Main features of this product, Choke input system

3. Main features of this product

●The concept: channel separation for super

wide range & dynamic audio

We think it’s of the utmost importance to extend high frequency response as well as channel separation so you can hear the true meaning of “Super Audio.”

This is why we have designed the input and output cir- cuitry, volume control section, and power supply circuits according to this philosophy.

The result: an astonishing channel separation of over 100dB at 20kHz.

●Fully balanced control amp with an linear

volume control

The SC-7S1 is a full balanced, two-channel control amp providing the channel separation you need for Super Audio. Based on our own high quality four-gang active volume control we have developed an even better linear control volume that reduces gang errors from 0 to 100dB, ±0.5dB. By adding an additional HDAM SA (High Defini- tion Amplifier Module), we improved the Common Mode Reject Ratio (CMRR) dramatically, attaining an incredible ultra-wide frequency band of 150kHz and succeeded in producing the perfect control amplifier for Super Audio CD.

●HDAM SA

The feedback impedance of the Current Feedback cir- cuit was reduced to its minimum to make it faster. We developed a new High Definition Amplifier Modules (HDAM), a separeted module operating as a buffer for the amplifier. The SC-7S1 has four HDAM SAs on each input- output buffer and another four units on the V/I converter.

●Choke input system

In the power supply section, the choke input topology was adopted to drastically reduce rectifier harmonic noise. This system is especially suitable for a control amplifier in which very small signal amplification occurs.

●Floating control bus system

We make it possible to synchronously drive two or more control amps by using a floating control bus system con- nected to as many as 6 sets of control amplifiers. We also enable you to trim levels using the remote control, making it easy to set up the optimal sound field on a multi-channel configuration. The highest achievable ste- reo performance can be accomplished when a system configured with two sets of SC-7S1 and four sets of MA- 9S1 are connected in a bi-amped mode.

You will experience superb sound with unbelievable chan- nel separation.

SC-7S1 specifications

The Marantz SC-7S1 is a high-end audio preamplifier that epitomizes the brand's commitment to superior sound quality and innovative technology. Designed to cater to audiophiles and serious music enthusiasts, the SC-7S1 combines a range of advanced features and characteristics that set it apart in a crowded market.

One of the standout features of the SC-7S1 is its fully balanced design, which helps to minimize noise and signal degradation, delivering a clean and transparent audio signal. The unit incorporates Marantz's unique HDAM (Hyper Dynamic Amplifier Module) technology, which enhances dynamic range and provides a vibrant sound signature. This technology is pivotal in offering an engaging listening experience, making the musical nuances stand out.

The SC-7S1 also boasts an impressive range of connectivity options. It includes multiple inputs such as XLR, RCA, and phono, ensuring compatibility with a variety of source components, including turntables, CD players, and digital streaming devices. The inclusion of a high-quality phono stage makes it ideal for vinyl enthusiasts looking to extract the best possible sound from their records.

In terms of build quality, the SC-7S1 is designed with meticulous attention to detail. The chassis is solid and designed to reduce resonance, which contributes to the overall sonic performance. The large, well-crafted volume knob and intuitive layout of buttons and inputs make for an enjoyable user experience, allowing for easy operation even in complex audio setups.

Another notable characteristic of the SC-7S1 is its analog processing capabilities. The preamp features an advanced signal processing architecture, providing precise control over the audio output. It supports multiple listening formats and ensures that users can tailor their listening experience according to their preferences.

With its classic aesthetics and durable construction, the Marantz SC-7S1 is not only a robust performer but also an elegant addition to any audio setup. In summary, the SC-7S1 stands out for its balanced design, advanced technologies, exceptional connectivity, and meticulous build quality, making it an essential component for those serious about high-fidelity sound reproduction. Whether you're enjoying your favorite vinyl or streaming high-resolution audio files, the Marantz SC-7S1 delivers an unforgettable listening experience that truly embodies the essence of music.