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Reference Next Generation HD A/V Surround Amplifier featuring Advanced Connectivity, Wi-Fi Network Audio Streaming and an interface that enhances your level of entertainment enjoyment

Features - AVC-A1HDA

State-of-the-art DENON Solutions

  • THX Ultra2 certified 150W x 7ch power amplifier
  • All new circuit layouts that shorten audio and video signal paths for best picture and sound
  • Discrete Devices for ultimate performance in each circuit block (D.D.S.C.-HD)
  • Dolby TrueHD and DTS-HD Master Audio decoders
  • To preserve original sound quality for the room's acoustics at any volume level, Audyssey Dynamic EQ, MultEQ-XT and Dynamic Volume technology
  • Realta sxT2 HQV processing for i/p and scaling
  • Deep Color (30/36-bit) and xvYCC broader color space support
  • Discrete construction and circuitry for highest quality video processing
  • HDMI to HDMI scaling up to 1080p
  • HD/SD video noise reduction functionality

Connectivity & Future-ready Expandability

  • Network Audio and Photo Streaming
  • Compressed Audio Restorer to enhance digital music files


  • New user interface for easy operation, setup and digital media browsing (G.U.I.)
  • GUI-assisted operation even during 1080p output from HDMI
  • Dual HDMI outputs enabling simultaneous output to video projector and flat panel
  • Three Analogue and One Digital, Four Zone multi-source capability
  • Zone 2 OSD with text, Album art is also available
  • Web setup, save and load all settings via Ethernet

Downloads - AVC-A1HDA

pdf file
Product Information Sheet-AVC_A1HD

1.67 MB

pdf file
Instruction manual

12.77 MB

Reviews And Awards - AVC-A1HDA

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Technology - AVC-A1HDA

  • Audyssey DSX

    This new technology extends 5.1- and 7.1-channel sound sources to a wider and higher dimension considering the human perception that is usually focussed on the front. A more spacious sound is
    achieved through a pair of wide speakers placed wider than the usual front speakers, and
    a greater sense of height in sound is achieved by adding two height speakers above the

    Read more about this breathtaking new technology here.

  • Hollywood Quality Video (HQV)

    Silicon Optix (the company behind the Realta chip) and Teranex (the company behind high definition professional broadcasting platforms) enable a new benchmark standard of video excellence called Hollywood Quality Video. Teranex‘s broadcasting platform has been integrated into the Realta chip. Teranex’s software algorithms, which have been refined over 100,000 hours of content verification and are recongnised in the industry for a very high level of quality, have been incorporated to run on Realta.

    Realta’s architecture for the HQV chip includes the industry’s first fully software programmable video array processor capable of performing over 1 trillion operations per second, an Image Fidelity Enhancement Engine and end-to-end true 10-bit image processing. These core technologies combine together to enable the simultaneous processing of dual high-definition image streams, delivering HQV into home entertainment and professional video display products. The Denon DVD-A1XV is the first DVD player for the home entertainment market to incorperate HQV technology.

    For more information, go to; www.siliconoptix.com

  • ALPHA Processing

    ALPHA processing is the world's first technical formula for reproducing an analog waveform from the reproduction of 16-bit data in 20-bit quality. The ALPHA processer interpolates the digital data recorded on a CD and reproduces it in a waveform that is very close to the way these musical signals would look in a natural analog waveform.

  • Audyssey MultEQ-XT with Dynamic EQ
  • Cinema Equalizer

    The sound from movie sources recorded in Dolby Digital, DTS, or other formats emphasizes high-frequency range due to a theater’s front speakers being placed behind the movie screen. If this sound is reproduced in the home theater without correction, the high-frequency range is too strong. Denon amplifiers feature a Cinema Equalizer to correct these high-frequency components so that the sound is clearer and easier to listen to. (For Dolby Digital, Dolby Pro Logic II, and DTS surround modes.)

  • D.D.S.C. HD Digital

    D.D.S.C.-HD for high-quality high definition Sound Reproduction: DDSC (Dynamic Discrete Surround Circuit)-HD (High Definition) Digital is a circuit configuration specially designed by Denon in which all elements of the surround processor are optimized through the use of selected high-performance discrete components, including separate A/D and D/A converters, with sophisticated HD DSP surround decoding.


    Connected via a shielded twisted pair (STP) RJ-45 fitted cable to a Denon Link-compliant A/V amplifier, the balanced signal transfer offers lower voltage than coaxial or unbalanced cables. Since DENON Link is far less susceptible to radiated noise, it ensures the highest level of signal transfer. The DENON Link interface is able to transfer high grade LPCM 24-bit, 192kHz, 2-channel and 96kHz, 24-bit, multi-channel digital output. Since Denon Digital Link uses low-voltage differential signaling (LVDS), transfer capabilities of greater than 1.2 Gbps at a differential voltage of approximately 0.3 Vpp are possible. Click here for a detailed explanation of DENON LINK 4th.

  • Dolby Digital EX

    In a movie theater, film soundtracks that have been encoded with Dolby Digital surround EX technology are able to reproduce an extra channel which has been added during the mixing of the program. This channel, called Surround Back, places sounds behind the listener in addition to the currently available front left, front center, front right, surround right, surround left and subwoofer channels. The additional channel provides the opportunity for more detailed imaging behind the listener and brings more depth, spacious ambience and sound localization then ever before. Dolby Digital EX is not available in the system without surround back speaker(s).

  • Dolby Digital-Decoder

    Dolby Digital is the multi-channel digital signal format developed by Dolby Laboratories. Dolby Digital consists of up to "5.1" channels - front left, front right, center, surround left, surround right and an additional channel exclusively reserved for additional deep bass sound effects (the Low Frequency Effects - LFE - channel, also called the ".1" channel, containing bass frequencies of up to 120Hz).

    Unlike the analog Dolby Pro Logic format, Dolby Digital's main channels can all contain full range sound information, from the lowest bass, up to the highest frequencies - 22kHz. The signals within each channel are distinct from the others, allowing pinpoint sound imaging and Dolby Digital offers tremendous dynamic range from the most powerful sound effects to the quietest, softest sounds, free from noise and distortion.

  • Dolby Headphone

    In conventional headphones, sound is directed into the listener’s ears from two sides in order to preserve the stereo effects from the speakers. Dolby Headphone, however, generates signals that more closely emulate surround sound from the speakers to give you a more realistic multi-channel sound effect through your headphones. Dolby Headphone provides three modes:

    DH1: Referred to as Dolby Headphone “Reference Room,” this mode recreates a small, acoustically “dry” room, well suited to both music and movie programmes.

    DH2: This mode has an acoustically softer effect than DH1, and is best suited for music recordings.

    DH3: This mode gives a greater sense of distance and sonic dispersion to create a large room such as a concert hall or movie theatre.
    Dolby Headphone supports Dolby Pro Logic, Pro Logic ll, and Dolby Digital as well as stereo and multi-channel signals. Dolby Headphone reproduces the sonic experience you receive through your speakers from stereo or multi-channel sources

  • Dolby Pro Logic II

    The Dolby Pro Logic ll decoder reproduces dynamic 5.1-channel surround sound from 2-channel sources such as TV, videos and CDs. Dolby Pro Logic ll uses matrix-decoding technology that has been dramatically improved over Pro Logic. With Pro Logic ll, for instance, the Surround channels are in stereo instead of just mono with Pro Logic, and playback covers the full frequency range instead of just up to 7kHz with Pro Logic. These improvements let you enjoy a wide variety of 2-channel sources with the exciting effects of 5.1-channel surround sound. In Dolby Pro Logic ll, there is a Movie mode (*1) that creates a sound field for movies, a Music mode that does the same for music, and a Pro Logic emulation feature that reproduces sound effects in the way that conventional Pro Logic does.

    Dolby Pro Logic II Music: The music mode creates a rich and enveloping surround ambience delivered to the subwoofer, optimizing the visceral of planned rear effects. This mode can only be used with 2-channel audio sources.

    Dolby Pro Logic II Cinema: The Cinema mode is optimized for movies or programs with Dolby Surround soundtracks. This mode is also appropriate for use with video game.

    Dobly Pro Logic II Game: The game mode was implemented to ensure that the bass impact from pure surround effects are fully delivered to the subwoofer, optimizing the visceral of panned rear effects. This mode can only be used with 2-channel audio sources.

  • Dolby Pro Logic IIx

    Dolby Pro Logic IIx is an extension of Dolby Pro Logic II technology. This highly sophisticated algorithm processes native stereo and 5.1 channel content to produce 6.1 or 7.1 output channels. And Dolby Pro Logic IIx is not available in the system without surround back speaker(s).

    Dolby Pro Logic IIx Music: The music mode creates a rich and enveloping surround ambience delivered to the subwoofer, optimizing the visceral of planned rear effects. This mode can only be used with 2-channel audio sources.

    Dolby Pro Logic IIx Cinema: The Cinema mode is optimized for movies or programs with Dolby Surround soundtracks. This mode is also appropriate for use with video game.

  • Dolby TrueHD

    Dolby TrueHD is a completely loss-free Audio-Codec for high resolution audio for up to 8 channels Supporting 24-Bit and sampling rates up to 192 kHz. It requires specific Dolby HD decoders. Since the resulting signal is bit-to-bit to the master you can achieve the ultimate in audio quality.

  • DTS 96/24

    DTS 96/24 allows high-quality 5.1 channel sound playback with full-quality, full-motion video. DTS 96/24 allows both digital audio output and video output from your existing DVD player and is backward compatible with existing DTS decoders for normal DTS 5.1 playback. DTS 96/24 actually exceeds the resolution of most film soundtrack masters to date, and will initially apply mainly to high quality DTS music DVD discs.

  • DTS-Decoder

    A data compression method developed by Digital Threater Systems that takes six channels of audio (5.1) and folds them into a single digital bitstream. This differs from Dolby Digital in that the data rate is a somewhat higher 1.4 Mbs, which represents a compression ratio of about 4 to 1.In order to take advantage of this DVD feature, a DTS decoder is required. DTS decoders are installed internally in Denon players and A/V recievers.

  • EL-Touch-Panel Remote Control

    Electroluminescent display which is very similar to the technology employed by LCD backlights. Electroluminescence is a simply light (radiant energy) created by an electrical field that does not result in heat. On the Denon remote the luminous blue color of the buttons is merely the backlight being allowed through the insulating surface that covers the remote’s functions. Each function, or button, has its own parent EL area and the EL backlight is configured so as to allow different buttons to become lit when certain modes are engaged.

  • HDMI-output (HDCP)

    HDMI (high definition multimedia interface), a new connector that bases itself on the DVI-HDCP model. HDMI supports uncompressed high definition video plus multi-channel audio in a single cable using a smaller connector that eliminates the need for multiple cables in home entertainment systems, simplifying installation and eliminating cross technology confusion. It transmits uncompressed digital video so that the picture maintains a high quality of color depth, brightness and contrast. It also supports Consumer Electronics Control (CEC) based on the AV.link protocol so it can be controlled with a universal remote that is used with multiple HDMI sources such as Denon DVD players. HDMI supports bi-directional coommunciation between devices, allowing DVD players to communicate with Plasma's, LCD screens and Projectors, as long as they are HDCP compatible.
    The HDMI connection supports every uncompressed standard, enhanced and high definition video format ranging from 480I to 480P, 720P, 1080I and 1080P as well as existing PAL formats. It also has the bandwidth to support compressed audio formats such as Dolby Digital, Dolby Digital EX, DTS, DTS EX and uncompressed formats (PCM audio) up to eight channels, up to 192kHz, up to 24-bits.

    High Definition Multimedia Interface(HDMI) and High Definition Content Protection (HDCP) is a copyright protection system installed on most Plasmas, LCD's and projectors consisting of a HDMI or DVI input. All Denon DVD players require HDCP compliant displays to be fully compatible. It prohibits the copying of copyrighted material, like onto a VCR or DVD-recorder.

  • THX Ultra2

    THX Ultra2 Cinema Mode produces appropriate soundfield effects when 5.1 channel movie sources (without Dolby EX or DTS-ES encoded effects) are played in a 7.1 channel system. Also, with the advent of very high speed digital processing, more sophisticated trimming is applied to accurately recreate a large theatre-type sound in a conventional home cinema size room. Advanced processing widens the rear soundstage and the result is that the side surrounds deliver predominantly ambient information, the “surround-back” channels directional information. Likewise, the THX Music Mode produces appropriate soundfield effects for Dolby Digital, DTS, and other 5.1 channel music sources when they are played in a 7.1-channel system.

  • DTS Neo:6 Cinema & DTS-Neo:6 Music

    This mode decodes 2-channel signals into 6-channel signals using high accuracy digital matrix technology. The DTS NEO:6 decoder has near discrete properties in the frequency characteristics of the channels as well as in channel separation.

    According to the signals being played back, DTS NEO:6 Cinema mode optimized for playback or the DTS NEO:6 Music mode optimized for music playback.

  • EI-Transformer
  • HDCD-Decoder

    HDCD-encoded CDs are encoded with 20 bits of real musical information, as compared with 16 bits for all other CDs. HDCD overcomes the limitation of the 16-bit CD format by using a sophisticated system to encode the additional 4 bits onto the CD while remaining completely compatible with the existing CD format. HDCD provides more dynamic range, a more focused 3-D soundstage, and extremely natural vocal and musical timbre. With HDCD, you get the body, depth, and emotion of the original performance not a flat, digital imitation.

  • Virtual-Surround

    This feature allows a sensational surround 3D soundfield to be created using just one pair of speakers. The Denon amplifiers Virtual Surround mode provides a dramatic psychoacoustic surround sound effect, using two speakers with Dolby Digital 5.1 encoded sources.

  • Auto Setup and Auto Room EQ with Audyssey MultEQ XT

    The Audyssey MultEQ XT allows room correction and calibration technology. During the Auto Set-Up mode, MultEQ XT automatically determines how many loudspeakers are connected, whether they are connected in phase and whether they are satellites or subwoofers. When it has processed this it then analyzes and calibrates speaker level, size, and distance. In addition, MultEQ XT detects the proper crossover point and determines correct frequency response for up to eight listener positions simultaneously. This is the first system to optimize and compensate the system for more than one listening location at the same time giving nearly every listener in the room a "sweet spot" no matter where they're sitting. Denon's implementation of MultEQ XT uses multiple Texas Instruments' Aureus DSP processors with high-end digital-to-analog converters. Both the Room EQ and Auto Set-Up features can be disabled if required.

    For more information go to; http://www.audyssey.com/ and also;


  • DTS-ES Discrete/Matrix 6.1

    DTS-ES Extended Surround is a multi-channel digital signal format develpoed by Digital Theater Systems Inc. While offering high compatibility with the conventional DTS Digital Surround format, DTS-ES greatly improves the 360 degree surround impression and space expression thanks to further expanded surround signals. This format has been used professionally in movie theaters since 1999.

    In addition to the 5.1 surround channels, DTS-ES also offers the surround back channel for surround playback with a total of 6.1 channels. DTS-ES includes two signal formats with different surround signal recording methods, as DTS-ES Discrete 6.1 and DTS-ES Matrix 6.1.

    DTS-ES Discrete 6.1
    DTS-ES Discrete 6.1 is the newest recording format. With it, all 6.1 channels (including the SB channel) are recorded independently using a digital discrete system. The main feature of this format is that because the SL, SR and SB channels are fully independent, the sound can be designed with total freedom and it is possible to achieve a sense that the acoustic images are moving about freely among the background sounds surrounding the listener from 360 degrees. Though maximum performance is achieved when sound tracks recorded with this system are played using a DTS-ES decoder, when played with a conventional DTS decoder the SB channel signals are automatically
    down-mixed to the SL and SR channels, so none of the signal components are lost.

    DTS-ES Matrix 6.1
    With this format, the additional SB channel signals undergo matrix encoding and are input to the SL and SR channels beforehand. Upon playback they are decoded to the SL, SR and SB channels. The performance of the encoder used at the time of recording can be fully matched using a high precision digital matrix decoder developed by DTS, thereby achieving surround sound more faithful to the producer’s sound design aims than with conventional 5.1- or 6.1-channel systems. In addition, the bit stream format is 100% compatible with conventional DTS signals, so the effect of the Matrix 6.1 format can be achieved even with 5.1-channel signal sources. Of course it is also possible to play DTS-ES Matrix 6.1 encoded sources with a DTS 5.1-channel decoder.

  • DTS-HD

    DTS-HD (High Definition) is a progression of DTS for high performance audio supporting upto 8 channels with a resolution of 24-Bit and sampling of upto 192 kHz. The differences between the formats is as follows:

    DTS-HD High Resolution Audio
    This format works like DTS however it uses a more effective compression algorithm, offering greater compression, the result is an audio signal almost bit for bit to the master while requiring a smaller amount of data.

    DTS-HD Master Audio
    This format is completely lossless with only minimal compression. The resulting audio signal is bit-for-bit to the master giving you the optimum in audio quality.

    A/V-Receivers with this logo can decode both formats, BD- or HD-DVD-Players with this logo can either decode or output the DTS-HD signal via HDMI.