Technics SU-GX70 Network Audio Amplifier
1799,00 €
The definitive living room audio center that enables seamless enjoyment of video, audio and music through next-level integration using Technics full digital technologies. A heavily featured streaming amplifier that combines the sonic genes of Technics Grand Classcomponents with a wealth of source functions, including video connectivity, the SU-GX70Network Audio Amplifier easily integrates into the home hi-fi system with the inclusion of an HDMI ARC port.
Full Digital Amp, JENO Engine
The SU-GX70 uses a fully digital amplifier that incorporates Technics’ renowned digital audio technology. Its digital transmission system processes signals fully digitally in all stages from input to output. Compared to analogue transmission, this system is less susceptible to signal degradation caused by external noise, ensuring more precise signal transmission. Accurate signal processing not only delivers high-resolution digital audio but also maintains the soft texture inherent in analogue recordings.
Further, a JENO Engine has been used in the HDMI ARC (Audio Return Channel), which has been installed in a Technics product for the first time. This helps to reduce any degradation in sound quality caused by jitter during the transmission of digital audio signals (S/PDIF), ensuring unparalleled levels of clarity in TV audio.
High-quality audio components have been used in various other locations, too. For example, chip film capacitors have been used in place of power supply noise-reduction capacitors and signal path coupling capacitors.
Ideal Impulse Response through LAPC
Speaker impedance changes with each frequency and a power amplifier is required to drive speakers without being affected by the speaker’s characteristics. However, conventional digital amplifiers are connected to speakers through a low-pass filter at the output stage, so they are even more strongly affected by the speaker impedance characteristics. Also, although the amplitude characteristics of conventional amplifiers due to negative feedback were improved, the phase characteristics could not be enhanced.
We thus developed a speaker impedance adaptive optimization algorithm that performs correction to the ideal impulse response through digital signal processing by measuring the frequency amplitude-phase characteristics of the amplifier with the speakers connected. This technique enables flattening of the frequency characteristics of amplitude and phase, which had previously not been achieved by amplifiers, while also delivering a sound with rich spatial expression.
Twin Power Supply Circuit System
The design of the power supply is extremely critical in audio systems containing amplifiers, digital circuits and other such components. To eliminate any adverse effects on the amplifier, the SU-GX70 is equipped with a dedicated power supply for the power amplifier circuits that is independent from all other circuits. As such, the same electrolytic capacitors installed in high-end models have been used in the dedicated amplifier power supply and the power amplifier components.
Further, by using the shortest possible connection between the power supply and the power amplifier, the SU-GX70 ensures low noise and low impedance. Elsewhere, the connections between the speakers and power amplifier use non-magnetic brass screws.
The SU-GX70 uses a high-speed switching power supply of approximately 130 kHz. By increasing the switching frequency, noise interference on the music playback bandwidth is reduced. This enables highly responsive power supply for music signals and powerful speaker drive capability.
| Frequency response: | PHONO (MM) 20Hz – 20kHz ( RIAA DEVIATION ±1dB, 4Ω ), LINE 20Hz - 40kHz (-3dB, 4Ω); DIGITAL 20Hz - 80kHz (-3dB, 4Ω) |
| Input sensitivity: | PHONO (MM) 2.0 mV/47 kΩ, LINE 200 mV / 23 kΩ |
| Digital outputs: | HDMI ARC |
| Headphone output power: | Stereo Φ6.3 mm |
| Outputs: | 40W+40W(1kHz,T.H.D.1.0%, 8Ω,20kHz LPF), 80W+80W(1kHz,T.H.D.1.0%, 4Ω,20kHz LPF) |
| Analogue inputs: | LINE x 2; PHONO (MM) x1 |
| Digital inputs: | Optical digital x2, Coaxial digital x1, USB-A x1, USB-B x1 |
| Analog outputs: | PRE OUT x1 |
| Digital outputs: | HDMI ARC |
| Headphone output power: | Stereo Φ6.3 mm |
| Wi-Fi: | IEEE 802.11a/b/g/n/ac/ax; 2.4 GHz band / 5 GHz band |
| Bluetooth: | Yes (AAC, SBC) |
| Ethernet: | LAN (100BASE- TX/10BASE-T) |
| Weight: | Approx. 6.6 kg |
| Dimensions (HxWxD): | 98×430×368 mm |
Technics is a legendary Japanese audio brand with decades of engineering heritage, best known for its direct-drive turntables and precision motor design. Today Technics also delivers refined stereo electronics and sources, combining long-term reliability with a clean, engineering-first approach to sound.
Hi-Fi Market is an authorised Technics dealer in Estonia, supplying genuine products with official manufacturer warranty and local support. We help you choose the right Technics direction for your system goals — from a reference turntable setup to a balanced stereo system built for real rooms and real listening habits.
Visit our showroom near Tallinn (Tabasalu) to explore selected Technics models and discuss practical setup details before you buy — including turntable setup basics and system matching for coherent, controlled sound.
Build a Vinyl + Stereo System with Technics
Technics is often chosen as the foundation of a serious vinyl setup. Start with a direct-drive turntable, then match amplification, speakers and sources for your room size, listening distance and preferred sound character.
Explore compatible categories to build a balanced Technics-based system:
If you want a short shortlist, contact us — we’ll recommend a Technics-based setup tailored to your room, budget and music preferences.
FREE DELIVERY ACROSS ESTONIA (For orders over €100)
Shipments within Estonia generally arrive at the destination specified by the buyer within 3-5 business days from the entry into force of the sales contract. The contract enters into force from the moment the amount due is received into the online store's bank account.
If you wish, you can also pick up the goods yourself. The address of the salon is Kallaste 7, Tabasalu.
WE DELIVER TO ALL COUNTRIES OF THE EUROPEAN UNION.
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OWNER OF THE ONLINE STORE
The owner of the online store hifimarket.ee is Audio Sommelier OÜ (registration number 16891515), address Kallaste, 7, Tabasalu Keskus, Estonia 76901
