Technics SU-GX70
Integrated amplifier
The SU-GX70 streaming amplifier is the first Technics product since the brand revitalization in 2014 with a HDMI ARC port. There has been strong demand for high-quality amplifiers allowing easy integration of a TV into the home hi-fi system for superior sound without the hassle of a complex multichannel system. Consequently, this new amplifier realizes very high sound quality at the HDMI ARC connection by using the parent company's (Panasonic) comprehensive experience of video signal treatment, allowing the full potential of the noise and distortion-free sound generated by Technics' proprietary full-digital amplification technology based on the JENO engine.
A new Twin Power Supply helps deliver a high signal-to-noise ratio for superb, detailed sound. The Clean Power Clock Generator technology, taken from Technics' Reference Class components, enables an ultimately stable clock signal for a high-precision digital signal processing. The SU-GX70 comes with a true wealth of functionalities. Based on the Google Chromecast platform, it allows the use of streaming services such as Spotify, Tidal, Deezer, Qobuz and Amazon Music. It also supports MQA. For wireless network communication, Wi-Fi, Airplay2 and Bluetooth are on board. 2 Line inputs, 3 digital input as well as USB-A and USB-B support connectivity to a wide range of source components are offered. The SU-GX70 supports internet radio and FM radio. Finally – and, as to be expected from a company representing the pinnacle of vinyl record performance – a high-grade low-noise phono EQ allows hook up to a turntable with an MM pickup cartridge for a genuine audiophile performance.
Additionally, the SU-GX70 is equipped with the "Space Tune" function*, which enables the adjustment of sound space according to the room environment and installation location so that anyone can enjoy superb music reproduction. By using the "Technics Audio Center*" app for tablets/smartphones or by selecting a setting from the four presets - "Free," "Wall," "Corner" and "In a Shelf" - using the main unit according to the installation location, the user can achieve the most suitable sound quality for a specific acoustic environment. Furthermore, the "L/R Custom" feature lets the user enter the setting independently for the left and right speakers when the speakers are set up in different installation conditions. This brings out the best sound reproduction in any installation conditions.
*Available for iOS devices only
| Measurements | 43 × 9,8 × 36,8 cm |
| Weight (net) | 6.6 kg |
| Digital input(s) | Yes |
| Input, optical (TosLink) | 2 |
| Input, coaxial (S/Pdif) | 1 |
| Input, USB | 2 |
| Input, network (RJ45) | Yes |
| Input, Stereo RCA | 3 |
| Input, Phono pre-amp | Yes, MM compatible |
| Input, HDMI | 1 |
| Output, Headphone | Yes, 1/4" TRS |
| Pre-out (stereo) | Yes |
| Wi-Fi | Yes |
| Wired network | Yes |
| Network features | AirPlay 2, Bluetooth, Bluetooth AAC, DLNA, Chromecast Audio, Roon Ready |
| Supported streaming services | Amazon Music Unlimited, Qobuz, Spotify, Tidal, Tidal Connect |
| App Control | Yes, iOS & Android |
| Audio decoding | DSD64 / 2.8 MHz, DSD128 / 5.6 MHz, DSD256 / 11.2 MHz, MQA decoder |
| Supported sample rates, kHz | 44.1, 48, 88.2, 96, 176.4, 192, 352, 384 |
| Supported bit depth | 16 bit, 24 bit, 32 bit |
| Tuner | FM, DAB+, Internet radio |
| Power at 8Ω (per channel) | 40 watts |
| Power at 4Ω (per. channel) | 80 watts |
| A/B Speaker | No |
| Number of channels | 2 |
| Amplifier type | Class D |
| In the box | Remote control, Power cable, Users guide |
| Other included accessories | DAB antenna (for indoor use), batteries for remote control |
| Power consumption | 63 watts max. |