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Photos and specs AV-receiver Onkyo TX-NR747

Review and test AV-receiver Onkyo TX-NR747
  • AV-receiver Onkyo TX-NR747
  • AV-receiver Onkyo TX-NR747
  • AV-receiver Onkyo TX-NR747
  • AV-receiver Onkyo TX-NR747
  • AV-receiver Onkyo TX-NR747

Description AV-receiver Onkyo TX-NR747

AV receiver Onkyo TX-NR747 has a complete set of advanced AV features, and develops the power output, enough to produce quite large rooms. The phone has an uncluttered front panel, which is the minimum set of required controls, and connectors. The receiver has a 7.2 configuration, and is able to articulate one area.

The presence of the THX Select2 Plus certification, which has this model, confirms its excellent theatrical performance. Speaking about the functionality of TX-NR747, the first is to note the presence of two of the latest object-oriented surround sound formats – Dolby Atmos and DTS:X. the Device is equipped with eight HDMI inputs (one located on the front panel) and two outputs, with HDCP 2.2 and 4K video transmission. The receiver has seven channels of amplification with a capacity of 175 watts, made by proprietary technology broadband amplification WRAT. In the power supply of TX-NR747 installed a custom shielded transformer with large power reserve, as well as the filter capacitors of large capacity.

To configure surround sound in Onkyo TX-NR747 a system room calibration AccuEQ Room Acoustic Calibration, and to improve the sound of compressed recordings provides the Advanced Music Optimizer. The receiver is equipped with seven linear inputs for audio sources, as well as input for MM cartridge the turntable.

In the sound tract Onkyo TX-NR747 with high-quality DAC AK4458 with parameters 384 kHz/32 bit and dual 32-bit DSP. The latter provides four additional sound processing, you can also get surround sound from a stereo signal. Over the network and from USB media receiver plays the files with parameters up to 24 bit / 192 kHz (PCM) and 2.8/5.6 MHz (DSD). The device is equipped with built-in Wi-Fi and Bluetooth modules, supports AirPlay and diverse network of Internet services. To operate the receiver it is convenient to use the branded Onkyo app for mobile devices, the company also ensures regular updating of the firmware of the device via the Internet.

Features AV receiver Onkyo TX-NR747

Support for Dolby Atmos and DTS:X
THX certified Select2 Plus
Ethernet, USB, wifi, Bluetooth, support for DSD files
HDMI switching 4K/60 Hz
Configuration 7.2

Characteristics of AV-receiver Onkyo TX-NR747

The number of channels7.2
Output power175 watts per channel (6 Ohms, 1 kHz, 1% THD, 1 Channel Driven, IEC), 185 W per channel (6 Ohms, 1 kHz, 1 Channel Driven, JEITA)
Dynamic power250 W (3 Ohms, front channels), 230 watts (4 Ohms, front) 130 W (8 Ohms, front)
THDOf 0.08% (20 Hz - 20 kHz, half power)
The damping ratio60 (8 Ohms, 1 kHz, front)
Input sensitivity/impedance200 mV/47 kω (line input), 2.5 mV/47 kOhm (input MM Phono stage)
Output level and impedancerated: 200 mV/2.2 kω (line out RCA), max.: 2.0 V/2.2 kω (line out RCA)
Frequency range10 Hz - 100 kHz ( 1 dB, -3 dB, Direct mode)
Voices± 10 dB, 20 Hz (bass), ± 10 dB, 20 kHz (treble)
The signal-to-noise100 dB (line input) 80 dB (input MM Phono stage)
Impedance AC4/6 – 16 Ohms or 6 – 16 Ohms
FM tuner87.5 MHz – 108 MHz
Tuner AM522 kHz – 1611 kHz
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