Technics SU-R1000 Reference Class Stereo Integrated Amplifier (Silver)


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SKU: SU-R1000 Silver
Brand: Technics


Stereo Integrated Amplifier SU-R1000

Technics continues to pursue the ideal sound by challenging
new sonic dimensions realized by a full digital amplifier.

Magnificent energy and dynamic sound

A Technics full-digital amplifier that has evolved and soared to new heights

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 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.

ADCT (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.

Assuring low-noise, stable power supply output

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 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. This
prevents the decrease of regulation resulting from the fixed switching
frequency and impedes the mixing of noise component 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.

Signal input section optimally designed for high-purity
sound reproduction.

Development commitment to create premium sound quality.

High-grade Digital/Analog I/O Circuit

The phono input section and analogue input section feature a
full-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
minimum effect of noise. 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 sources.

High Rigidity Chassis and Design

The rigidity of the chassis has been enhanced extensively to
suppress the enclosure vibration that 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.
Not only the upper and lower decks but also individual circuit blocks are
separated from one another by steel shield plates. 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 highest

Input and output terminals made of meticulously selected
high-quality parts

  • Speaker
    terminals designed to allow connection of extra-large diameter speaker
  • 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

Fusion of analogue technologies and proprietary digital

Technics’ new technologies introduce breakthroughs to the world of analogue

Intelligent Phono EQ

The Intelligent Phono EQ mounted in the SU-R1000 utilizes
the sound quality improvement technology for DSP, which Technics has
accumulated through the development of LAPC, in order to realize 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.

Accurate EQ Curve – Made possible by hybrid
analogue/digital circuit design

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 the 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 – For measurement and improvement of
crosstalk characteristic 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 characteristics
disturbance. 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 a badly warped record may not only disturb the measurement but also
hurt the cartridge.

Accurate Digital Technology
JENO Engine (Jitter Elimination and Noise-shaping

LAPC (Load Adaptive Phase Calibration)

Advanced Speed Silent Power Supply

Battery Driven Clock Generator

Noiseless Signal Technology

Advanced Speed Silent Power Supply

Advancement of Power Supply

Technics Definitive Design
High-rigidity Cabinet

Three-section Configuration

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

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

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

Headphone Output
Yes, Stereo Φ6.3mm

USB 2.0 high-speed ,USB Audio Class 2.0, Asynchronous mode

Support Codec
PCMYes (32, 44.1, 48, 88.2, 96, 176.4, 192, 352.8, 384 kHz /
16, 24, 32 bit)
DSDYes (2.8 MHz, 5.6 MHz, 11.2 MHz, 22.4 MHz* *ASIO Native
mode only)

Power Supply
AC 120 V ,60 Hz

Power Consumption
220 W

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

Approx. 22.8 kg

Approx. 50.3lbs

Remote Control, Calibration Record, AC Cord,
Owner’s Manual

Additional information

Weight 0.00000000 lbs


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