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Photos and specs Stereo amplifier Onkyo A-9070

Review and test Stereo amplifier Onkyo A-9070
  • Stereo Amplifier Onkyo A-9070
  • Stereo Amplifier Onkyo A-9070
  • Stereo Amplifier Onkyo A-9070
  • Stereo Amplifier Onkyo A-9070

Description stereo amplifier, Onkyo A-9070



Wanting to satisfy the requirements of passionate music lovers, the Japanese company Onkyo has released a new model stereo amplifier A-9070, which has a high sound quality and broad functionality. The power output of the device is 2*140 W at 4 ohms and 2*75 W at 8 Ohm, which in combination with high damping ratio allows great control over any speaker. Onkyo engineers have applied the technology of broadband amplification AWRAT to truly and accurately convey all the nuances of audio. In the diagram DIDRC aimed at suppression of dynamic intermodulation distortion, it increases the clarity of sound, especially in HF range. Installed in the Onkyo A-9070 power pack includes 4 of the condenser, with a capacity of 15000 UF, which store a large amount of electrical energy and ready at any moment to pass it on to the amplifier. Circuit power amplifier has low distortion and high efficiency output stages due to the use of the parallel push-pull architecture with a three stage amplification circuit power on inverted darlingtons transistors. On the boards of the amplifier is set by internal struts to reduce vibration.


In Onkyo A-9070 installed DAC 192 kHz/24-bit from Wolfson (WM8742 x 2), which can be set to alarm from external digital sources via the coaxial or optical inputs.


Integrated MM/MC Phono stage makes it easy to connect to an amplifier vinyl record player, and built in headphone amplifier allows you to enjoy high quality sound without disturbing others.
On the rear panel of the amplifier has 3 pairs of analog inputs and 1 pair of analog outputs. 4 pair screw speaker terminals allow you to connect 2 sets stereoacuity or to use Bi-wire to connect one set. Control buttons additional functions amplifier hidden behind a cover on the front panel. Onkyo A-9070 available in black or silver colors.


Features stereo amplifier, Onkyo A-9070


Energy-intensive supply
Integrated DAC 24-bit / 192 kHz
Independent headphone amplifier


Characteristics of the stereo amplifier Onkyo A-9070

Power2x 75W (8 Ohms, 20Hz-20kHz, 0.05% THD), 2x 140 watts (4 Ohms, 20Hz-20kHz, 0.05% THD)
The recommended load resistance 4 - 16 Ohms
The playable frequency range 1 - 250000 Hz ( 0/-3 dB)
THD 0,03 % (1 kHz, 1 W)
The signal-to-noise 107 dB
The damping ratio 130
The Phono stage is, MM, MC
Sensitivity (sound pickup of MM) 70 mV
The sensitivity of the line input 150 mV
Input impedance 47 kOhm
Inputs 2 coaxial, optical, 3 x RCA, Phono stage
Outputs earphones, linear
Interfaces external IR sensor
Connectors on the front panel headphones 6.3 mm
Connectors for acoustics screw
Dimensions (WxHxD) 435x174,5x534 mm
Weight 18.1 kg

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