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Features
Active Distortion Cancelling Technology (ADCT) corrects output-stage distortion to drive a wide range of speakers with authority
Advanced Speed Silent Power Supply with a fixed switching frequency and Super Low Noise Regulator for a fast, quiet power supply
Four independent power supply units isolate analog, digital, and left/right channel circuits for a high S/N ratio and superb separation
Intelligent Phono EQ with Accurate EQ Curve, Crosstalk Canceller and Response Optimizer, each switchable on or off
Cartridge calibration measures and corrects your cartridge’s crosstalk and frequency response using the included Calibration Record
Full-discrete, fully balanced phono and XLR inputs for high-purity signal transmission
USB input noise isolation with a ruby mica capacitor and nonmagnetic carbon film resistors to block PC noise
High-rigidity double-deck chassis with steel shield plates and cast iron insulators to suppress vibration
Refined Technics design with hairline-finish front panel, iconic dual-needle meter, and machined solid aluminum knobs
What's in the Box?
The SU-R1000 is a new kind of integrated amplifier, equipped with the next evolution of our full digital amplifier technology. In addition to highly pure sound with the influence of noise and distortion eliminated, we have achieved superior drive functions and a sound overflowing with energy.
Equipped with the next evolution of our full digital amplifier technology, the SU-R1000 produces an ideal sound that conveys all the richness and life of the original without any loss of fidelity. The SU-R1000 breaks through to a new world of sound, with superior sound quality and functionality, bringing together the latest Technics technology.
- JENO Engine (Jitter Elimination and Noise-shaping Optimization) to reproduce the nuances of music
- ADCT (Active Distortion Cancelling Technology) for expansive sound ambience
- Advanced Speed Silent Power Supply that results in the best performance from the digital amplifier
- Four Independent Power Supply Units for a high S/N ratio and superb separation
- High-grade Digital/Analog I/O Circuit for outstanding sound quality from any input source
JENO Engine
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 the original high-precision PWM (Pulse Width Modulation) conversion circuit, optimizing the noise-shaping speed, the degree and re-quantization 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)
ADCT
The Active Distortion Cancelling Technology newly developed by Technics accurately extracts and removes distortion in the power output stage that 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 stabilize the voltage, and this caused the switching frequency to fluctuate according to the load, resulting in modulation noise that affects 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. This prevents the decrease in regulation resulting from the fixed switching frequency and impedes the mixing of noise components into high frequencies. The result is a high-response power supply that results in the best performance from the digital amplifier.
Four Independent Power Supply Units
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 realizes a high S/N ratio and superb separation.
High-grade Digital/Analog I/O Circuit
The phono input section and analogue input section feature a fully discrete circuit design. Technics has realized an ideal, symmetrical circuit layout and performed meticulous tuning. The new circuits prevent interference between the right and left channels and achieve excellent channel separation. Furthermore, the phono input section and XLR input section employ completely balanced transmission to ensure high-purity signal transmission with minimal noise effects. The USB input circuit in the digital input section is equipped with a capacitor of high-quality ruby mica and a power conditioner with nonmagnetic carbon film resistors for blocking electrical noise, e.g., from a PC, and for minimizing the effect of external noise. The A/D converter incorporates a high-performance chip made by Asahi Kasei Microdevices (AKM) for high-precision A/D conversion. Thus, the SU-R1000 reproduces outstanding sound quality from any analogue or digital input source.
High Rigidity Chassis and Design
The rigidity of the chassis has been enhanced extensively to suppress enclosure vibration, which is also a source of noise. The inner chassis features a double-deck separated structure. Mounted on the upper deck is the power amp section consisting of the amplification circuit and its power supply circuit. Installed on the lower deck is the pre-amp section, which is comprised of the analogue input section, including the phono equalizer, and the digital input section, as well as the power supply circuits for those circuits. Steel shield plates separate not only the upper and lower decks but also individual circuit blocks. These steel shield plates also serve as reinforcing plates for strengthening the rigidity of the entire chassis. On the outside, the front panel is 10-mm thick, while the side panels and top panel are made of 6-mm-thick alumite-treated aluminum plates. They have also improved the rigidity and vibration resistance. The insulators that support the chassis are made of cast iron with excellent signal attenuation characteristics. All in all, the above parts and materials enhance the quality of internal signals and eliminate the effects of external vibrations at the highest levels.
Intelligent Phono EQ
The Intelligent Phono EQ mounted in the SU-R1000 uses sound-quality improvement DSP technology that Technics has accumulated through the development of LAPC, to deliver high sound quality not possible with analogue Phono-EQ. This technology consists of three parts: 1. Accurate EQ Curve, 2. Crosstalk Canceller and 3. Response Optimizer. These functions can be turned ON/OFF to suit the user’s preference.
Input and output terminals made of meticulously selected high-quality parts
- Speaker terminals designed to allow connection of extra-large-diameter speaker cables
- Y-lug terminals for ensuring reliable cable connection
- Neutrik-manufactured analogue balance input terminals and PHONO XLR input terminals (exclusively for MC)
- Analogue input terminals with gold-plated, machined brass parts
Technics’ refined design
- Attractive front panel embellished with high-quality hairline surface finish and equipped with an iconic, large dual-needle meter
- Volume dial and selector knob made of parts machined from solid aluminum blocks and spin-finished
Accurate EQ Curve – Made possible by hybridanalogue/digital circuitdesign
An accurate EQ curve is achieved by a hybrid analogue-digital system. The high-gain low-pass filter (LPF) performs analogue processing, while high frequencies are raised after the A/D conversion. The use of the 40-dB LPF(Low-pass filter) in the analogue region suppresses bit loss during digital filter processing, and high frequencies are raised with high accuracy in the digital region to achieve a high S/N ratio.
Crosstalk Canceller - Formeasurement and improvement of crosstalk characteristics unique to each cartridge
This function measures the crosstalk characteristic of the installed cartridge by using the crosstalk-measuring signal recorded on the Calibration Record bundled with the SU-R1000. It then performs reverse correction using the built-in DSP to achieve significant improvement of the crosstalk characteristic. This results in a more precise sound image and a wider sound ambience.
PHONO Response Optimizer - For correction of disturbance in cartridge frequency characteristics
This function measures the frequency characteristics of the installed pickup cartridge by using a TSP (Time-Stretched Pulse) signal recorded on the bundled Calibration Record, and corrects characteristic disturbances. It corrects the effect of impedance matching between the pickup cartridge and the phono equalizer to reveal the true sound quality of the cartridge. This technology aims to improve sound quality by avoiding a selector, such as a switch in the high-sensitivity phono input line, for the removal of the possibility of noise disturbance.
*Although the record may be warped depending on the production method or its characteristics, this record passed the test for proper signal reading and is shipped.*The record may be warped depending on the storage environment in your house. Please note that a badly warped record may not only disturb the measurement but also hurt the cartridge.
| Parameter | Specification |
|---|---|
| Physical Specifications | |
| Dimensions (W x H x D) | 430 mm x 191 mm x 459 mm (16-15/16 x 7-17/32 x 18-3/32 inch) |
| Weight | Approx. 22.8 kg (Approx. 50.3 lbs) |
| Technics Definitive Design | High-rigidity Cabinet Three-section Configuration |
| Technical Specifications | |
| 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 |
| Output Power | 150W + 150W (1kHz, T.H.D. 0.5%, 8Ω, 20kHz LPF) 300W + 300W (1kHz, T.H.D. 0.5%, 4Ω, 20kHz LPF) |
| FTC Output Power | 150W + 150W (20-20kHz, THD+N: 0.5%, 8Ω) |
| Input Sensitivity / Input Impedance | LINE: 200 mV / 22 kΩ PHONO (MM): 2.5 mV / 47 kΩ PHONO (MC): 300 µV / 100 Ω |
| Frequency Response | 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) |
| Load Impedance | 4 Ω - 16 Ω |
| Analogue Input Terminal | LINE x2 (LINE 1, LINE 2) 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 OUT x1 REC OUT x1 |
| Headphone Output | Yes, Stereo Φ6.3mm |
| Support Codec (PCM) | Yes (32, 44.1, 48, 88.2, 96, 176.4, 192, 352.8, 384 kHz / 16, 24, 32 bit) |
| Support Codec (DSD) | Yes (2.8 MHz, 5.6 MHz, 11.2 MHz, 22.4 MHz*) *ASIO Native mode only |
| Power Specifications | |
| Power Supply | AC 120 V, 60 Hz |
| Power Consumption | 220 W |
| Additional Information | |
| Accessories | Remote Control Calibration Record AC Cord Owner's Manual |