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There are several factors that can degrade the sound from even the best loudspeakers in a listening room. One of the most important is the interaction of sound from the loudspeakers with large surfaces such as walls, the ﬂoor, and the ceiling in the room. Even with careful loudspeaker placement and acoustical treatments, there are signiﬁcant problems that are caused by room acoustics. These include reﬂections from nearby surfaces and standing waves that are created between large parallel surfaces in the room. In a home theater the situation is further complicated because there are several listening locations. The effects of room acoustics on the sound arriving at each person’s ears are very different and the result is a listening experience that is degraded in a different way for every person in the room. It is not uncommon to have variations in two adjacent seats that are as large as 10 dB, particularly in the frequency range below 250 Hz.

The solution to this problem is to apply room correction after precisely measuring how each loudspeaker interacts with the room. Because the room causes variations in the frequency response of the loudspeakers that are so large from seat to seat, it is important to measure each loudspeaker at several locations in the listening room. This should be done even if there is only one listener. Measurement at a single location is not representative of the acoustical problems in the room and will in most cases, degrade overall performance. Audyssey MultEQ is the only technology that can achieve room correction for multiple listeners in a large listening area. It does so by combining the data collected at several points in the room from each loudspeaker and then applying correction that minimizes the acoustical effects of the room and is matched to the frequency resolution of human perception (known as psychoacoustics). Furthermore, MultEQ correction is applied both in frequency and time domains and so there are no artifacts (such as smearing of sound or modal ringing)that are sometimes associated with traditional methods of room equalization.

In addition to correcting frequency response problems over a wide listening area, Audyssey MultEQ provides a completely automated sound system set-up process. It identiﬁes how many loudspeakers are connected to the ampliﬁers and whether they are full-range, satellites, or subwoofers. If there is a least one subwoofer connected, Audyssey MultEQ determines the optimum crossover frequency between each satellite and the subwoofer(s). It automatically checks the polarity of each loudspeaker and alerts the user if there are any that may be wired

out-of-phase relative to the others. It measures the distance to each loudspeaker from the main listening position and adjusts the delays so that sound from each loudspeaker arrives at the same time. Finally, Audyssey MuitEQ determines the playback level of each loudspeaker and adjusts the volume trims so that all levels are equal.

SR6001 specifications

The Marantz SR6001 is a high-performance audio/video receiver that was designed for home theater enthusiasts seeking an immersive cinematic experience. As part of Marantz's esteemed lineup, the SR6001 showcases a blend of advanced technologies and elegant design, making it an attractive choice for audio aficionados.

At the heart of the SR6001 is a robust amplifier section capable of delivering 90 watts per channel across seven channels, ensuring that your movies and music come to life with powerful clarity. This receiver supports a wide range of audio formats, including Dolby Digital, DTS, and PCM, allowing for a rich sound experience. The inclusion of Dolby Pro Logic II is a notable feature, offering enhanced sound staging and a more realistic audio environment.

One of the standout technologies in the SR6001 is its implementation of HDMI 1.1 ports, allowing for high-definition video and multi-channel audio transmission. This feature ensures that users can connect their latest Blu-ray players and gaming consoles to enjoy stunning visuals alongside breathtaking sound. The receiver also includes multiple inputs and outputs, enabling seamless integration with various components in your home theater setup.

Another key characteristic of the Marantz SR6001 is its advanced room calibration system, which helps to optimize audio performance based on your specific room acoustics. This technology, known as Audyssey MultEQ, analyzes the sound and makes adjustments to deliver the best possible listening experience regardless of your room's shape or furnishings.

Moreover, the SR6001 sports an elegant design, complemented by a front panel that features a sleek display and intuitive controls. Its user-friendly interface makes it easy to navigate through settings and options, ensuring that users can quickly access their favorite features without confusion.

In terms of connectivity, the Marantz SR6001 is equipped with a variety of inputs, including composite, component, and digital audio inputs, providing flexibility in connecting to different sources. Its built-in AM/FM tuner also allows users to enjoy radio broadcasts in high quality.

With its powerful performance, advanced technologies, and stylish design, the Marantz SR6001 finishes as a formidable choice for anyone looking to elevate their home entertainment experience.