Onkyo A-9070 Audiophile Integrated Amplifier in its sophisticated design deliver powerful and clear, High-quality audio with circuitry that dampens distortion caused by super-high frequencies. The A-9070 incorporates closed ground-loop circuits and vibration-damping construction collaborating towards pure sound achievement with power ready capacitors.
Onkyo A-9070 Audiophile Integrated Amplifier, New DIDRC (Dynamic Intermodulation Distortion Reduction Circuitry) dampens super high-frequency distortion. Closed ground-loop circuits, HICC (High Instantaneous-Current Capability), and vibration-damping construction combine to produce a startlingly pure sound across a wide dynamic range. The unit's four 15,000 µF capacitors keep plenty of power at the ready. Efficient parallel push-pull amplification paired with three-stage inverted Darlington circuitry works at reducing distortion to almost nil. Separate Wolfson® 192 kHz/24-bit DACs for both left and right channels improve performance. The unit is also equipped with 192 kHz/24-bit HD audio playback to handle modern formats. Four discrete amplifier modesintegrated amp, power amp, pre-amp, and split pre-amp/power ampoffer flexibility when integrating other hi-fi components. Details like an independent headphone amplifier, a phonograph equalizer, three digital audio inputs, four analog inputs, and gold-plated audio terminals/speaker posts speak of the highest build quality. The superb craftsmanship, technological refinement, and attention to detail invested in the A-9070 make it worthy of serious consideration for those in the market for top-shelf hi-fi gear.
Parallel Push-Pull Amplification Design with Three-Stage Inverted Darlington Circuitry
With parallel “push-pull” amplification, the amplifier’s transistors alternately “push” and “pull” the current. In pairs, one output device (a transistor) will amplify the positive half of the waveform, while another output device amplifies the negative. Push-pull amplification is highly efficient but can be affected by occasional instances of distortion. This is where the three-stage inverted Darlington circuitry comes in. Three-stage inverted Darlington circuitry actively works to reduce distortion by employing a low negative-feedback design to maintain voltage stability and enhance transient response. It’s extremely sensitive to oscillations and requires sophisticated control technology. Together with the push-pull amplifier design, the three-stage inverted Darlington Circuitry shapes a clean, consistent signal to send to the outputs.
- 140 Watts per Channel at 4 Ohms, 20 Hz–20 kHz, 0.05%, 2 Channels Driven, FTC
- AWRAT (Advanced Wide Range Amplifier Technology)
- DIDRC (Dynamic Inter-modulation Distortion Reduction Circuitry)
- Parallel Push-Pull Amplification Design with Three-Stage Inverted Darlington Circuitry
- 192 kHz/24-Bit HD Audio Playback via Coaxial Inputs
- New Circuit Board Construction with Internal Struts to Reduce Vibration
- Symmetrical Layout of L/R Channels
- Separate Wolfson® 192 kHz/24-Bit DACs (WM8742 x 2) for L/R Channels
- Four Large 15,000 μF Capacitors
- 0.05˝ (1.2 mm)-Thick Copper Bus Plate for Perfect Grounding
- Four Amplifier Modes (Integrated Amp, Power Amp, Pre-Amp, Split Pre-Amp/Power Amp)
- 3 Digital Audio Inputs (1 Optical and 2 Coaxial)
- 3 Analog Audio Inputs and 1 Output
- Main-In Terminal
- Independent Headphone Amplifier
- Discrete Phono Equalizer (MM/MC)
- Speaker A/B Drive
- Audio L/R Pre-Out
- Customized, Gold-Plated, Banana Plug-Compatible Speaker Posts
- Machined, Gold-Plated RCA and Phono Terminals
- Auto Standby Function
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