Trouble Shooting, Maintenance | Marantz MA-9S2 specs

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.

7The unit does not turn ON

1.Is the power cable securely plugged into an AC outlet?

7Sound is not coming from the speakers

1.Has the wrong input source been selected with the INPUT SELECTOR on the front panel?

2.Is the ATTENUATOR switch set to -∞on the rear panel?

3.Are speaker cables properly connected to the speaker system?

4.Is the connection cable properly connected to the control (pre) amplifier?

5.Is the control (pre) amplifier or input source wrongly set?

6.Are you using the player in the wrong way?

7.The protective circuit of this unit may have worked. Shut power OFF, wait 1 minute or more, then reactivate the power.

ABOUT THE PROTECTIVE CIRCUIT

This unit incorporates a protective circuit that protects the amplifier circuit and speaker system against damage. If the protective circuit works, the power indicator in the meter flashes, and sound is muted (no sound). This protective circuit works in the following cases.

7At power ON

It takes approximately 8 seconds for the amplifier circuit to stabilize after the power is turned on, during which time the protective circuit works and sound is muted (no sound). Also during this time, the power indicator in the meter flashes.

Once the amplifier circuit has stabilized, the protective circuit is released, and sound can be heard.

7If overcurrent flows to the amplifier

circuit (Overcurrent protection)

If overcurrent flows to the amplifier circuit because of excessive signal input or if the unit is used with speakers of less than 4 Ω impedance connected to it, overcurrent is detected and the protective circuit engage. The protective circuit also works if the speaker cables are accidentally shorted.

The power indicator in the meter flashes when the protective circuit works, so check the power indicator.

If it has worked, shut power OFF, wait 1 minute or more, then reactivate the power.

7If the amplifier overheats

In the following cases, the amplifier will overheat and the protective circuit will work .

•If the unit is used with the ventilation blocked or obstructed

•If speakers of less than 4 Ω impedance are used

•If the unit is used for an extended period of time under excessive signal input.

MAINTENANCE

The section describes the care and maintenance tasks that must be performed to optimize the operation of your Marantz equipment.

7Cleaning of equipment external

surfaces

The exterior finish of your unit will last indefinitely with proper care and cleaning, Never use scouring pads, steel wool, scouring powders or harsh chemical agents (e.g., lye solution), alcohol, thinner, benzine, insecticide or other volatile substances as these will mar the finish of the equipment. Likewise, never use cloths containing chemical substances. If the equipment get dirty, wipe the external surfaces with a soft, lint-free cloth.

If the equipment becomes heavily soiled:

•dilute some washing up liquid in water, in a ratio of one part detergent to six parts water.

•dip a soft, lint free in the solution and wring the it is damp.

•wipe the equipment with the damp cloth.

•dry the equipment by wiping it with a dry cloth.

7Repairs

Only the most competent and qualified service technicians should be allowed to service the factory-trained warranty station personnel have the knowledge and special facilities needed for repair and calibration of this precision equipment. After the warranty period has expired, repairs will be performed for a charge if the equipment can be returned to normal operation. In the event of difficulty, refer to your dealer or write directly to the nearest location to you that is listed on the Marantz Authorized Service Station list. If writing, please include the model and serial number of the equipment together with a full description of what you think is abnormal about the equipment's behaviour.

MA-9S2 specifications

The Marantz MA-9S2 is a high-end power amplifier that epitomizes audio excellence, specifically engineered for audiophiles and those seeking unparalleled sound quality. Launched as part of Marantz's prestigious Reference Series, the MA-9S2 represents the pinnacle of the brand's amplification technology, showcasing a sophisticated blend of traditional craftsmanship and innovative design.

One of the standout features of the MA-9S2 is its dual-mono configuration. This design separates each channel's power supply, thereby minimizing crosstalk and enhancing channel separation. As a result, the amplifier delivers an incredibly pure and clear soundstage, allowing listeners to experience their music with unprecedented clarity and detail.

The MA-9S2 is equipped with Marantz's proprietary Current Mode Amplification technology. This technology ensures that the amplifier can handle a wide range of speaker impedances and delivers a stable and dynamic performance, even at high volumes. The amplifier has a continuous output of 200 watts per channel into 8 ohms, which significantly increases to 400 watts into 4 ohms, making it versatile enough to drive an array of speaker types and configurations.

Additionally, the MA-9S2 features a fully discrete output stage, which contributes to its rich and lush sound signature. Each component is meticulously selected to maintain the purity of the audio signal, resulting in low distortion and an expansive frequency response. This design philosophy aligns with Marantz's dedication to creating an authentic music experience.

In terms of build quality, the MA-9S2 is housed in a robust chassis that minimizes resonance and electromagnetic interference. The use of premium materials further enhances its durability and aesthetic appeal, presenting an elegant addition to any audio setup. The amplifier also incorporates advanced cooling technologies, ensuring it operates efficiently without overheating, even during long listening sessions.

Connectivity is another strong point of the MA-9S2. It includes balanced XLR inputs and single-ended RCA inputs, allowing for various hookup options according to user preferences. Its attention to detail also includes high-quality binding posts, ensuring a solid and reliable connection to speakers.

Overall, the Marantz MA-9S2 power amplifier represents a masterclass in audio engineering, merging innovative technology with a dedication to sound purity. For avid music enthusiasts, it stands as a formidable choice in delivering a transcendent listening experience.