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Network Audio Control Player SU-R1

SU-R1

Reference Class Audio Player

Minimises noise and achieves maximum silence, building on the digital source reproduction technology and knowhow accumulated over many years.

Features

Technics Digital Link
(Original Digital Signal Transmission)

Concept of Technics Digital Link, Block Diagram of Technics Digital Link between SU-R1 and SE-R1
Some systems use a digital link between source component and pre-amplifier, keeping the digital signal pure as long as possible: Technics Digital Link goes further. It has eliminated the volume control function from the pre-amplifier, and instead transmits the volume control information, together with the audio signal, directly to the power amplifier in digital form. The power amp's jitter reduction circuit reduces any effect of jitter in signal transmission, then performs the volume control immediately before the PWM converter.
This new sound transmission interface, Technics Digital Link, supports audio signals and also eradicates inter-channel effects by transmitting the left and right channel signals separately. Technics Digital Link has achieved an ideal amplifier configuration, minimising any degradation between the pre-amplifier and the power amp, and resulting in superb stereo separation and reproduction of even the most subtle signals. The result is a more detailed and dynamic sound.

Digital Noise Isolation Architecture

Concept of Digital Noise Isolation Architecture, Photo
The SU-R1 Network Audio Control Player receives audio signals from various digital content devices, such as NAS, PCs, USB memory devices and digital interfaces. Many of these digital content storage systems were originally designed for use with PCs, so low noise – which is required for pure audio reproduction – was never a main design concern. To handle these often noisy sources, the SU-R1 isolates the interfaces for these media to exclude external electrical interference, and also employs a jitter remover, thus offering clear and stable sound, free from noise and distortion.

Separated Analog/Digital Power Supply

Photo of Power supply
Dedicated low-noise R-core transformers* with excellent regulation characteristics are used for the analogue and digital circuits, and the power supply is further isolated to exclude any digital noise from the analogue circuits.
*R-core transformer is a trademark of Kitamura Kiden Co., Ltd.

Technics Music App
for Smartphones

Photo of Technics Music Apps

The Technics Music App enables you to select a music source and playback equipment, and create playlists easily and comfortably on the screen of a tablet or smartphone. The Music App screen displays the music stored on a connected DLNA-compatible server, content stored on the device running the App, and music files on connected USB memory devices, giving you integrated playback control. Used with the SE-R1 or SU-C700, the Technics Music App not only allows you to control the volume and playback operations, but also lets you adjust the Bass, Mid and Treble levels.

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Ultra Low Distortion Oversampling Digital Filter

Graph of Ultra Low Distortion Oversampling Digital Filter
An oversampling digital filter, incorporating an original Technics algorithm, shifts digital noise to -160 dB or lower, thus moving any potential distortion far beyond hearing and leaving a rich, detailed sound.

High Quality Analog I/O Circuit

Photo
The SU-R1 features Digital Noise Isolation Architecture, a high-precision clock generator and independent high-precision Burr-Brown PCM1792 (Texas Instruments) digital to analogue converters for left and right channels. The circuits after the D/A converter are of a balanced configuration, using non-magnetic film resistors, low equivalent series resistance capacitors and a high-quality LME49720 (Texas Instruments) OP amp. Analogue inputs are converted to digital with the high-precision Burr-Brown PCM4220 (Texas Instruments) 192-kHz/24-bit A/D converter, allowing high-purity sound with digital and analogue sources alike.

High Res Re-master

Graph of High Res Re-master, Graph of High Res Re-master
Technics has developed signal processing to increase both sampling frequency and bit-depth: the High Res Re-master system converts audio signals to high-resolution at up to 192 kHz/32 bits, to bring the listener closer to the original music.

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Specs

Photo of Network Audio Control Player SU-R1

Size and Weight

Height
120mm
Width
480mm
Depth
391mm
Weight
17kg

AirPlay, iPad, iPhone, and iPod touch are trademarks of Apple Inc., registered in the U.S. and other
countries.
"Direct Stream Digital", DSD and their logos are trademarks of Sony Corporation.
Windows Media and the Windows logo are trademarks or registered trademarks of Microsoft
Corporation in the United States and/or other countries.
MPEG Layer-3 audio coding technology licensed from Fraunhofer IIS and Thomson.

Digital Noise Isolation Architecture

Virtual Battery Operation

Technics Digital Link

Separated Analog/Digital Power Supply

High Quality Analog I/O Circuit

High Rigidity Metal Double Chassis

Noiseless Signal Technology

  • Digital Noise Isolation Architecture
    Virtual Battery Operation
    Ultra Low Distortion Oversampling Digital Filter
    High Res Re-master
    Optimally Activated Circuit System
    Technics Digital Link
    Separated Analog/Digital Power Supply
    High Quality Analog I/O Circuit
    High Rigidity Metal Double Chassis

Technics Definitive Design

  • Aluminium Plain Miter Joint
    Multi Control Knob
    Symmetric Structure

Frequency Response

  • 2 Hz - 90 kHz (-3 dB)

Dynamic Range (IHF-A)

  • BALANCED 118 dB, UNBALANCED 115 dB

Signal to Noise Ratio (IHF-A)

  • BALANCED 118 dB, UNBALANCED 115 dB

THD+N

  • 0.0008 % (1 kHz, 0 dB)

Analogue Input Terminal

  • LINE x 2

Digital Input Terminal

  • AES/EBU Digital x 1, Coaxial Digital x 3, Optical Digital x 1, USB-A, USB-B

USB-A

  • iPod/iPhone/iPad

    • Yes
  • Support Codec

    • WAV
      • Yes (32, 44.1, 48, 88.2, 96, 176.4, 192 kHz / 16, 24 bit)
    • FLAC
      • Yes (32, 44.1, 48, 88.2, 96, 176.4, 192 kHz / 16, 24 bit)
    • DSD
      • Yes (2.8224 MHz, 5.6448 MHz)
    • AIFF
      • Yes (32, 44.1, 48, 88.2, 96, 176.4, 192 kHz / 16, 24 bit)
    • ALAC
      • Yes (32, 44.1, 48, 88.2, 96 kHz / 16, 24 bit)
    • AAC
      • Yes (32, 44.1, 48, 88.2, 96 kHz / 16-320 kbps)
    • WMA
      • Yes (32, 44.1, 48kHz / 16-320kbps)
    • MP3
      • Yes (32, 44.1, 48kHz / 16-320kbps)

USB-DAC (USB-B)

  • USB Audio Class Specification

    • USB Audio Class 2.0, Asynchronous Mode
  • Support Codec

    • DSC
      • Yes (2.8224 MHz, 5.6448 MHz)
    • PCM
      • Yes (32, 44.1, 48, 88.2, 96, 176.4, 192, 352.8, 384 kHz / 16, 24, 32 bit)

DLNA Support Codec

  • WAV

    • Yes (32, 44.1, 48, 88.2, 96, 176.4, 192 kHz / 16, 24 bit)
  • FLAC

    • Yes (32, 44.1, 48, 88.2, 96, 176.4, 192 kHz / 16, 24 bit)
  • DSD

    • Yes (2.8224 MHz, 5.6448 MHz)
  • AIFF

    • Yes (32, 44.1, 48, 88.2, 96, 192kHz / 16, 24bit)
  • ALAC

    • Yes (32, 44.1, 48, 88.2, 96 kHz / 16, 24 bit)
  • AAC

    • Yes (32, 44.1, 48, 88.2, 96 kHz / 16-320 kbps)
  • WMA

    • Yes (32, 44.1, 48 kHz / 16-320 kbps)
  • MP3

    • Yes (32, 44.1, 48 kHz / 16-320 kbps)

Analogue Output Terminal

  • UNBALANCED x 1, BALANCED x 1

Digital Output Terminal

  • Technics Digital Link x 1, AES/EBU Digital x 1, Coaxial Digital x 1, Optical Digital x 1

Headphone Output

  • Yes

AirPlay

  • Yes

Ethernet Interface

  • LAN (100 Base-TX /10 Base-T)

Power Supply

  • AC220-240V, 50Hz/60Hz

Power Consumption

  • 60 W

Dimensions (W x H x D)

  • 480 x 120 x 391 mm

Weight

  • Approx. 17 kg

Accessories

  • Remote control, AC cords, Operating Instructions

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