ONKYO A-DS474
¥ 49,800 (released on June 1, 1997)
Commentary
A 5.1 chAV amplifier equipped with a Dolby digital decoder, developed by taking over the technology of high-end machines.
Equipped with Dolby Digital Decoder and Dolby Pro Logic Decoder.
Also, by installing a 5.1 ch input terminal, it is compatible with DTS, etc.
Three surround modes are available for stereo sound sources : HALL, LIVE, and ARENA.
It is equipped with 2 types of digital input terminals which are coaxial with optical.
The DSP section uses Motorola's 24-bit DSP chip.
By adopting a large power transformer with a heat-resistant design, stable power supply has been achieved.
Discrete configuration is used for the power amplifier section.
Low NFB circuit is mounted.
We also aim to stabilize the ground potential, which is the standard for music signals.
We aim to improve the HICC (High Instantaneous Current Capability) for accurately driving the speakers under various conditions.
It is equipped with a large aluminum extruded heat sink separated for front and center & surround.
Equipped with an FM/AM tuner with preset and auto-tuning functions.
It comes with a wireless remote controller that can operate Onkyo CD player and cassette deck.
Model Rating
Type | AV amplifier |
<Audio section> | |
Rated output (6 Ω, 1 kHz, THD0.1%) |
Front : 70W + 70W Center : 70W Surround : 70W + 70W |
Maximum Practical Output (6 Ω, EIAJ) | Front : 100W + 100W Center : 100W Surround : 100W + 100W |
Total harmonic distortion factor | 0.1% (at rated output) |
Cross modulation distortion factor | 0.08% (at rated output) |
Dynamic Power | 150W + 150W (front, 4 ohm) 120W + 120W (front, 6 ohm) |
Damping factor | 60 (Front, 8 Ω) |
Input Sensitivity / Impedance | Line : 200mV/50k Ω Phono MM : 2.5mV/50k Ω Multi-channel input : 200mV/50k Ω (excluding Subwoofer) Subwoofer input : 36mV/50k Ω |
Output Level / Impedance | Rec out Tape/Video2 : 200mV/2.2k Ω Subwoofer pre out : 1V/2.2k Ω |
Frequency characteristic | Line input : 20 Hz ~ 30 kHz ± 1 dB (in stereo) |
Signal-to-noise ratio (IHF-A) | Line:100dB Phono:80dB |
Tone Control Maximum Change | Bass : ± 10 dB (50 Hz) Treble : ± 10 dB (10 kHz) |
Phono RIAA deviation | 20 Hz to 20 kHz ± 0.8 dB |
<Video Part> | |
I/O Level / Impedance | 1Vp-p/75 Ω (Composite Signal) |
Tuner Section | |
Practical sensitivity of FM | Mono : 1.0 μ V/11.2 dBf Stereo : 2.0 μ V/17.2 dBf |
Signal-to-noise ratio | FM mono:76dB FM stereo:70dB |
Harmonic distortion factor | FM mono:0.15% FM stereo:0.25% |
<General> | |
Image input | Composite connectors : Route 3 (DVDs, Video1-2) |
Video output | Composite connector : 2 channels (Video2, Monitor out) |
Voice input | Digital terminal : 2 systems (optical, coaxial) Analog connector : Route 6 (DVDs, Video1, 2, Phono, CDs, Tape) 5.1 ch analog jacks : Front L/R, Center, Surround L/R, Subwoofer |
Audio output | Analog connector : 2 channels (Video2, Tape) Subwoofer pre-output : 1 system Speaker output : front L/R2, center, surround L/R Headphone output : 1 system |
Power consumption | 230W (Electrical Appliance and Material Control Law Standard) |
External dimensions | Width 435x Height 150x Depth 324 mm |
Weight | 10.7kg |
Attachment | Wireless Remote Control |