Premium All-in-One Audio Amplifier
SU-C550

All-in-one network CD stereo amplifier assembled under perfect harmony of HiFi and stylish in truly essential compact design.

JENO Engine
(Jitter Elimination and Noise-shaping Optimization)

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 a newly-developed and original high-precision PWM (Pulse Width Modulation) conversion circuit, optimising the noise-shaping speed, the degree and requantisation error, and the PWM gradation, in order to convert high-resolution signals to PWM without causing any damage to the dynamic range. These new technologies enable new Technics digital amplifier designs to reproduce the natural and delicate nuances of music.

Concept of JENO Engine
Block Diagram of Digital Amplifier

LAPC (Load Adaptive Phase Calibration)

LAPC is an original Technics speaker load adaptive technology. It measures the amp's frequency amplitude phase characteristics with speakers connected to the unit, and performs digital signal processing to achieve the ideal impulse response.

Concept of LAPC
Gain and Delay by Conventional Amplifier / LAPC

Twin Power Supply Circuit System

Regular power supplies use one transformer to supply power to the amp, CD drive, and digital circuits, and so if there is any load fluctuation or if noise occurs on a circuit, other circuits are affected, which results in degradation of the sound quality. This power supply system includes independently installed switch mode power supply circuitry for the amp and the other circuits, which eliminates mutual interference, thereby reducing degradation of sound quality caused by noise or power supply fluctuations.

Battery Driven Clock Generator

In digital audio, improvement in the precision of the clock, which serves as the reference for operation, is extremely important for achieving high sound quality. But noise from the power supply for the clock circuit can become an issue. Technics employs the battery-operated clock circuit that was used successfully in our analogue amps in the past. As a result, clock precision was improved, realising a more defined sound presence and superb spatial expression.

Digital Noise Isolation Architecture

The SU-C550 receives audio signals from various digital content devices, such as NAS, PC, USB memory devices and digital interfaces. Because many of the digital content storage media are designed for use with PCs, low noise – which is required for pure audio reproduction – was not the main design concern. To handle these often noisy sources, the SU-C550 isolates the interfaces for these media to exclude external electrical interference, and also employs a jitter remover(includes JENO-LSI), thus offering clear and stable sound, free from noise and distortion.

Concept of Digital Noise Isolation Architecture

Wi-Fi Capability

Connection is possible to a home network via a LAN cable or wireless configuration (IEEE802.11a/b/g/n). The built-in Wi-Fi function lets you easily connect to the network without routing a LAN cable even if your PC or broadband router is set up in another room.

Bluetooth® Capability

The Bluetooth® function allows easy streaming from a Bluetooth®-ready device.

TIDAL, Spotify and vTuner Supported

In addition to DLNA and USB playback, TIDAL, Spotify* Connect and vTuner* are supported. For vTuner, use the Technics Music App to select stations and listen to a wide variety of broadcasts.

TIDALSpotifyvTuner

*Compatible music streaming services will be supported sequentially through firmware updates.
*Network content services are operated by their respective service providers, and service may be discontinued either temporarily or permanently without notice. Some content may not be available in the country in which you reside.
*Registration/subscription may be required. Fees may apply.

SU-C550
Premium All-in-One Audio Amplifier

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Accurate Digital Technology
JENO Engine (Jitter Elimination and Noise-shaping Optimisation)
LAPC (Load Adaptive Phase Calibration)(w/o calibration function)
Battery Driven Clock Generator
Noiseless Signal Technology
Digital Noise Isolation Architecture
Output Power
20 W + 20 W (1 kHz, T.H.D. 0.5 %, 8 , 20 kHz LPF)
40 W + 40 W (1 kHz, T.H.D. 0.5 %, 4 , 20 kHz LPF)
THD+N
0.05 % (1 W at 1 kHz, 8 , 20 kHz LPF)
Load Impedance
4 Ω - 16 Ω 
Digital Input Terminal
Optical Digital, USB-A, USB-B
Disc Compatibility
Audio CD, CD-R/CD-RW (CD-DA, Discs recorded and finalised on recording devices)
USB-A
iPod/iPhone/iPad
Yes
Support Codec
WAVYes (32, 44.1, 48, 88.2, 96, 176.4, 192 kHz / 16, 24 bit)
FLACYes (32, 44.1, 48, 88.2, 96, 176.4, 192 kHz / 16, 24 bit)
DSDYes (2.8224 MHz, 5.6448 MHz)
AIFFYes (32, 44.1, 48, 88.2, 96, 176.4, 192 kHz / 16, 24 bit)
ALACYes (32, 44.1, 48, 88.2, 96, 176.4, 192 kHz / 16, 24 bit)
AACYes (32, 44.1, 48, 88.2, 96 kHz / 16-320 kbps)
WMAYes (32, 44.1, 48 kHz / 16-320 kbps)
MP3Yes (32, 44.1, 48 kHz / 16-320 kbps)
USB-DAC (USB-B)
USB Audio Class Specification
USB Audio Class 2.0, Asynchronous Mode
Support Codec
DSCYes (2.8224 MHz, 5.6448 MHz)
PCMYes (32, 44.1, 48, 88.2, 96, 176.4, 192 kHz / 16, 24, 32 bit)
DLNA Support Codec
WAVYes (32, 44.1, 48, 88.2, 96, 176.4, 192 kHz / 16, 24 bit)
FLACYes (32, 44.1, 48, 88.2, 96, 176.4, 192 kHz / 16, 24 bit)
DSDYes (2.8224 MHz, 5.6448 MHz)
AIFFYes (32, 44.1, 48, 88.2, 96, 176.4, 192 kHz / 16, 24 bit)
ALACYes (32, 44.1, 48, 88.2, 96, 176.4, 192 kHz / 16, 24 bit)
AACYes (32, 44.1, 48, 88.2, 96 kHz / 16-320 kbps)
WMAYes (32, 44.1, 48 kHz / 16-320 kbps)
MP3Yes (32, 44.1, 48 kHz / 16-320 kbps)
Headphone Output
Yes (Ø3.5 mm)
Ethernet Interface
LAN (100 Base-TX / 10 Base-T)
Wi-Fi
IEEE 802.11a/b/g/n, 2.4 GHz Band (1-13 Channel),
5 GHz Band (36, 40, 44, 48 Channel)
AirPlay
Yes
Bluetooth® (Support codec)
Yes (AAC, SBC)
TIDAL / vTuner / Spotify
Yes* / Yes* / Yes*
Power Supply
AC220-240 V, 50 Hz / 60 Hz
Power Consumption
50 W
Dimensions (W x H x D)
360 x 91 x 258 mm
Weight
Approx. 3.9 kg
Accessories
Remote Control, AC Cord, Owner's Manual, Network Connection Guide, Batteries for Remote Control

*Compatible music streaming services will be supported sequentially through firmware updates.
*Network content services are operated by their respective service providers, and service may be discontinued either temporarily or permanently without notice. Some content may not be available in the country in which you reside.
*Registration/subscription may be required. Fees may apply.

  • dlna certified
  • AirPlay
  • WiFi Certified
  • Wi-Fi Protected Setup
  • Bluetooth
  • Made for iPod/iPhone/iPad
  • Compact disc

The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Panasonic Corporation is under license. Other trademarks and trade names are those of their respective owners.
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.
Wi-Fi®, Wi-Fi CERTIFIED™ and Wi-Fi Protected Setup™ are marks of the Wi-Fi Alliance.
DLNA, the DLNA Logo and DLNA CERTIFIED are trademarks, service marks, or certification marks of the Digital Living Network Alliance.

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