APPENDIX A - SP1.7 Surround MODES

Pressing the MODE button will illuminate the LED and let you sequentially select one of the many available decoding modes for 2 channel signals. These special modes are designed to expand your enjoyment of almost any 2 channel music source and many other 2 channel signals. You are encouraged to experiment with the options on various sources. Not all will supply something you may like, but there are so many variables that it does pay to take a few moments to listen to the options. The custom SP1.7 Surround Modes use a set of DSP algorithms to create a set of simulated signals using the original left and right 2 channel data and feeds these to the to centre and surround speakers.

Surround Modes

Hall. This Sound Field Mode emulates a medium or large concert hall. It provides a longer reverberation time than other modes and gives the effect that music is heard at a greater distance from the performers. It is ideal for orchestral classical music and light orchestral music, such as that found on many film soundtrack albums, but this mode will generally sound a bit muddy on rock or pop music.

Theatre. This Sound Field Mode simulates a room larger than a club, and it is intended to simulate what you would hear in the front rows in a medium-size theatre. The reverberation here is not overly obtrusive, since a theatre is intended for clarity of speech. This mode is suited for opera, rock, easy listening music, and any music you might hear in a theatre.

Stadium. This Sound Field Mode provides a prominent “slap echo,” emanating largely from the rear, and it gives a lively effect especially on solo instruments such as bass guitar. This mode is unsuitable for speech as the echo destroys intelligibility. The sound is “big” but slightly artificial — it is suitable for stadium rock, and other music that one would hear in a large stadium environment.

Club. This Sound Field Mode is intended to simulate being fairly close, around 10 feet away, in a small intimate club setting with a moderate amount of reverberation that does not destroy clarity. The result is a bit colored for speech due to the small room size, but it is quite suitable for jazz groups, cabaret, small-venue rock ‘n roll, and a small disco venue where dance music is played. This mode can also be used for classical chamber music and solo instrumental music of most kinds.

Church. This Sound Field Mode simulates a large, spacious acoustic space with a very long reverberation time. It is well-suited to organ music, choral music, and New Age music. It is too reverberant for most other kinds of material, but it is very spacious for material it is suited to.

Natural. This mode enhances the basic stereo reproduction by using the inherent acoustics recorded within the source material. If the source material was surround encoded or recorded in an acoustically oriented manner (such as a lot of classical music and many live recordings) this mode can provide truly spectacular effects and an enhanced sense of the space in which the music was being performed.

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Bryston SP1.7 Series manual Appendix a SP1.7 Surround Modes
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SP1.7 Series specifications

The Bryston SP1.7 Series is a sophisticated audio preamplifier designed to deliver exceptional sound quality and versatility for home theater and audio enthusiasts. Known for its high fidelity and robust construction, the SP1.7 reflects Bryston's commitment to excellence in audio engineering.

One of the standout features of the SP1.7 is its advanced digital signal processing (DSP) capabilities. The unit supports a wide range of audio formats, including Dolby Atmos and DTS:X, ensuring that users can experience immersive sound in their home theater setups. The built-in DSP allows for room correction, which optimizes audio performance based on the unique acoustics of the listening environment, providing a more balanced and accurate sound.

The SP1.7 Series also boasts multiple HDMI inputs. With support for high-resolution audio formats, these inputs facilitate seamless integration with modern AV sources. The unit can handle 4K video pass-through, maintaining the highest quality for both audio and visual performance. This level of connectivity is essential for today's discerning consumers who demand versatility and convenience in their audio systems.

In terms of audio quality, the SP1.7 features top-notch components, including high-performance DACs (Digital-to-Analog Converters) and a low-noise power supply. This ensures that the signal path remains clean and free of interference, delivering crystal-clear audio reproduction. Furthermore, the SP1.7 supports among the highest industry standards for signal-to-noise ratio, ensuring that subtle details in the music or movie are preserved.

User-friendly operation is another hallmark of the SP1.7. The intuitive interface, complete with an easy-to-read display, allows users to navigate through settings effortlessly. The preamplifier is also equipped with robust remote control functionality, allowing users to manage their audio environment from a distance.

With its sleek design and solid build quality, the Bryston SP1.7 fits seamlessly into any home theater or audio system setup. Built to last, Bryston is known for offering a 20-year warranty on their products, reassured by their reputation for durability and reliability.

In summary, the Bryston SP1.7 Series stands out as a premier choice for audiophiles and home theater enthusiasts. With its advanced DSP capabilities, multiple connectivity options, superior audio quality, and user-friendly features, the SP1.7 combines cutting-edge technology with exceptional craftsmanship, making it a top contender in the realm of audio preamplifiers.
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