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Onkyo A-9070 Amplifier and Bowers & Wilkins 704 S2 Speakers Hi-Fi System

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Onkyo A-9070 Amplifier and Bowers & Wilkins 704 S2 Speakers Hi-Fi System

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1 x Onkyo A-9070 4 Channel Stereo Integrated Amplifier

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Onkyo A-9070 Amplifier and Bowers & Wilkins 704 S2 Speakers Hi-Fi System
Onkyo A-9070 Amplifier and Bowers & Wilkins 704 S2 Speakers Hi-Fi System

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    • Official Leading Australian Dealer
    • Full Australian Manufacturers Warranty
    • Shipped with Tracking and Complimentary Insurance

    Onkyo A-9070 Amplifier and Bowers & Wilkins 704 S2 Speakers Hi-Fi System offers audiophile musical experience that features tremendous reduction of high-frequency distortion, vibration-damping, instantaneous-current, cutting edge acoustic technologies and powerful speaker.

    Onkyo A-9070 4 Channel Stereo Integrated Amplifier

    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 modes integrated amp, power amp, pre-amp, and split pre-amp/power amp offer flexibility when integrating other hi-fi components. Details like an independent headphone amplifier, a phonograph equaliser, three digital audio inputs, four analogue 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.

    • AWRAT (Advanced Wide Range Amplifier Technology)

      The A-9070 employs a host of proprietary Onkyo technologies to ensure optimal audio performance.

      • 1. DIDRC (Dynamic Inter-modulation Distortion Reduction Circuitry)

        Despite being beyond the normal range of human hearing, frequencies above 100 kHz are susceptible to clock pulse and other forms of distortion from digital devices. Such distortion in the super high-frequency range can generate “beat interference”, which in turn affects the character or atmosphere of the original sound. By improving linearity and reducing distortion in the super-high frequency range, Onkyo’s new DIDRC technology effectively reduces perceptible noise.

      • 2. Low Negative-Feedback Design

        Too much NFB makes a system susceptible to counter-electromotive force from the speakers, resulting in a drop in perceived sound quality. To avoid this, Onkyo focuses on improving the frequency response and reducing distortion, without relying so much on NFB.

      • 3. Closed Ground-Loop Circuits

        The A-9070 employs a sophisticated closed-circuit design in which each circuit has a separate link to the power supply. This helps to cancel individual circuit noise and keep the ground potential free of distortion.

      • 4. HICC (High Instantaneous-Current Capability)

        Handling current loads up to 100 amperes, HICC enables an amplifier to immediately cancel the speakers’ reflex energy and instantaneously send out the next signal. The same high current required to achieve this also supports the amplifier’s ability to handle speaker impedance fluctuations.

      • 5. Symmetrical Twin-Monaural Construction

        Power devices for the left and right channels of the A-9070 are aligned symmetrically. Each channel has the same electrical and structural design, and signal pathways are uniform in length. This helps to minimize errors in stereophonic playback.

    • 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.

    • Four Amplifier Modes for the Ultimate in Versatility

      Boasting the combined capabilities of a pre-amp and a power amp, the A-9070 is an amplifier with a difference. At the turn of a knob, it can be configured to run in any one of four distinct modes. Depending on how you want to integrate it into your hi-fi system, you can use it as an integrated amp, as a power amp, or as a pre-amp. On top of that, you can also set up the A-9070 in split mode. This enables the pre-amp and power amp to work separately, so you can incorporate another device, such as an equaliser.

      Separate Wolfson® 192 kHz/24-Bit DACs for L/R Channels

    • High-quality Wolfson DACs work to optimise analogue audio performance on the A-9070. The receiver features dual 24-bit WM8742 DACs, which support sampling rates of up to 192 kHz. Although these DACs are specified to handle two-channel audio on a single chip, Onkyo employs separate chips for each stereo channel to ensure the most accurate digital-to-analogue conversion.

    • New Circuit Board Construction

      Rather than being directly connected to the chassis base, the circuit boards inside the A-9070 are cushioned by internal struts and affixed to the front, side, and rear panels. This method of construction prevents vibrations from the chassis from adversely affecting the circuit boards.

    • Audiophile-Quality Parts

      To ensure optimal performance from the A-9070, Onkyo’s engineers incorporated a range of professional-grade parts. Four 15,000-microfarad capacitors and an extremely low-impedance 0.05˝ (1.2 mm) thick copper bus plate both contribute to achieving a smooth and stable power supply. Machined and gold-plated RCA and phono terminals ensure an extremely clean connection.

    Bowers & Wilkins 704 S2 Floorstanding Speakers

    Bowers & Wilkins 704 S2 Floorstanding Speakers blend in modest style in your home theatre with its elegant and slim design, featuring cutting-edge acoustic technologies and power, up to 150 Watts.

    Looks can be deceiving. Despite its slim dimensions, the 704 S2 has the commanding presence of a much larger speaker, thanks to advanced technologies such as a dedicated Continuum™ cone FST™ midrange.

    • Carbon Dome™ tweeter

      Carbon Dome™ tweeters are a brand new technology purpose-built for the 700 Series. Delivering a dramatic improvement on the aluminium double-dome tweeter, they raise the breakup threshold to 47kHz, for pinpoint imaging accuracy and detail.

    • Continuum™ Cone

      First introduced with the 800 Series Diamond, the Continuum™ cone represents the biggest step-change in midrange performance since Kevlar®. Its woven, coated material provides highly controlled break-up, resulting in a more open, neutral midrange.

    • Decoupled midrange

      The midrange driver in the floor-standers features a decoupled design, adapted from a similar system in the 800 Series Diamond. Decoupling reduces cabinet colouration and boosts midrange clarity.

    • Aerofoil™ Profile bass cone

      Developed using advanced computer modelling techniques, the Aerofoil™ Profile bass cone has a variable thickness, providing stiffness and rigidity where it’s needed most. The result: deep and dynamic bass.

    Key Features

    Onkyo A-9070 4 Channel Stereo Integrated Amplifier

    • 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

    Bowers & Wilkins 704 S2 Floorstanding Speakers

    • Decoupled Carbon Dome tweeter
    • Continuum cone FST midrange
    • Decoupled midrange
    • Aerofoil profile bass cones
    • Flowport™
    Manufacturer Bowers & Wilkins
    Enclosure type Vented Box
    Frequency Response 48 Hz - 28 kHz (±3 dB)
    Power 150 Watts
    Woofer Bass Driver Size (mm) 2 x 130 mm
    Midrange Size mm 130 mm
    Tweeter 25 mm
    Impedance (Ω) 8 Ω
    Sensitivity 88 dB
    Frequency Response 1 Hz - 250 kHz/+0 dB, -3 dB
    Watts RMS per Channel (4 Ω) 140 Watts
    Watts RMS per Channel (8 Ω) 75 Watts
    Digital to Analogue Converter 192 kHz/24-Bit
    AV Receiver Speaker Channels 4 Channel
    Total Harmonic Distortion 0.006% (Half power)
    Warranty Australian Manufacture Warranty
    Main Speaker Terminals 4
    Optical Digital Inputs 1
    Coaxial Digital Inputs 2
    Analog Inputs 3
    Phono Input 1
    Receiver (H×W×D) 174.5 x 435 x 431 mm
    Floorstanding (H×W×D) 959 x 252 x 298 mm (ea)
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    Need to know more about the Onkyo A-9070 Amplifier and Bowers & Wilkins 704 S2 Speakers Hi-Fi System? Ask a question or Call us on 1300 859 905 or Email us using below form or Visit us at Shop 15 265 Parramatta Road (Auburn Home Megamall), AUBURN, NSW, 2144, Australia.

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