- Dolby Atmos Configurations: The following speaker configurations are supported for Dolby Atmos:
- Denon AVR-X4100W: 5.2.2 with internal amplifier and 5.2.4, 7.2.2 with addition of external 2 channel amplifier.
- Denon AVR-X3100W: Not supported.
- Configurations without height channels: There are also other speaker configurations available which do not include height channels:
- Denon AVR-X4100W: 5.2, 7.2 with internal amplifier and 9.2 with addition of external 2 channel amplifier.
- Denon AVR-X3100W: 5.2, 7.2 with internal amplifier.
- Front Wide Channel support: With the presence of two front wide speakers you can enhance the front surround stage. The following speaker configurations are available for front wide channels:
- Denon AVR-X4100W: 9.2.
- Denon AVR-X3100W: Does not support.
- 2-ch Bi-Amp: Both models are able to bi-amp up to 2 main channels simultaneously. During bi-amplification two amplifiers are used for one speaker. One amplifier powers the midrange and tweeter section of the speaker and another amplifier powers the low frequency woofers. Each amplifier is less loaded and performs better. In order to use this feature speakers must have 2 pairs of connectors.
Dolby Atmos
Denon AVR-X4100W supports Dolby Atmos. It is a cinematic audio format in which sounds exist as individual entities, called audio objects. In Dolby Atmos, any sound can exist as an independent audio object, free of channel restrictions. They can be precisely placed and moved anywhere in your room, including overhead, to flow above and around you in three-dimensional space. Through the use of audio objects, overhead sound, and all the richness, clarity, and power of Dolby sound, Dolby Atmos turns your room into an amazing place for entertainment. The format supports up to 128 simultaneous independent audio objects in a mix for rich, realistic, and breathtaking sound. It recreates the director's original concept through descriptive metadata to provide customized playback for home theater and delivers sounds above you through overhead speakers, special upward-firing Dolby Atmos speakers, or a Dolby Atmos enabled sound bar.
- Dolby Surround Upmixer: Denon AVR-X4100W supports Dolby Surround Upmixer. If the content is not mixed in Dolby Atmos then the Dolby surround upmixer will expand the audio to all channels including ceiling speakers. The upmixer has replaced the Dolby Pro Logic II family with improved upmixing algorithms.
Auro-3D
Denon AVR-X4100W supports Auro-3D. It is an immersive 3D audio format developed by the Belgium-based company Auro Technologies. It consists of three layers of sound - surround, height and overhead ceiling. The base horizontal layer uses 5.1 or 7.1 format, the height layer is on top of the base layer and its information is extracted from the standard 5.1 surround PCM carrier. The a/v receiver decoder then extracts this information during playback. In home cinema Auro-3D comes with different listening formats - Auro 9.1, Auro 10.1 with added Top Ceiling channel ("Voice of God"), Auro 11.1 with added Front Height Center channel, and Auro 13.1 with added Left Rear Surround & Right Rear Surround channel.
- Auro-Matic upmixer: Auro-Matic upmixer takes non Auro-3D sound and upmixes to the current speaker configuration.
Audyssey DSX
Denon AVR-X4100W and Denon AVR-X3100W support Audyssey DSX which allows you to augment a standard five-channel home theater with either two Front Wide or two Front High speakers. The Wide channels create an expansive soundstage and bring out convincing directional effects. Alternatively, Height channels can add a vertical dimension to movie and game soundtracks.
Sound Processing
- Audyssey: Denon AVR-X4100W comes with Audyssey Dynamic EQ, Dynamic Volume, LFC and Sub EQ HT. Denon AVR-X3100W comes with Audyssey Dynamic EQ and Dynamic Volume.
- Dynamic EQ: selects the best possible frequency response and surround volume levels moment-by-moment. This ensures that the bass response, tonal balance and surround impression remain constant despite changes in volume. This is the first technology that carefully combines information from incoming source levels with actual output sound levels in the room, a pre-requisite for delivering a dynamic volume solution.
- Dynamic Volume: Your Listening experience can be greatly diminished when there are significant shifts in volume between television programs, commercials and within the program material itself. When this happens you must constantly adjust the volume to maintain your desired listening level. Audyssey Dynamic Volume monitors the volume of program material moment-by-moment and automatically adjusts it, maintaining the desired listening level for all content while optimizing the dynamic range to preserve impact.
- LFC (Low Frequency Containment): While high frequencies are easily stopped by walls low frequencies pass right through. After identifying the frequency range that most readily passes through walls Audyssey developed a technique, called Audyssey LFC (Low Frequency Containment) that reduses the volume at those frequencies and applies psychoacoustic processing to restore the perception of low bass for listeners in the room. The result is no more angry neighbors and no loss of enjoyment for listeners.
- Sub EQ HT: Placing two subwoofers in the room can cause problems, they can create standing waves or even cancel each other out resulting in even less bass than a single sub can produce. Audyssey Sub EQ HT allows two subwoofers to be properly used in a home theater system. The process is automated and takes only a few minutes. The result is rich, full bass for everyone in the room.
- D.D.S.C. (Dynamic Discrete Surround Circuit): Denon AVR-X4100W has 24-bit D.D.S.C. A single IC chip is generally used in processing A/D, DSP, and D/A conversions that are vital to sound quality. The D.D.S.C. uses separate components to process the important sections of the A/D, DSP, and D/A conversions and therefore significantly improves signal processing capability and performance. In addition, the approach of developing and incorporating high-quality dedicated elements in the sections that configure the circuitry makes it easier to develop a high-grade, advanced surround circuit compared with the method where all processing is concentrated within a single chip. Denon’s proprietary digital audio technology that had for many years been developed for pure Hi-Fi components is now also alive in each block of the D.D.S.C.
- ALPHA Processing: Denon AVR-X4100W has AL24 Processing.
- AL24 Processing is analog waveform reproduction technology that represents a further advancement over Denon’s Adaptive Line Pattern Harmonized Algorithm Processing that won high acclaim for its exceptional sound quality. It has not only further reduced quantization noise but also supported the higher numbers of bits and sampling rates that have been drawing attention in next-generation media. To achieve audio output of 24-bit quality, AL24 Processing generates low-order 8-bit data by doubling the processing circuitry of the low-order data generator and processing the data internally, and then adds the 16 high-order bits. AL24 Processing interpolates the signal that was lost when the original sound was recorded as digital data so that it can faithfully reproduce the smooth analog waveform that existed prior to recording. AL24 Processing supports not only 16-bit but also 18-, 20-, and 24-bit digital input. With AL24 Processing, it is now possible to actually hear the delicate low-level resonances of music that had been absorbed by the concert hall and were difficult for conventional systems to reproduce.
- Compressed Music Enhancer: Denon AVR-X4100W and Denon AVR-X3100W feature Compressed Music Enhancer which enhances the quality of the music files with lossy compression.
Room Calibration
Denon AVR-X4100W comes with Audyssey MultEQ XT32 + PRO and Denon AVR-X3100W comes with Audyssey MultEQ XT + PRO room correction system.
- Audyssey Room Calibration: Audyssey is an acoustic measurement technology which automatically restores the acoustic distortion caused by the acoustic behaviour of a room with only a push on a button. Audyssey equalization provides an clear, accurate, natural sound with voices and dialog that become focused and intelligible, restoring the musical balance. Musical instruments and sound effects become precisely localized and the surround soundstage is made seamless and enveloping.
