Technics SU-G700M2 Grand Class Stereo Integrated Amplifier at Vinyl Sound Buffalo, NY USA

The SU-G700M2 is a Grand Class stereo integrated amplifier from Technics (Osaka, Japan), available at Vinyl Sound in Buffalo, New York, USA. Inheriting the full-digital core amplifier technologies of the Reference Class SU-R1000, the SU-G700M2 delivers 70W + 70W into 8 ohms and 140W + 140W into 4 ohms via the JENO Engine (Jitter Elimination and Noise-shaping Optimisation) full-digital amplification platform. LAPC (Load Adaptive Phase Calibration) measures the connected speaker's frequency amplitude-phase characteristics and applies real-time digital correction for optimised impulse response. The Advanced Speed Silent Power Supply inherited from the SU-R1000 fixes the switching frequency in the 400 kHz band. Both MM and MC phono inputs are provided, alongside two optical, two coaxial, and one USB-B digital input supporting PCM up to 384 kHz / 32-bit and DSD up to 11.2 MHz. The SU-G700M2 is available at Vinyl Sound in Buffalo, NY.

JENO Engine Full-Digital Amplification and LAPC

The SU-G700M2 processes audio signals fully digitally from input to output using the JENO Engine (Jitter Elimination and Noise-shaping Optimisation), the same core technology deployed in the Reference Class SU-R1000. The JENO Engine comprises a clock generator in a noise-shaping topology that eliminates jitter in the low-frequency range, and a high-precision sample rate converter that eliminates jitter in the high-frequency range, achieving near-zero jitter across the entire audio band. A high-precision PWM conversion circuit then converts high-resolution digital signals to PWM without degrading dynamic range, before the signal is output to the speaker terminals. LAPC (Load Adaptive Phase Calibration) measures the actual frequency amplitude and phase characteristics of the amplifier with the speakers connected and applies speaker-specific digital correction to achieve a flat frequency response and ideal impulse response. Because conventional digital amplifiers are connected to speakers through a low-pass filter at the output stage, speaker impedance variations affect both amplitude and phase response; LAPC corrects for these variations, delivering a more coherent and spatially expressive presentation with any connected loudspeaker.

Advanced Speed Silent Power Supply and Three-Section Configuration

The SU-G700M2 uses an Advanced Speed Silent Power Supply with a switching frequency fixed in the 400 kHz band, the same technology inherited from the SU-R1000 reference design. Fixing the switching frequency eliminates the modulation noise caused by fluctuating switching frequencies in conventional power supplies. A Super Low Noise Regulator in the subsequent stage prevents high-frequency noise ingress. The amplifier employs a dedicated power supply for the power amplifier circuits, independent of all other circuits, using the same grade of electrolytic capacitors as those in high-end Technics designs. The discrete analogue amplifier circuit in the input stage is redesigned and adapted from the SU-R1000's circuit, using the same symmetrical layout and high-grade audio components including low-noise FETs, thin-film resistors, film capacitors, and electrolytic capacitors. The chassis is a three-section configuration with noise and vibration prevention measures throughout, and non-magnetic brass screws in the speaker-to-power-amplifier connections.

Key Features

• JENO Engine Full-Digital Amplification: Inherited from the Reference Class SU-R1000; dual-stage jitter elimination across the full audio band; high-precision PWM conversion without dynamic range loss.
• LAPC (Load Adaptive Phase Calibration): Measures connected speaker's amplitude-phase characteristics and applies digital correction for flat frequency response and ideal impulse response with any loudspeaker.
• Advanced Speed Silent Power Supply: Fixed 400 kHz switching frequency inherited from the SU-R1000; Super Low Noise Regulator eliminates high-frequency noise contamination.
• MM and MC Phono Inputs: Moving magnet (2.5 mV / 47 kohms) and moving coil (300 uV / 100 ohms) phono inputs for full analogue source compatibility.
• USB-B DAC: USB Audio Class 2.0 asynchronous; PCM up to 384 kHz / 32-bit; DSD up to 11.2 MHz via ASIO Native or DoP mode.
• 70W + 70W into 8 ohms: FTC output power 70W + 70W (20-20 kHz, THD+N 0.5%, 8 ohms); 140W + 140W into 4 ohms.
• Discrete Analogue Input Stage: Redesigned from the SU-R1000 circuit with symmetrical layout; low-noise FETs, thin-film resistors, film capacitors, and high-grade electrolytic capacitors.
• Comprehensive Digital Inputs: Optical x2, Coaxial x2, USB-B x1; supports all major hi-res and DSD formats.
• 6.3 mm Headphone Output: Class AA headphone amplifier with separate voltage and current amplification stages.

Technical Specifications

What's in the Box

• Technics SU-G700M2 Grand Class Stereo Integrated Amplifier
• Remote Control
• Batteries for Remote Control
• AC Power Cord
• Owner's Manual

Frequently Asked Questions

What is the Technics SU-G700M2?

The Technics SU-G700M2 is a Grand Class stereo integrated amplifier from Technics of Osaka, Japan, delivering 70W + 70W into 8 ohms and 140W + 140W into 4 ohms via the JENO Engine full-digital amplification platform inherited from the Reference Class SU-R1000. It includes LAPC (Load Adaptive Phase Calibration) for speaker-optimised phase and amplitude correction, an Advanced Speed Silent Power Supply at 400 kHz switching frequency, MM and MC phono inputs, a USB-B DAC supporting DSD up to 11.2 MHz and PCM up to 384 kHz / 32-bit, two optical and two coaxial digital inputs, a Class AA headphone output, and a discrete analogue input stage adapted from the SU-R1000's circuit design.

How does the Technics SU-G700M2 compare to the SU-R1000?

The SU-R1000 is the Reference Class amplifier and the SU-G700M2 is the Grand Class model below it; both use the JENO Engine full-digital amplification core and LAPC. The SU-R1000 delivers 150W + 150W into 8 ohms and 300W + 300W into 4 ohms versus 70W + 70W into 8 ohms for the SU-G700M2. The SU-R1000 adds ADCT (Active Distortion Cancelling Technology) for real-time correction of speaker back-EMF distortion, four independent power supply units, an Intelligent Phono EQ with Calibration Record and DSP-based crosstalk cancellation, dual USB-B inputs, balanced XLR analogue inputs and phono inputs, and a heavier 22.8 kg chassis with 10 mm aluminium front panel. The SU-G700M2 shares the core amplification philosophy in a more compact 12.7 kg package without these higher-specification features.

What is LAPC and what difference does it make?

LAPC (Load Adaptive Phase Calibration) is a Technics measurement-based speaker optimisation system. It connects to the speaker terminals, measures the actual frequency amplitude and phase characteristics of the amplifier loaded by the connected speakers, and computes a digital correction filter that flattens both amplitude and phase response at the speaker terminals. In practice, this means the amplifier's output more closely approximates an ideal impulse response with the specific speakers connected, improving timing accuracy, imaging precision, and tonal neutrality. Unlike conventional negative feedback, which can improve amplitude response but cannot address phase distortion, LAPC corrects both simultaneously through digital signal processing.

Can the SU-G700M2 play DSD files from a computer?

Yes. The SU-G700M2's USB-B input supports DSD playback up to DSD256 (11.2 MHz) via ASIO Native mode on Windows and via DoP (DSD over PCM) mode on macOS and other platforms. USB Audio Class 2.0 is used in asynchronous mode for the lowest possible jitter from the connected source. PCM is supported up to 384 kHz / 32-bit over the same connection.

Where can I buy the Technics SU-G700M2 in Buffalo, NY or the USA?

The Technics SU-G700M2 Grand Class Stereo Integrated Amplifier is available at Vinyl Sound in Buffalo, New York, an authorised Technics dealer. It pairs naturally with the SL-G700M2 Grand Class Network/SACD Player via the System Control port. Contact Vinyl Sound Buffalo for availability and system matching advice.