Description
Integrated amplifier, power 2 x 70 W (8 Ohm), 2 x 140 W (4 Ohm), inputs: 3 analog stereo (2x RCA, 1x Phono), 5x digital (2x Toslink, 2x coaxial, 1x USB-B), outputs: 1 line output (RCA), 1 preamplifier output (RCA), dimensions: 430 x 148 x 428 mm, weight 12.6 kg.
JENO Engine (jitter elimination and noise optimization)
In the power amplifier section, the SU-G700M2 uses all-digital amplification using the JENO Engine, based on the concept of reference system design to accurately transmit huge amounts of audio data. The SU-G700M2 features an ingenious jitter reduction circuit that eliminates jitter across the entire audible frequency range. By optimizing parameters such as noise generation rate, quantization rate and number, our unique expertise ensures that even high dynamic range data contained in high-resolution audio sources is losslessly converted into PWM signals. These technologies allow you to perceive even subtle musical nuances.
LAPC (Load Adaptive Phase Calibration)
The impedance of a speaker changes with each frequency, so a power amplifier is required to drive the speakers. Conventional digital amplifiers drive speakers through a low-pass filter on the output stage, so they are even more affected by the impedance characteristics of the speaker. Although the amplitude characteristics of conventional amplifiers were improved due to negative feedback, the phase characteristics were not improved. Thus, we have developed an adaptive speaker impedance optimization algorithm that performs ideal sound correction by measuring the frequency-amplitude-phase characteristics of the amplifier.
Quiet Advanced Speed Power Supply
This amplifier has used power supply technology to increase the speaker's power and provide a greater sense of energy. The switching frequency has been increased from the usual 100 kHz range to the 400 kHz range to ensure a stable voltage supply. The device features the same GaN and SiC SBD transistors found in the SU-R1000 to provide maximum performance from the high-speed switching power system.
Moreover, an ultra-low noise regulator is provided at a later stage. This prevents deregulation due to the fixed switching frequency and prevents the noise component from mixing into the high frequencies.
Low noise PHONO input
The PHONO input provides low noise by using a differential parallel configuration of the first stage of the low noise FET. In addition, four-level gain control allows you to select the best gain according to the output power of the cartridge. This ensures optimal reproduction of high-quality analogue recorded audio sources, tailored to the user's environment.
Class AA Headphone Amplifier
The SU-G700M2 uses a Class AA headphone amplifier to amplify the voltage and current of the audio signal. The voltage is amplified by a high-quality operational amplifier, the current is amplified by an op-amp with high current delivery capability, and the high-quality PWM signal output from the JENO Engine is converted to analog with high precision, allowing you to use headphones. This allows you to play music with low distortion and a wide frequency range.
