■THX Ultra2 Certified
7-channel High Power Amplifier
The AVC-A1SR features an equal power 7-channel amplifier section, with identical amplifier design on all 7 channels. The Front (L/R), Center, and Surround (L/R) channels are driven by 225 watts of power each, and the two Surround Back channels, used for 6.1-channel DTS-ES and DOLBY DIGITAL EX sources, are also each powered with 225 watts (all channels rated into 6 ohms).
High current, low impedance drive-capable discrete power transistors are used for each channel, and the high power output of 225 watts per channel (into 6 ohms) ensures that the speakers are driven with ample foundation to reproduce movie
and music soundtracks with superb fidelity and the widest
dynamic range.
The AVC-A1SR proudly bears the THX Ultra2 logo, certifying that it satisfies the newest certification
standards of Lucasfilm Ltd.,
governing performance, features, sound quality, power, stability into
low-impedance speaker loads, and ease of operation.
■Accurate Signal Transmission
from the Pre-amplifier Section
Parts suitable for high attenuation have been strictly selected for use in the volume circuit that controls the signal levels of all eight channels. Since a differential D/A configuration has also been adopted for each channel, the widest possible dynamic range is secured with mutual interference effectively suppressed across the entire frequency range. The pre-amp's gain is varied to match the output level,improving S/N in the range where the volume is often used. Highly accurate volume adjustment in variable steps of 0.5 dB in the range of -80 to +18 dB is possible as well.
| Differential | |
| Signal | Pre Output |
| Input |
| |
■High-quality Pure Audio Chassis Construction
By positioning the power transformer at the center of the unit, the AVC-A1SR is equipped with a chassis construction in which unwanted vibrations are suppressed and excess vented heat is minimized. The digital circuits have been placed in the lower center of the unit and are completely shielded in their own enclosure, and the power amp circuits are located on the left and right sides. In addition, the analog circuitry has been isolated from the video circuitry to completely eliminate any mutual interference. The total chassis design preserves the purity of the audio signal from input to output to give your home theater a clean yet powerful sound, alive with all the details of the original recording.
■Wide-Range Play Capability for DVD-Audio or SACD
■New DDSC-Digital Processor,
for High-quality Sound Reproduction
1. 24-bit, 192-kHz Analog-to-Digital Conversion
The AVC-A1SR is capable of 24-bit, 96-kHz or 192-kHz A/D conversion, improving S/N and dynamic range by approximately 10 dB. A/D conversion and DSP processing (*1) of external input signals (max. 8 channels) is also possible. The AVC-A1SR is thus able to perform bass management and delay processing on DVD-Audio signals. THX post processing is also possible with this DSP.
(*1) It is possible to select whether signals are to be processed by the DSP or output as an analog signal.
2. 24-bit, 192-kHz Digital Interface Receiver
The AVC-A1SR employs a total of four 24-bit, 192-kHz digital interface receivers, one for every two channels, enabling multi-channel digital input through Denon Digital Link or external digital input to perform at optimum potential.
3. New SHARC Dual 32-bit Floating Point DSPs
The AVC-A1SR uses a dual configuration of new HammerHead SHARC 21161 32-bit floating point DSPs from Analog Devices.
4. 24-bit, 192-kHz All-channels Differential-mode D/A Conversion
For optimum fidelity and transparency, the AVC-A1SR features the latest Burr-Brown PCM-1738E high resolution 24-bit, 192 kHz DACs, in an eight-channel, differential configuration (2-DAC channels per each audio channel). These DACs satisfy DSD specifications.
■DENON’s Latest Surround Technology Faithfully Recreates the Surround
Sound Produced at the Dubbing Stage.
DTS-ES Discrete 6.1 / DTS-ES Matrix 6.1 / DTS NEO:6 / DTS 96/24 Dolby Digital / Dolby Digital EX / Dolby Pro Logic II
THX Surround EX / THX Cinema / THX Ultra2 Cinema / THX MusicMode
■DTS-ES Discrete 6.1 + THX Post Processing
By adding THX Post Processing to the localized sound and spatial expression of DTS-ES Discrete 6.1, your listening room is almost completely transformed into a full-featured cinema.
■DTS NEO:6
DTS NEO:6 lets you enjoy 2-channel analog, PCM, and Dolby Digital
2-channel sources in full 6.1-channel surround sound.
■DTS 96/24 5.1 Decoding for DVD-Video
High-quality 96-kHz, 24-bit (96/24) sound playback from ordinary DVD-Video recordings is limited to only two channels and there are also limitations on the picture. DVD-Video recorded in DTS 96/24, however, allows high-quality 5.1-channel sound playback in full-quality, full-motion video.
■Dolby Pro Logic II
With the AVC-A1SR, you can use Dolby Pro Logic II to do more than just enjoy your 2-channel analog, PCM, and Dolby Digital 2-channel sources in surround sound ambiance. You can also add the soundfield effects of THX Post Processing to Dolby Pro Logic II in Movie mode(*2) to brilliantly enhance the excitement of 2-channel A/V sources.
(*2) On Denon A/V amplifiers, this Movie mode is displayed as “MODE CINEMA”.
■Dolby Headphone
Since sound from a headphone enters the ears directly, it can cause fatigue during extended listening sessions. Dolby Headphone replicates the effects of sound from speakers in a room by localizing the sound source at the front or the side as though the listener were enjoying 3D sound at a movie theater. Dolby Headphone is effective not only with Dolby Digital or Dolby Pro Logic but with CD and other 2-channel sources as well. The AVC-A1SR also lets you record signals encoded with Dolby Headphone to other recorders so that you can enjoy the effects of Dolby Headphone with a portable MD player or other device. (This is possible with both analog and digital recordings.)
■5 Channel & 7 Channel Stereo Modes
■Dual Surround Mode Speaker Selection
■Adjustable Cross-Over Switching
The AVC-A1SR supports subwoofer cross-over switching with a choice of 5 cross-over frequencies: 40, 60, 80, 100, and 120 Hz. This lets you more accurately match the performance characteristics of the subwoofer to the main speaker system.
■DENON Digital Link
High-grade LPCM 24-bit/96-kHz for 6-channel or 24-bit/192-kHz for 2-channel(*3) digital input is possible when the AVC-A1SR is connected via a shielded twisted pair (STP) cable to a Denon DVD player that supports Denon Digital Link. 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.
(*3) If a 24-bit, 192-kHz sound source is copyright protected, the DVD player may convert the digital output.
■External Digital Input
For future system expansion, the AVC-A1SR provides external digital inputs that support multi-channel (6/8-channel PCM) inputs from an external unit.
Multi-channel digital signal input is possible using a maximum of 4 sets of coaxial digital inputs.
■Pure Direct Mode, to Deliver Pure Audio Quality
■AL24 Processing Plus
■High-quality Component Video
In/Out Terminals (100-MHz Bandwidth)
