Audio Database

Image of the Integra A-V901PRO
Commentary

This is the first AV amplifier in the Integra series developed by combining ONKYO's audio technology.

The surround processor features a newly developed Balanced Audio Dolby ProLogic processor.
This circuit employs two sets of excellent analog decoder circuits that have performance exceeding that of digital decoders even when used alone. These two circuits operate in opposite phases to each other and output L (left) / C (center) / R (right) / S (surround) through a differential amplifier to cancel non-linear distortion and residual noise.
This realizes the world's highest level of pure and clear sound quality in surround sound reproduction with logic operation, and improves various characteristics.

It is equipped with an Ambisonic surround decoder to reproduce the sound of "Ambisonic Recording Method", a unique one point recording method developed by Nimbus Records Records UK, in the listening room as it is.
It is equipped with a UHJ mode for CDs with ambisonic recording, and a STEREO mode for ordinary stereo recording software to provide ambisonic surround effects.

It combines a logic decoder with DSP (digital signal processing), and is equipped with a theater mode function that adds multi-surround speaker effect and reverberation effect.
A multi-surround speaker effect is achieved by simulating sound that is played from a surround speaker installed in a movie theater at different distances and directions, and distributing it appropriately to two front, one center, and two rear speakers. It also simulates a space of different sizes from a mini theater to a large theater, and adds an appropriate reverberation effect to the speakers for realization in a listening room.

It is equipped with a number of surround modes, such as halls and live concerts. In these surround modes, you can set various sound field parameters. You can adjust the room size to adjust the size of the hall, the reverb to adjust the decay time of the reverberation, and the effect level to adjust the level of sound effects. You can make detailed adjustments according to the conditions of the listening room and your preference.

The theater mode is equipped with DSS (Digital Simulated Super Woofer Processing) and creates a super-low sound sensation in the listening room.

In order to realize simple operation, it is equipped with AI full automatic program system, and certain operation is automatically performed by pressing the Multi Preset key.
There are a total of five Multi Preset keys, and you can call up to ten patterns : one press to call up to one five patterns, and two presses to call up to six ten patterns.

Equipped with full mode Dolby Pro Logic with auto input balance circuit.

Equipped with wide aspect screen automatic support function.

Each block is designed separately and independently, and the power amplifier section consists of 5 amplifiers of discrete design.

It is equipped with video circuits with transmission characteristics equivalent to 1,600 units.

It features independent 3-band tone control for all channels, three test tones for adjusting the speaker level, a Rec Standby mode with voice recording, and A/V separation for audio and video sources.

All channel pre-out jacks and four channel discrete inputs for HDTV are included.

The included learning remote control includes a learning interface function.
For example, when the remote control is used to turn on the video, the amplifier automatically turns on, the input selector switches to VIDEO-1, and so on. The learning interface function learns and automatically executes operations that are closely related to a certain operation by remembering the user's habits.
In this way, it is possible to easily control the operation of multiple AV devices by the learning interface function that learns and executes the auto-startup function, auto-shutdown function, and auto-input selector function in association with each other.

Model Rating
Type AV amplifier
<Audio section>
Rated Output (20 Hz ~ 20 kHz, 6 Ω) Front:100W+100W
Center:100W
Rear:45W+45W
Total harmonic distortion factor (VDP → SP Out, 20 Hz to 20 kHz) 0.015% (8 Ω at 10W output)
Intermodulation distortion factor (VDP → SP Out) 0.05% (8 Ω at rated output)
Power Band Wiz (8 Ω at 1/2 Rated Output) 5 Hz to 100 kHz
Damping factor (1 kHz, 8 Ω, L/R) 90
Frequency characteristic 20 Hz ~ 100 kHz -3dB (VDP → SP Out)
Signal-to-noise ratio VDP, Line : 105 dB
Input Sensitivity / Impedance VDP, Line : 300mV/47k Ω
Rated output voltage / impedance VDP-Rec, Tape-Rec : 300mV/2.2k Ω
Pre Out : 1V/600 Ω
Tone Control Maximum Change Bass : ± 12 dB (20 Hz)
Mid : ± 12 dB (850 Hz)
Treble : ± 12 dB (20 kHz)
<Video Part>
Image input sensitivity / impedance
Video(Composite): 1Vp-p/75 Ω
S-Video Y Signal : 1Vp-p/75 Ω
C Signal : 0.286Vp-p/75 Ω
Video output voltage / impedance
Video(Composite): 1Vp-p/75 Ω
S-Video Y Signal : 1Vp-p/75 Ω
C Signal : 0.286Vp-p/75 Ω
Frequency characteristic Composite, S-Video (Y-signal) : 5 hz to 20 mhz -3dB
<General>
Power supply voltage 100 VAC, 50Hz/60Hz
Power consumption (Electrical Appliance and Material Control Law) 280W
AC outlet Power switch interlock : Route 3, total 200W
External dimensions Width 471x Height 170x Depth 423 mm
Weight 18.3kg
Attachment Remote control