The Technics SU-R1000 is a true high-end integrated amplifier that sounds as good as it looks and it looks absolutely stunning!
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 original high-precision PWM (Pulse Width Modulation) conversion circuit, optimising the noise-shaping speed, the degree and re-quantisation number, and the PWM gradation, in order to convert high-resolution signals to PWM without causing any damage to the dynamic range. These technologies enable Technics digital amplifier designs to reproduce the natural and delicate nuances of music.
(Active Distortion Cancelling Technology)
The Active Distortion Cancelling Technology newly developed by Technics accurately extracts and removes distortion in the power output stage which is generated by the speaker’s counter electromotive force and voltage drops. In the Hi-Fi audio market where an unlimited number of audio systems can be configured by combining various products, high-end audio amplifiers need to optimally drive a diversity of speakers.
The Active Distortion Cancelling Technology accurately extracts distortion by determining the difference between the speaker terminal output and JENO output and then applies correction to the output digital signal, thus correcting the conventional digital amp system. This provides powerful speaker driving force and acoustic energy while offering the superior benefits of a digital amplifier, such as low noise, precise sound image and expansive sound ambience, regardless of the types of connected speakers.
Advanced Speed Silent Power Supply
The SU-R1000 uses a switching power supply system to ensure a stable supply of voltage and current required by the digital amp. In a conventional switching power supply system, the ON time of the switching operation was controlled in order to stabilise the voltage, and this causes the switching frequency to fluctuate according to the load, resulting in a modulation noise to affect the sound quality.
The Advanced Speed Silent Power Supply has eliminated this noise by fixing the switching frequency in the 400kHz band. Furthermore, a Super Low Noise Regulator is provided in the later stage.
In the SU-R1000, every element comprising the power supply has been diligently studied and revised for higher sound quality. What’s more, four independent power supply units are provided for different circuit blocks for further enhancement of sound quality.
Since the SU-R1000 is an integrated amplifier, the internal circuits consist of a pre-amp stage and power amp stage in a mix of analogue and digital circuits. The Phono-EQ section which processes minute analogue signals is particularly susceptible to the effect of noise transmitted through the power supply line.
The SU-R1000 uses separate power supply units for the analogue circuits and digital circuits in the pre-amp stage. It also uses separate power supply units for the right and left channels in the power amp stage that requires large electrical power. With the four independent power supply units, the SU-R1000 prevents power-line-induced interference among the circuit blocks and realises a high S/N ratio and superb separation.
Accurate Digital Technology
JENO Engine (Jitter Elimination and Noise-shaping Optimisation)
LAPC (Load Adaptive Phase Calibration)
Advanced Speed Silent Power Supply
Battery Driven Clock Generator
Noiseless Signal Technology
Advancement of Power Supply
Technics Definitive Design
FTC Output Power
150W + 150W ( 1kHz, T.H.D. 0.5 %, 8Ω, 20kHz LPF ),
300W + 300W ( 1kHz, T.H.D. 0.5 %, 4Ω, 20kHz LPF)
Input Sensitivity / Input Impedance
LINE 200 mV / 22 kΩ, PHONO (MM) 2.5 mV / 47 kΩ, PHONO(MC) 300uV /100Ω
LINE 5 Hz-80 kHz (-3 dB, 8 Ω),
PHONO (MM) 20 Hz – 20 kHz (RIAA DEVIATION ±1 dB, 8 Ω)
DIGITAL 5 Hz – 80 kHz (-3 dB, 8 Ω)
4 Ω-16 Ω
Analogue Input Terminal
LINE x 2 (LINE 1, LINE2), LINE XLR BALANCED x1, PHONO (MM/MC) x1, PHONO XLR BALANCED(MC) x1, MAIN IN x1, REC IN x1
Digital Input Terminal
Optical digital x2 (OPT 1, OPT 2) , Coaxial digital x2(COAX 1, COAX 2), USB-B x2 (PC 1, PC 2)
Analogue Output Terminal
PRE OUTx1, REC OUT x1
Yes, Stereo Φ6.3mm
USB 2.0 high-speed ,USB Audio Class 2.0, Asynchronous mode
PCM (32, 44.1, 48, 88.2, 96, 176.4, 192, 352.8, 384 kHz / 16, 24, 32 bit)
DSD (2.8 MHz, 5.6 MHz, 11.2 MHz, 22.4 MHz* *ASIO Native mode only)
AC 220-240 V, 50 Hz / 60 Hz
Dimensions (W x H x D)
430 mm × 191 mm × 459 mm
Approx. 22.8 kg
Remote Control, Calibration Record, AC Cord, Owner’s Manual