power on/off. When the power is on, the power indicator e will illuminated. w Input selector This knob to select input source from Pre-Amp. e Power indicator The power indicator is illuminated while the power switch is on.
ENGLISH SPECIFICATION DIMENSIONS 8 SPECIFICATION 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) 451 Dumping factor ................................... 200 (20Hz - 20kHz, 8Ω Load) Input sensitibity/ Input impedance ..........
ENGLISH TROUBLE SHOOTING Should faults occur, in many cases it is not necessary to consult your dealer or a Marantz technical service department. On the basis of the following checks you will be able to rectify a number of faults yourself without difficulty. If the fault cannot be remedied after the following checks, please consult your dealer or nearest Marantz service agent. 7 The unit does not turn ON 1. Is the power cable securely plugged into an AC outlet? 7 Sound is not coming from the speakers 1.
www.marantz.com You can find your nearest authorized distributor or dealer on our website. is a registered trademark. Printed in Japan MA-9S2 UN DFU 00 Cover 08/2006 00M339J851320 mzh-g Page 4 06.8.9, 1:32 PM Adobe PageMaker 6.
