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Network Audio Amplifier SU-G30

SU-G30

Grand Class Network Amplifier

Hi-Fi network amplifier achieves ideal simplicity and performance for the era of high-resolution audio.
  • logo of MQA
  • TIDAL
  • Spotify
  • vTuner
SU-G30

Features

JENO Engine
(Jitter Elimination and Noise-shaping Optimization)

Concept of JENO Engine, Block Diagram of Digital Amplifier, Output of R1 JENO Engine, Photo of Microchip
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.

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

Block Diagram of Digital Amplifier, GaN/MOS-FET Characteristics, Photo of GaN-FET
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.

LAPC
(Load Adaptive Phase Calibration)

Concept of LAPC, Gain and Delay by Conventional Amplifier / LAPC
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.

High-speed Silent Hybrid Power Supply

Concept of 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.

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

Concept of 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.

MQA and Streaming supported

logo of MQA, TIDAL, Spotify, vTuner
MQA
This unit includes the MQA (Master Quality Authenticated) technology, which enables playback of MQA audio files and streams, delivering the sound of the original master recording.

TIDAL, Spotify and vTuner Supported
In addition to DLNA and USB playback capability, the SU-G30 supports TIDAL, Spotify Connect and vTuner. For vTuner, use the Technics Music App to select stations and listen to a wide variety of broadcasts.
*Compatible music streaming services will be supported sequentially through firmware updates.
*Network content services are operated by their respective service providers, and service may be discontinued either temporarily or permanently without notice. Some content may not be available in the country in which you reside.
*Registration/subscription may be required. Fees may apply.

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Specs

Photo of Network Audio Amplifier SU-G30

Size and Weight

Height
98mm
Width
430mm
Depth
424mm
Weight
11.5kg

*Approx.
aptX® software is copyright CSR plc or its group companies. All rights reserved.
The aptX® mark and the aptX logo are trademarks of CSR plc or one of its group companies and may be registered in one or more jurisdictions.
The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Panasonic Corporation is under license. Other trademarks and trade names are those of their respective owners.
AirPlay, iPad, iPhone, and iPod touch are trademarks of Apple Inc., registered in the U.S. and other countries.
"Direct Stream Digital", DSD and their logos are trademarks of Sony Corporation.
Windows Media and the Windows logo are trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries.
MPEG Layer-3 audio coding technology licensed from Fraunhofer IIS and Thomson.
Wi-Fi®, Wi-Fi CERTIFIED™ and Wi-Fi Protected Setup™ are marks of the Wi-Fi Alliance.
DLNA, the DLNA Logo and DLNA CERTIFIED are trademarks, service marks, or certification marks of the Digital Living Network Alliance.
The MQA logo is a trademark of MQA Limited. © MQA Limited 2017

JENO Engine (Jitter Elimination and Noise-shaping Optimization)

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

LAPC (Load Adaptive Phase Calibration)

High-speed Silent Hybrid Power Supply

Battery Driven Clock Generator

High Res Re-master – enhanced for compressed audio

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