ENGLISH

CONNECTIONS

INSTALLING THE SUPER AUDIO CD MULTI-CHANNEL AUDIO SPEAKERS

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).

Super Audio CD 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.775-1 recommendation.

•On Super Audio CD multi-channel discs, the music signals are basically recorded using 5 channels (or 3, 4 or 6 channels in some cases). In some instances, however, LFE (for the sub woofer) is recorded as a sixth channel.

Each disc indicates how many channels have been recorded on it.

•The basic settings are 3 speakers for front and 2 for back since multi-channel discs have basically 5 channels The 2-front, 1-center, and 2-surround speakers should be set on the circle from the listening point as shown below. When you use different sizes of speakers, please adjust the volume balances.

•The location of the sub-woofer in the picture is just to you a patter of settings. Sub-woofer can be located any place in your room. (See the users manual of your sub-woofer.)

ITU (INTERNATIONAL TELECOMMUNICATION UNION)

The ITU is a special organization of the United Nations. It consists of a number of organs, one of which is the Radio Broadcasting Section.

ITU-R BS in the recommendation which consists of standards relating to broadcasting (audio) operations, one of which is the ITU-R BS.775-1 which governs “multi-channel stereo sound systems.”

Sub-woofer

Center

 

speaker

Front speaker

Front speaker

(Left)

(Right)

60°

approx. 110°

approx. 110°

Reference listening

position

Rear speaker

Rear speaker

(Left Surround)

(Right Surround)

10

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Marantz MA-9S2 manual Installing the Super Audio CD MULTI-CHANNEL Audio Speakers, ITU International Telecommunication Union
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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.
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