Technics SU-G30 Grand Class Network Audio Amplifier

Network Audio Amplifier SU-G30

Hi-Fi network amplifier achieves ideal simplicity and performance for the era of high-resolution audio.

$4,995.00

JENO Engine (Jitter Elimination and Noise-shaping Optimization)

Jitter is a major cause of distortion in digital systems, and is caused by mis-timing in the master clocks used in digital-to-analogue conversion. To eliminate the degradation of sound caused by jitter, Technics has developed an original jitter reduction circuit, comprising a clock generator in the noise-shaping system to reduce jitter in the low-frequency range and a high-precision sample rate converter for suppressing jitter in the high-frequency range. Thus it reduces jitter in an ideal way over the entire frequency range. This works with a newly-developed and original high-precision PWM (Pulse Width Modulation) conversion circuit, optimising the noise-shaping speed, the degree and requantisation error, and the PWM gradation, in order to convert high-resolution signals to PWM without causing any damage to the dynamic range. These new technologies enable the new generation of Technics digital amplifier designs to reproduce the natural and delicate nuances of music.

JENO Engine (Jitter Elimination and Noise-shaping Optimization)

GaN-FET Driver (High Speed and Low Impedance Power devices)

In the power output section of the amplifier, Technics has employed a high-speed GaN (gallium nitride) FET driver device with super-low resistance. This enables the construction of a high-power amp using a single push-pull configuration, allowing the length of the large current carrying signal path to be shortened, and resulting in outstanding linearity regardless of the sound level.

GaN-FET Driver (High Speed and Low Impedance Power devices)

LAPC (Load Adaptive Phase Calibration)

The impedance of a speaker is not constant: it varies according to frequency, thus altering the loading on the amplifier and therefore potentially the sound. Technics is able to measure an amplifier's frequency amplitude-phase characteristics with speakers connected, and has developed a speaker impedance adaptive optimisation algorithm. Using digital signal processing to achieve the ideal impulse response. Correction processing based on the new algorithm achieves a flat frequency response for both amplitude and phase, which is not possible with a conventional amplifier. Delivering a sound with a rich spatial expression.

LAPC (Load Adaptive Phase Calibration)

High-speed Silent Hybrid Power Supply

With a conventional switch mode power supply, the switching frequency changes in response to the load fluctuation in order to control the switching ON time for stabilising the output voltage. This fluctuation component in the switching frequency has a negative impact on sound quality. The newly developed power supply reduces the noise component harmful to sound quality by fixing the switching frequency. In addition, the latter stage in the switching power supply is provided with a linear regulator to stabilise the output voltage. The linear regulator uses custom, high-definition electrolytic capacitors. What's more, the resonance power supply decreases the level of switching noise, and the PFC (Power Factor Correction) reduces primary current peaks and higher harmonics. The parts used for absorbing noise, such as capacitors, were carefully selected. All possible measures were taken to achieve low noise and reproduce clear sound.

High-speed Silent Hybrid Power Supply

Battery Driven Clock Generator

The best power supply for delicate circuitry such as the clock generator in the new amplifiers is one entirely isolated from any noise or fluctuations in the mains supply. Technics has extensive experience in circuits using battery isolation, having used them to create ultra-low-noise pre-amplifier stages in past analogue amplifiers.

Digital Noise Isolation Architecture

The SU-G30 Network Audio Amplifier receives audio signals from various digital content devices, such as NAS, PCs, USB memory devices, and other digital inputs. Many of these digital content storage systems were originally designed for use with PCs, so low noise – which is required for pure audio reproduction – was never a main design concern. To handle these often noisy sources, the SU-G30 isolates the interfaces for these media to exclude external electrical interference, and also employs a jitter remover, thus offering clear and stable sound, free from noise and distortion.

Digital Noise Isolation Architecture

Ultra Low Distortion Oversampling Digital Filter

An oversampling digital filter, incorporating an original Technics algorithm, shifts digital noise to -160 dB or lower, thus moving any potential distortion far beyond hearing and leaving a rich, detailed sound.

Ultra Low Distortion Oversampling Digital Filter

High Res Re-master – enhanced for compressed audio

Technics has developed signal processing to increase both sampling frequency and bit depth: the High Res Re-master system converts audio signals to high resolution at up to 192 kHz/32 bits, to bring the listener closer to the original music.

Sound sources that have been compressed based on the audibility threshold and masking effect of human auditory phenomena. Lack the data necessary to reproduce expansive high-frequency sound, as well as detailed and powerful low frequencies. Because the frequency range is reduced and low level signals are omitted. To solve this problem, Technics has developed High Res Re-master using an original algorithm. As a result, the SU-G30 lets you enjoy natural, expressive and rich sound rivalling that of high-res audio.

High Res Re-master – enhanced for compressed audio

Wi-Fi Capability

You can connect the SU-G30 to a network via a home LAN system using a cable or with a wireless configuration (IEEE802.11a/b/g/n). The built-in Wi-Fi function lets you easily connect to a network without using a LAN cable even if your PC or broadband router is set up in another room.

Bluetooth® Capability

The SU-G30 is also equipped with a Bluetooth® function that supports aptX® and AAC. This lets you stream music easily from a Bluetooth®-ready device.

Spotify and vTuner Supported

In addition to DLNA and USB playback capability, the SU-G30 supports Spotify Connect and vTuner. For vTuner, use the Technics Music App to select stations and listen to a wide variety of broadcasts.


Specifications

Accurate Digital Technology

  • JENO Engine (Jitter Elimination and Noise-shaping Optimisation)
  • GaN-FET Driver 
  • LAPC (Load Adaptive Phase Calibration) 
  • High-speed Silent Hybrid Power Supply 
  • Battery Driven Clock Generator 
  • High Rigidity Metal Double Chassis

Noiseless Signal Technology

  • Digital Noise Isolation Architecture 
  • Ultra Low Distortion Oversampling Digital Filter 
  • High Res Re-master - enhanced for compressed audio
  • Optimally Activated Circuit System

Technics Definitive Design

  • High Rigidity Aluminium Cabinet 
  • Symmetric Structure

Output Power

  • 50 W + 50 W (1 kHz, T.H.D. 0.5 %, 8 Ω, 20 kHz LPF) 
  • 100 W + 100 W (1 kHz, T.H.D. 0.5 %, 4 Ω, 20 kHz LPF)

Input Sensitivity / Input Impedance

  • LINE 200 mV / 22 kΩ, PHONO (MM) 2.5 mV / 47 kΩ

Frequency Response

  • LINE 5 Hz - 80 kHz (-3 dB, 8 Ω), 
  • PHONO (MM) 20 Hz - 20 kHz (RIAA DEVIATION ±1 dB, 8 Ω),
  • DIGITAL 5 Hz - 90 kHz (-3 dB, 8 Ω)

THD+N

  • 0.05 % (1 W at 1 kHz, 8 Ω, 20 kHz LPF)

Load Impedance

  • 4 - 16 Ω

Analogue Input Terminal

  • LINE x 1, PHONO (MM) x 1

Digital Input Terminal

  • Coaxial Digital x 2, Optical Digital x 1, USB-A, USB-B

USB-A

  • iPod/iPhone/iPad

Yes

Support Codec

  • WAV

Yes (32, 44.1, 48, 88.2, 96, 176.4, 192 kHz / 16, 24 bit)

  • FLAC

Yes (32, 44.1, 48, 88.2, 96, 176.4, 192 kHz / 16, 24 bit)

  • DSD

Yes (2.8224 MHz, 5.6448 MHz)

  • AIFF

Yes (32, 44.1, 48, 88.2, 96, 176.4, 192 kHz / 16, 24 bit)

  • ALAC

Yes (32, 44.1, 48, 88.2, 96, 176.4, 192 kHz / 16, 24 bit)

  • AAC

Yes (32, 44.1, 48, 88.2, 96 kHz / 16-320 kbps)

  • WMA

Yes (32, 44.1, 48 kHz / 16-320 kbps)

  • MP3

Yes (32, 44.1, 48 kHz / 16-320 kbps)

USB-DAC (USB-B)

  • USB Audio Class Specification

USB Audio Class 2.0, Asynchronous Mode

Support Codec

  • DSD

Yes (2.8224 MHz, 5.6448 MHz, 11.2896 MHz)

  • PCM

Yes (32, 44.1, 48, 88.2, 96, 176.4, 192, 352.8, 384 kHz / 16, 24, 32 bit)

DLNA Support Codec

  • WAV

Yes (32, 44.1, 48, 88.2, 96, 176.4, 192 kHz / 16, 24 bit)

  • FLAC

Yes (32, 44.1, 48, 88.2, 96, 176.4, 192 kHz / 16, 24 bit)

  • DSD

Yes (2.8224 MHz, 5.6448 MHz)

  • AIFF

Yes (32, 44.1, 48, 88.2, 96, 176.4, 192 kHz / 16, 24 bit)

  • ALAC

Yes (32, 44.1, 48, 88.2, 96, 176.4, 192 kHz / 16, 24 bit)

  • AAC

Yes (32, 44.1, 48, 88.2, 96 kHz / 16-320 kbps)

  • WMA

Yes (32, 44.1, 48 kHz / 16-320 kbps)

  • MP3

Yes (32, 44.1, 48 kHz / 16-320 kbps)

Headphone Output

Yes

Ethernet Interface

LAN (100 Base-TX / 10 Base-T)

Wi-Fi

  • IEEE 802.11a/b/g/n, 
  • 2.4 GHz band (1-11channel)
  • 5 GHz Band (36, 38, 40, 44, 46, 48, 149, 151, 153, 157, 159, 161, 165 Channel)

AirPlay

Yes

Bluetooth® (Support Codec)

Yes (aptX® Low Latency, AAC, SBC)

vTuner / Spotify

Yes* / Yes*

Power Supply

AC120 V, 60 Hz

Power Consumption

96 W

Dimensions (W x H x D)

430 x 98 x 424 mm
13-3 / 8 x 3-1 / 16 x 11-5 / 8 inch

Weight

Approx. 11.5 kg
Approx. 25.4 lbs

Accessories

Remote Control, AC Cord, Owner's Manual