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Onkyo-A-9070-Amplifier

Onkyo A-9070 4 Channel Stereo Integrated Amplifier | Hi-Res Audio | 140 Watts + 140 Watts

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Onkyo A-9070 4 Channel Stereo Integrated Amplifier | Hi-Res Audio | 140 Watts + 140 Watts

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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 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 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.

AWRAT (Advanced Wide Range Amplifier Technology)

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

1. DIDRC (Dynamic Intermodulation 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 equalizer.

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

High-quality Wolfson DACs work to optimize analog 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-analog 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.

Key Features

Amplifier Features

  • 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)

Other Features

  • 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
Brand ONKYO
Number Of Channels 4 Channel
Frequency Response 1 Hz - 250 kHz
Watts RMS per Channel (Continuous) 75 Watts
Watts RMS per Channel (4 Ω) 140 Watts
Watts RMS per Channel (8 Ω) 75 Watts
Input Sensitivity 150 mV (Line)
Input Impedance 47 kΩ (Line)
Signal-to-Noise Ratio 107 dB (Line, IHF-A)
Total Harmonic Distortion (THD) 0.006% (Half power)
Number of Inputs 6
Phono Input Yes
RCA Input 3
Coaxial Digital Inputs 2
Optical Digital Inputs 1
Preamp Outputs 1
Warranty Australian Manufacture Warranty
Product Dimension (H×W×D) mm 174.5 x 435 x 431 mm
Product Weight (Kg) 18.1 Kg
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Need to know more about the Onkyo A-9070 4 Channel Stereo Integrated Amplifier | Hi-Res Audio | 140 Watts + 140 Watts? 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.

Refund, Return and Repair Policy

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Please read our Refund, Return Warranty Policy before making a purchase from Digital Cinema, our Outlined are Our policy on refunds, returns and repairs and your rights under the Australian Consumer Law.

Always inspect any products that we have delivered to you or that you picked up from the Digital Cinema store, to make sure you are completely satisfied with the condition of the products, including that the products are of merchantable quality.

If you have any questions about this policy, please contact our staff on 1300 859 905 or click here to email.

Change of Mind

Please choose carefully as refunds for change of mind would only be accepted with a restocking fee subject to approval. We recommend you carefully choose any products before adding them to your cart and continuing with your order. The restocking fee is 25% if approved.

Goods Damaged in Transit

If any products are delivered damaged, please contact our Customer service Staff as soon as possible. Digital Cinema will organise to have your products returned to Digital Cinema and to arrange for a replacement of your products fast. Damaged products need to be returned in the same condition received by you with all original packaging, accessories and manuals.

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Delivery Charges

Digital Cinema will refund all delivery charges in the event an item has to be returned due to a fault or damage and no replacement items can be found. Delivery refund will only be approved within 14 days of purchase and all original packaging, accessories and manuals are included.

Consumer Guarantees and Your Rights Under the Australian Consumer Law

Refer to Consumer Guarantee laws for more information.

Refunds

Any Refunds will be made by Digital Cinema using the same method of payment used to make your purchase. Refunds will normally be processed within five (5) days.

Digital Cinema reserve the right to refund and cancel any order when the below occurs.

  • Grossly incorrect pricing has been listed by accident due to human error.
  • Items cannot be fulfilled due to stock issues.
  • The sale is considered to be fraudulent and Digital Cinema considers the fulfillment of this sale may harm Digital Cinema.

You will be contacted by email to explain why a refund has been issued and products not delivered.

Returns and Repairs

Before returning any goods please contact our service team for approval and return merchandise number 1300 859 905

You may also contact Digital Cinema on 1300 859 905 or visit the store where the items were collected. A Digital Cinema team member will help you with any return or repair. This will include inspecting the products, organising for the products to be repaired, or offering you a replacement.

Products need to be returned within a reasonable time period. This timeframe may vary from product to product and may depend on the type of product you purchased and the price you paid.

If any goods cannot be easily returned to the Digital Cinema store, due to where you are located please contact our service staff for help with logistics 1300 859 905

Products returned under warranty will be assessed and/or repaired within a reasonable time period. You will be provided with a repair time after the item is assessed. This time may vary due to reasons beyond our or the manufacturer's control, such as parts availability and incorrect fault advice given.

You may be required to pay labour, assessment or freight costs, such as where goods are assessed to have been damaged by misuse or accident, or where the goods are assessed not to be faulty. We will provide you with a cost if this case arrises.

If any electrical goods that you returned may lose settings or user saved preferences during the resetting and rebooting phases in a repair sequence.

Purchasing from Digital Cinema is an acceptance of the above policies.

If you have any questions relating to your Order, please contact us on 1300 859 905 or email customer support on enquiry@www.digitalcinema.com.au.