Model MA-9S1 User Guide Monaural Power Amplifier
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 ARE 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 Instructions – All the safety and operating instructions should be read before the product is operated. 2. Retain Instructions – The safety and operating instructions should be retained for future reference. 3.
Table of Contents 1. Instruction for use ................................................................................................................. 2 Foreword ................................................................................................................................................................................ 2 Equipment mains setting ...............................................................................................................................................
1. Instruction for use ■ Foreword This section must be read before any connection is made to the mains supply. 2. Accessories After opening the cover of the packing box, check that the following accessories are included. ● AC Power Cable ■ Equipment main AC power setting Your Marantz product has been prepared to comply with the household power and safety requirements that exist in your area. MA 9S1/N1G can be powered by 230 V AC only. MA 9S1/U1G can be powered by 120 V AC only.
3. Main features of this product ● The concept : Instantaneous current delivery capability Even if amplifiers 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 amplifiers depends on how instantaneous the current supply is.
4. Connections Connection 1 Stereo Bi-wiring Connection This connection can have options i.e. You may connect the units using either balanced or unbalanced cables.
4. Connections Connection 1 - 4 are recommended by Marantz for the SC-7S1 with Marantz MA-9S1s. All Connections are based on speaker systems that are capable of Bi-Wiring. Please read the instruction manual for the SC-7S1 for use. Name and Function ➔ P12 ■ Bi-Wiring ● The method is to improve sound quality, by connecting speaker cable respectively to each terminal for Bass and Mid/High speakers.
4. Connections Connection 2 Stereo Bi-Amp connection.
4. 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.
4. Connections Connection 3 Stereo complete Bi-Amp connection. (Make sure your speakers are designed for Bi Amp capabilities) As shown by connection 3 or 4, the control Amp SC-7S1 can be controlled through sets by wiring with the equipped remote control.
4. 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 7S1. ■ Complete Bi-Amp Connection Enhance connection 2, by having one more control Amp. SC7S1. This is a Complete Bi-Amp connection which separates Mid / High signal and Low signal from the Pre-Amp section. In this event, the SC-7S1 is using Monaural Amps. And separate Left/Right channels from the output terminal of CD players.
4. Connections ■ Installing the SACD multi-channel audio speakers In order to enjoy SACD 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). SACD multi-channel discs are recorded and mixed in such a way that they will achieve the optimum effects when the speaker systems are laid out as per the ITU-R BS.
4. 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 7S1. Connection 4 5.1ch multi-channel connection 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 SACD. The complete 5.1 system is controlled using 3 SC-7S1 Stereo Control Amplifiers.
5. Name and function Front panel Rear panel 햲 Power switch 햵 Level meter 햷 ATT (Attenuator) 햺 Speaker output terminal Press the power switch to turn the power on/off. When the power is on, the power indicator 3 will be illuminated. This meter is used to check the output power. The knob is to attenuate the input level. Initial set up is 0dB. Connect your speaker system to these terminals. Speaker cable wiring → p.
6. Specification ■ Specification ■ Dimensions Unit : mm 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 - 120 kHz (+0, –3dB) Damping factor ............................................................................ 200 (20Hz - 20kHz, 8Ω Load) Input sensitivity/ Input impedance ............... 1.
8. 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. The unit does not turn ON 1. Is the power cable securely plugged into an AC outlet? Sound is not coming from the speakers 1.
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.
www.marantz.com You can find your nearest authorized distributor or dealer on our website. U.S.A. Marantz America, Inc. 1100 Maplewood Drive, Itasca, IL 60143, U.S.A. is a registered trademark.
