AV Surround Pre-Amplifier

AVP-A1HD

Power Amplifier

POA-A1HD

Already 12 years have passed since 1996 when Dolby Digital + THX 5.1 was released and Denon became the first to support it in its AVP-A1 and POA-T3/T2 separate amps. Denon has continued to develop A/V surround amplifiers and receivers based on the basic design concept of reproducing content with total fidelity to the original intent of the producer. With the advent of new high-definition formats and high-definition content, Denon's efforts have resulted in the development of an A/V surround pre-amplifier and a 10-channel power amplifier capable of faithfully reproducing high-definition video and high-definition audio and delivering top performance. As A/V Centre devices with a diverse range of features, the AVP-A1HD and POA-A1HD are packed with all of Denon's best digital and analog technologies.
Reference Next Generation HD Control Centre featuring Advanced Connectivity, Wi-Fi Network Audio Streaming and Finest Construction and Craftsmanship to bring you the Ultimate A/V Experience.
State-of-the-art Denon Solutions for Maximising Content Quality
All new circuit layouts that shorten audio and video signal paths for best picture and sound
The simple and straight design concept has been thoroughly implemented in the signal paths to contribute to immaculately clean audio and video playback. Signal paths are as short as possible to keep signal degradation in the audio and video circuitry to an absolute minimum.
Pre-amp, amplifier, and volume control in discrete configuration as a single component
The AVP houses a low-impedance drive pre-amp, amplifier, and volume control unit in a discrete configuration as a single component. Since circuits configured of op-amps or similar devices used in general amplifiers do not have drive capability to withstand low impedance, distortion occurs under large current. This discretely configured pre-amp is capable of delivering distortion-free output thanks to its class-A operation capability up to low impedance. This circuit also requires a small number of elements, allowing output of pure audio signals of high S/N ratios and low distortion.
Fully separated Audio, Video, Pre-Amplifiers and Power Supplies allow for a cleaner and clearer signal path
Dedicated transformers have been allotted for each block to prevent unwanted noise and produce a clean power supply circuit. One large toroidal transformer is used for the XLR output circuit and a second large toroidal transformer powers the analog audio circuit. Two transformers are used for the analog video circuitry; dedicated power supplies are provided for the display, CPU, digital audio circuitry, and digital video circuitry; and two are for the pre-amp section. The combination of these transformers, 50-ampere bridged diodes, four 10,000 microfarad block capacitors, and an ultra-robust power supply provides a stable source of power.

Direct Mechanical Ground

Vibration-resistant construction has been reviewed to thoroughly suppress the adverse influences of vibration on sound quality. The power transformers, a source of vibration, have been securely mounted on the highly rigid bottom chassis. Directmounting of cast-iron feet to the radiator in near proximity to each other serves to suppress mutual vibration with the power transformers and other sources of vibration. And careful mounting and placement of various parts has effectively eliminated the influences of external and internal vibration. This is all part of Denon's uncompromising design for impeccable sound quality.

Discrete Devices for ultimate performance in each circuit block (D.D.S.C.-HD)
The great appeal of a home theatre is to be surrounded by dynamic, realistic sound and stunningly beautiful video images. In this age of high-quality 1080p video and high-definition audio, the core of Denon A/V surround sound technology has been the Dynamic Discrete Surround Circuit (D.D.S.C.). Now, Denon has developed the D.D.S.C.-HD circuit so that high-quality HD audio performance is on par with the high quality of video images. This new circuit masterfully embodies Denon's foremost design concept for A/V surround amps which is to reproduce content with total fidelity to the original intent of the producer. The D.D.S.C.-HD reproduces with ideal quality the sound of the latest high-grade HD audio sources.
Advanced AL24 processing provides more dynamic range
In AL24 Processing, the internal processing circuit generates 8 lower bits of data which are added to the original 16 higher bits for 24-bit quality output. The circuit then interpolates the digital data so that it as closely as possible reproduces the smoothness of an analog waveform and allows recordings on CD or other digital media to sound the way they should in the natural world. Figure 1 shows the playback sine wave of conventional 16-bit data and how an audio signal that is only output in steps of one LSB is smoothed as if it were 24-bit data. Of course, these differences are also clearly audible: distortion that causes discomfort is reduced and the sound enjoys a superior S/N, free of noise. In addition, Advanced AL24 Processing uses proprietary high-speed signal detection technology and high-speed processing technology to perform high-sampling up conversion on the time axis and produce a sine wave that is even closer to that of an analog signal. Besides expanding the conventional number of bits, Advanced AL24 Processing uses high-speed
Discrete Devices for ultimate performance in each circuit block Dolby TrueHD and DTS-HD Master Audio decoders Three All 32-bit floating point DSPs Audio DACs in dual differential mode (1 per audio channel) on all output channels Master clock design for more accurate processing and less jitter noise Audio ADCs in differential mode (2 per audio channel) on all analog input channels DSP processing of EXT IN analog audio input is possible. Denon surround modes can also be enjoyed with external input audio signals.
arithmetic processing algorithms developed by Denon to observe and analyse sample groups of the original data and make interpolations associated with up sampling and frequency range expansion. Figure 2 shows the features of arithmetic processing. If we observe the sine wave of a relatively large attack signal assuming an actual music signal, we can easily see how different it is from conventional processing. While considerable ringing occurs with general FIR filters both before and after the attack signal, there is little ringing with Advanced AL24 Processing and we can see how well suited this technology is for the reproducibility of sine waves. Since greater efficiency in processing and higher processing capacity allow data samples to be processed in one stage across a wide range, signals can also be interpolated with greater accuracy compared to methods such as multi-stage configurations that use conventional digital filters. In addition, the over sampling rate has been boosted to 16fs from 8fs to facilitate the expansion of data volume that contains a more detailed, natural sound. The sonic result for the audiophile is the ability to enjoy musical recordings with the full ambience of the concert hall replete with its spaciousness and the movements of musicians.

Audio Input HDMI

192kHz/24bit DAC

Pre output

XLR RCA XLR RCA XLR RCA XLR RCA XLR RCA XLR RCA XLR RCA XLR RCA XLR RCA XLR RCA XLR RCA XLR RCA

HDMI Rx DIT

FRONT L FRONT R Center Subwoofer Surround LA Surround RA Surround LB Surround RB Surround Back L Surround Back R Subwoofer 2 Subwoofer 3
Conventional system AL24 Processing

32bit Floating point

DAC DAC DAC

DENON LINK

Figure kHz,-90 dB sine waves (CD playback)
Advanced AL24 Multichannel Processing with PLL
DAC DAC DAC DAC DAC DAC DAC DAC
DIGITAL IN ZONE4 DIGITAL OUT ZONE2 DIGITAL OUT

SELECTOR

Digital Interface Receiver
Compared by impulse response(24-bit,96kHz)

ADC ADC

8ch EXT. IN

Conventional system

AL24 Processing
Figure 2 Playback sine waves with attack sounds

DAC ZONE2 ANALOG

Zone2 L Zone2 R Zone3 L Zone3 R
AVP-A1HD AUDIO BLOCK DIAGRAM

Master clock design

Various techniques have been adopted to boost the precision of the master clock and ensure meticulous accuracy in D/A conversion. These include stabilizing the power supply and ground potential, and minimizing the length of wires. In addition, by regenerating the master clock with a high-accuracy phase-locked loop (PLL) near the D/A converter, residual jitter is minimized, enabling playback of high-quality sound with clear sound images and contours.
Denon's High Picture Quality Circuitry, to enhance enjoyment of existing DVDs
This circuitry employs an I/P (Interlaced/Progressive) converter - also vital for audio circuitry - and a Realta sxT2 scaler that converts the SD video images of DVD to high-definition 1080p images. High conversion performance is made possible by 10-bit processing, and motion detection is dramatically improved as well. Regularity at the pixel level not only for the 3:2 pattern of film sources but also for other patterns is accurately detected at high speed for highly precise I/P conversion. Even when a source contains both Video mode and Film mode material, each mode is accurately detected and processed at high speed, enabling high-quality Progressive playback of a variety of DVD discs. The Realta sxT2 also functions as a high-performance scaler that makes 1080p HDMI output possible. 10-bit processing enables high-precision scaling, and the most appropriate conversion for the output resolution is performed even when video signals recorded on a DVD using colour difference signals are output in RGB format. As a component dedicated to playback, the sole job of the AVP-A1HD is to ensure that A/V enthusiasts can enjoy a rich variety of DVDs in superior picture quality.
Connectivity & Future-ready Expandability
Network Audio and Photo Streaming
The AVP-A1HD includes a wireless LAN function. A music server such as Windows Media Player ver.11 can be used via a LAN connection to play music files stored on a PC. Supported audio file formats are MP3, WAV (linear PCM), AAC (DRM not supported), WMA, and FLAC. (The AVP-A1HD's music server function complies with Digital Living Network Alliance [DLNA] specifications.)

Ease-of-Use

New user interface for easy operation, setup and digital media browsing
The newly-developed graphical user interface (GUI) supports displays in multiple languages to vastly improve operating ease and use.

Denon LINK 3rd

Denon LINK is a jitterless digital interface that uses high-speed transmission devices for balanced transmission to achieve high-speed, high-grade real-time digital transmission with negligible signal degradation. When connected to a DVD player, Denon LINK enables direct digital input of PCM 24-bit/192-kHz digital signals and other high-speed, high-sound-quality multi-channel signals from such sources as DVD-Audio and Super Audio CD.

Internet Radio

You can access a list of over 7,000 radio stations via "vTuner" service, and enjoy your favourite music channels without a PC.
GUI-assisted operation even during 1080p output from HDMI
PC room Router Theatre room
Dual HDMI outputs enabling simultaneous output to video projector and flat panel
There are 2 HDMI outputs that can be used simultaneously. It is possible, for instance, to connect one to a video projector and the other to a flat panel display.
To preserve original sound quality for the room's acoustics at any volume level, Audyssey Dynamic EQ loudness correction technology
Dynamic EQ corrects frequency responses at any volume level while considering such aspects as the measured characteristics of the room, volume of the source, and the characteristics of human ears. Even when the volume is turned down, it is possible not to sense weakness in sound or insufficient dynamism.

Video Input HDMI RCVR

Y P B/CB P R /CR Y
Monitor I/P Scaler HDMI XMTR

P B/CB P R /CR

2-line fluorescent display on front panel
Current status, such as the input source or audio format, is displayed in two lines. It is also possible to check the name of the album or music track of the memory audio or other items without viewing the TV screen. The 2-line display also makes it possible to easily change settings without the GUI and TV screen.

Refined calibration technology to improve an acoustical condition of any room.
New tower type microphone is used to measure the characteristics of the speakers and the listening room. The data is analysed by a high-performance DSP, and the Auto Set-up function automatically makes initial settings for the speakers. The newly improved MultiEQ XT technology then processes acoustic data obtained from up to 8 listening positions, and the Room EQ (Equalizer) function corrects the frequency response to achieve the optimum listening environment for the room. -New filtering ALFC (Adaptive Low Frequency Correction) for higher resolution processing in the low frequency band

Component(RCA)

Video Decoder S-Video

Video Encoder S-Video

Web setup, save and load all settings via Ethernet Compressed Audio Restorer to enhance digital music files
Compressed Audio Restorer is Denon original audio technology that interpolates audio information that has been lost during suppression of audio files down Browser software on a PC can be used via network connection to set up or control the AVP-A1HD.

Composite

loaded from the Internet or for digital audio players, and plays the powerful low range and the delicate details in the high range of these files without sacrificing the overall balance of sound.
Remote control unit with GLOW-KEY buttons for easy operation in the dark Sub-Remote controller
The AVP-A1HD comes with a sub-remote controller in addition to the main remote controller. Since the sub-remote controller has buttons that operate frequently-used functions, this controller can be used for simple operations. The subremote controller can also be used in multi-zone setups, to operate the AVP-A1HD from another room.
*Down-conversion from component video to composite or S-video occurs only with 480i and 576i signals.
The following 6 basic settings are automatically made for the speakers:
1. Speaker connection 2. Speaker size 4. Speaker distance 3. Speaker level 5. Speaker phase 6. Cross-over frequency
Digital Noise Reduction, to optimise effects for both SD and HD content
This DNR technology optimises the effects of high-definition Blu-ray video as well as standard DVD discs.

Multi-Zone Capabilities

- Three analog and one digital, four zone multi-source capability - Zone 2 OSD with text, Album art is also available

Room EQ

By measuring multiple listening positions, up to a maximum of 8, frequency response for the overall listening area is automatically corrected. During Auto Setup, minute corrections are made in each speaker by an FIR filter which in theory has no phase variation. There are three correction patterns: Audyssey, Audyssey Byp. L/R, and Audyssey Flat. Manual setting is also possible using a 9-band graphic equalizer. During manual setting, it is possible to make settings while listening to your favourite music. Since 4 correction patterns including manual setting can be assigned to each surround mode, corrections for the overall listening area can easily be set for each source.

Audyssey: Corrects the frequency responses of all speakers to optimum levels. Audyssey Byp. L/R: Corrects the frequency responses of all speakers except the front L/R speakers. Audyssey Flat: Corrects frequency responses so that they are all uniform. Manual: Manually adjusted frequency responses are applied. Off: Room EQ is not used.
Denon Pixel Image Correction, for more natural correction of curved lines
The AVP-A1HD is endowed with Denon Pixel Image Correction enhancer

Zone 2

Sub-remote controller functions: - Input source switching - Volume adjustment

FL SW C FR

technology to perform high-definition video image correction. 10-bit processing is used to detect and correct curved lines with greater precision. The new enhancement processing algorithm considers the effects of peripheral pixels in addition to the target pixels, sampling and analysing video data of a total of 9 pixels. Pixels in horizontal, vertical, and diagonal directions are detected and processed in detail. Brightness and Colour signals are also processed by the same algorithm which then suppresses ringing noise that easily occurs during enhancement and performs other processes to effectively produce a vivid, natural picture.

FL C SW FR SL

- iPod operation - Direct play of NET/USB - Operation of GUI menus and Zone 2 on-screen displays - Power ON/OFF for individual

Main Zone

TV Digital

AV Receiver

BD Player / Transport

Zone 3

Detailed picture quality adjustability
Besides the Denon Pixel Image Correction functions, picture quality can be adjusted over a wide range of elements including not only Contrast and Sharpness but also White level, Chroma level, Noise Reduction settings, and Gamma.

FR Power Amplier

Zone 4
SL SR SBL SBR FL SW C Digital Video Audio SL SR AV Receiver FR
HDMI (ver. 1.3a supporting Deep Colour (30/36-bit), x.v.Color, High-Bit-Rate Audio input)
The HDMI input/output ports permit digital transmission of video and audio signals over a single HDMI cable. Since the latest version of this interface is provided, the AVP-A1HD supports a variety of specifications, such as Deep Colour (30/36-bit), "x.v.Color" Lip Sync, High-Bit-Rate Audio, and HDMI Control.

Other Features

THX Ultra2 certified Pure Direct mode, for enjoying high-quality pure audio
Pure Direct mode allows listeners to enjoy the pure, impeccable high sound quality of music. When Pure Direct mode is activated, the fluorescent display is turned off and unused circuitry automatically shuts down. It is also possible to turn off power to the video and digital circuits to further improve sound quality.

Input / Output terminals

HDMI Component S-Video Composite XLR Analog audio EXT. In Digital OPT Digital COAX Denon Link 3rd (1: BNC) 7.1ch (2: BNC) main monitor

Zone 2 monitor

Auto Surround Mode, to automatically remember surround modes for 4 input signal formats
Surround modes or surround parameters can be automatically stored for each of 4 types of input signals: 2-channel analog/PCM, 2-channel digital, 5.1-channel digital, and multi-channel. If the type of input signal is changed, the optimum surround mode is thus automatically set for that signal.

OUT HDMI monitor

Component S-Video Composite

2 (1: BNC) 1/1/1 1

9.3 ch XLR (Balanced) 9.3 ch RCA (unbalanced)

Monitor / Zone 2

Supports connection of up to 3 subwoofers
When as many as 3 subwoofers are connected, it is possible to select MIX or L/R channels. THX-compliant modes can also be selected.
Zone 3 Analog preout Analog preout Analog audio Digital optical REC

Zone 2 / Zone 3

Night mode for low-volume listening, and Dolby Headphone for enjoying surround sound with headphones 1080/24p pass through (via HDMI) Analog video to HDMI scaling up to 1080p 12-bit/216-MHz video encoder and decoder with NSV iPod audio, photo and video playback (optional ASD-1R/3N/3W)
A separately-sold Denon control dock for the iPod can be connected to listen to music or view video stored on the iPod.

Others

3 1/1 1

REC Zone 2

REC / Zone 4
Trigger +12 V, 250 mA RS-232C Control link Remote IN/OUT Ethernet Wi-Fi (WLAN Antenna) USB Dock control Setup mic

1 IN 1 / OUT 1 1

Mass storage support USB for audio and photo playback (MTP compatible) Album art support (iPod/Network/USB) Title text (iPod/Network/USB)

Specifications

Multi language support (EN, DE, FR, IT, ES, NE, SV, JP) Pre-amplifier Section Dual component outputs for main zone BNC connectors for component input/output Supports HDMI Control (Consumer Electronics Control)
When connected via HDMI cable to a TV or player that supports HDMI Control, it is possible to use the TV's remote control unit to perform such operations as turn power on or off, switch functions, or adjust the volume.
(Note: This may not work with some devices or settings.)
Input sensitivity/impedance PHONO(MM) Audio inputs Output level/Load impedance Audio outputs RCA (unbalanced) 1.2 V XLR (balanced) 2.4 V 2.5 mV RCA (unbalanced) 200 mV/47 kohms XLR (balanced) 400 mV/100 kohms

General

Input sensitivity/impedance Power supply Power consumption AC 230 V, 50 Hz 150 W (Standby: 0.3 W )

Dimensions W x H x D 434 x 214 x 485 mm
IR Remote in/out ports +12V, 250mA trigger x 4 outputs RS-232C control x 2 Optional RC-7000CI/7001RCI 2-way control ready
When combined with the separately-sold RC-7000CI RF remote controller or RC-7001RCI remote receiver, bi-directional communication is possible between the AVP-A1HD and the RC-7000CI. It is also possible to select files for playback from a list displayed on the remote controller's screen.

Weight

27.5 kg
*Design and specifications are subject to change without notice. *Dolby and the double-D symbol are registered trademarks of Dolby Laboratories. *DTS is a registered trademark & the DTS logos and symbol are trademarks of DTS, Inc. *HDMI, the HDMI logo and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC. *"x.v.Color" is trademark of Sony Corporation. *HDCD ,High Definition Compatible Digital and Microsoft are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries. *Audyssey MultEQ and Audyssey Dynamic EQ are trademarks of Audyssey Laboratories, Inc. *NSV is a registered trademark of Analog Devices, Inc. *Microsoft, Windows Media, Windows Vista, and Windows are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries. *THX is a trademark of THX Ltd. THX may be registered in some jurisdiction. All rights reserved. Surround EX is a trademark of Dolby Laboratories. Used with permission. *The Realta HQV is a registered trademark of Silicon Optix Inc. *iPod is a trademark of Apple Inc., registered in the U.S. and other countries.
Reference 150 Watts x 10 channel Fully Configurable Power Amplifier
4 Ohms Guaranteed Mono Block Construction Amplifiers
The POA-A1HD is a 10-channel high-output power amplifier with 300 watts (4 ohm) of uniform-quality current for each channel. To ensure maximum performance as an audio amplifier, this model has been designed with a discrete monaural configuration where each channel is endowed with its own parts and radiator. Interference between channels has been eliminated to produce highly pure sound with a realistic sound space.
New amplifier circuit that shortens audio signal paths for the best audio Direct Mechanical Ground to minimize mechanical vibration from transformer and radiators 8 individual transformers to supply power to each discrete circuit 4 main power transformers to drive 10 ch power amplifiers with
150 W x 10 channels (8 ohms), 300 W (4 ohms) 300 W Bridgeable derive (8 ohms), 500 W (4 ohms) 10-channel power amp capable of driving low-impedance speakers THX Ultra2 certified Power Amplifier Fully separated construction for each 10 channels for all same audio quality Mono block concept to amplify with best performance
separated coil winding for pure audio playback

The main power unit for the power amp is configured of four large transformers dedicated to the power amp section, large-capacity block capacitors, and large-capacity rectifying diodes, to provide a stable supply of current from the main power supply block. This highly reliable current allows listeners to freely enjoy high-quality sound even during dynamic playback of surround sound or multi-channel sources. The power unit also has two independent pairs of large transformers, one for each stereo channel, and each channel is independently configured from a secondary coil on each transformer to suppress interference between circuits and ensure superior sound quality.
High current diodes and capacitors to drive bridged speakers Multi-Zone Separate winding in power circuit for each channel Capabilities
All channels of power amp can be assigned to various locations
The AVP-A1HD with 10 pre-amp channels is equipped with a power amp assignment function capable of taking efficient advantage of the POA-A1HD's power amp to support a variety of situations in the listening environment. Since the 10 speaker terminals can be freely assigned to any channel, the combination of one AVP-A1HD and a POA-A1HD permits the enjoyment of home theatre entertainment in a variety of environments. The front channels can also be used as a bi-amp, or as a bridged connection for higher power output through a single channel. You could also purchase two POA-A1HD power amps to bridge-connect 10 output channels that would let you enjoy incredible dynamism on the level of a movie theatre.
One example is given below: 1. Serious dynamism of a 9.1(+0.2)-channel surround system for one room. 2. 5.1-channel second zone theatre: Enjoy 5.1-channel theatre environments in two rooms. 3. Multi-zone system: Divide 10 channels of output to make a 7.1-channel theatre for the main room, a 2.1-channel environment for a second room, and a monaural environment for a small third room. 4. Bi-amp system: In a 7.1-channel theatre environment, bi-wire-connect two front speakers (L/R) and a centre speaker to give a big boost to playback quality from the front.

ZONE 1

Case 1 9ch Speaker Setting by Normal Connection Total 300 W

(4 ohms)

C (AMP2) FL

(AMP1)

(AMP3)

(AMP9)

(AMP4)

(AMP8)

(AMP5)

AVP-A1HD POA-A1HD

(AMP7)

(AMP6)

ZONE 2
Case 2 9ch Speaker Setting by Bridgeable Connection Total 500 W

2. ch 1

POA-A1HD AVP-A1HD POA-A1HD

ZONE 3

C (AMP3+4) FR

(AMP1+2)

(AMP5+6)

(AMP10)

Control Link allowing POA-A1HD settings to be made via the AVP-A1HD remote control unit (includes Control Link Cable: 3 m)
With the POA-A1HD, it is possible to switch among XLR, RCA, and OFF for

IN OUT

XLR RCA Speaker A L/R out Speaker B L/R out

Trigger +12 V, 250 mA

IN 1 / OUT 1
the input signals and among Bi-Amp, NORMAL, and BRIDGE for the types of output, for each channel. The POA-A1HD is also equipped with Control Link to enable communication with the AVP-A1HD. When connected with a Control Link Cable, these settings can be made using the remote control unit that comes with the AVP-A1HD. (When the POA-A1HD is used on its own, switches on the rear panel are used to change the settings.)

RS-232C Control link

VU meters available of any channel Power Amplifier Section
Rated output 150 W (8 ohms) 300 W (4 ohms) 300 W (8 ohms) Bridge Connection 500 W (4 ohms) Bridge Connection
RCA and XLR input for each channel Bi-Amp / Bridge mode select
Bridged or bi-amp connections are possible by setting a switch on the rear panel that will enable the connection of a 2-channel unit to a single-channel input. Settings are made individually for each channel so that the front and centre channels can be bridged and the surround and back surround channels can be used singly. During linked control from the AVP-A1HD, the connection method can be selected from the AVP-A1HD's remote controller.
Power supply Power consumption Dimensions (W x H x D) Weight AC 230 V, 50 Hz 1,300 W (Standby: 0.3 W ) 434 x 281 x 530 mm 60 kg
*Design and specifications are subject to change without notice. *THX is a trademark of THX Ltd. THX may be registered in some jurisdiction. All rights reserved.
Gold plated wide pitch speaker terminal Trigger input RS-232C