Network audio system
WS-A70
With the themes of wood and cloth, this second NEW VINTAGE high-resolution
network audio system is a fusion of tradition and technology that further liberates
audio.
The cabinet enclosure is created with “180° curve processing,” which is difficult to achieve in mass
production. The paneling made with natural walnut is treated with an oil finish to bring out the texture of
the wood itself, giving it a sense of luxury, and the design evokes an attention to detail based in
craftsmanship. Moreover, the speaker grills employee natural materials and carefully-chosen textiles with
expressive designs. This system brings together music and style to enhance your daily life.
The WS-A70 combines traditional technologies with high-quality audio design suitable for the high-resolution
era. This next-generation audio system also offers new ways to interact with music in the Internet age.
Main functions
● Network audio system combines an amplifier and speakers
● Cabinet utilizes beautiful natural walnut paneling
● Replaceable speaker grills use textiles made by Nuno Corporation (sold separately)
● High-quality sound through the combination of coaxial two-way speakers and passive radiators
● Diverse input options include Wi-Fi/wired LAN, AirPlay, Bluetooth®, USB flash drives and external inputs
● Plays high-resolution audio sources up to 5.6MHz DSD and 192kHz/24-bit PCM
● High-quality audio streaming with “Chromecast built-in,” which functions with Wi-Fi
● Support for TuneIn, Spotify, Google Play Music, AWA and other music streaming services
● Play high-resolution audio sources stored on media servers including NAS and PCs, as well as
smartphones, tablets and USB flash drives
● Easy operation using the TEAC HR AirCast network control app, which supports high-resolution audio
sources
Brand TEAC
Series NEW VINTAGE
Model WS-A70
Color Walnut (WA)
Dimensions 590 × 221 × 186 mm / 2.3 kg
Package dimensions 740 × 365 × 380 mm / ?? kg
■ Product overview
The WS-A70 combines traditional technologies with high-quality audio design suitable for the high-resolution
era. This next-generation audio system offers new ways to interact with music in the Internet age.
We sought to realize a simple but never boring design by shaping beautiful natural walnut paneling with
difficult to achieve curves. The left and right speakers incorporate TEAC original coaxial two-way units and
rear passive radiators that reproduce rich and natural low frequencies. As a result, in a compact size we
have realized high audio quality equal to that of a serious stereo system.
The speaker grills use textiles made by Nuno Corporation, which is managed by famous Japanese textile
designer Reiko Sudo. We want you to enjoy the fusion of tradition and technology that is the goal of the New
Vintage series.
As to be expected in this age of network audio, these systems support a wide variety of digital sources. The
extensive network streaming playback functions include the Spotify Internet streaming service for highquality audio, Google Play Music, which supports cloud services, and TuneIn, which enables listening to
Internet radio from around the world for free. Along with streaming, you can listen to wireless playback of
music from smartphones and easily enjoy audio libraries of various formats, including audio files saved on
music servers on the same network and USB flash drives. The playback of these audio sources can be
easily controlled using the dedicated free TEAC HR AirCast app for iOS and Android devices. With it, you
can work with your own libraries as you like, including track selection, volume adjustment and playlist
creation. A multiroom function also allows you to control multiple WS-A70 systems simultaneously. You can
share your libraries throughout your home, eliminating the need to prepare audio sources in each room.
● Curved cabinet with beautiful natural walnut material
Starting with a solid cabinet and core materials that thoroughly eliminate
unwanted resonance and standing waves, we used natural walnut paneling
with beautiful grain patterns, finishing it with natural oil and employing a
challenging process to give it a curved shape. Our goal was to create a simple
design that never loses interest.
Moreover, the replaceable speaker grill is attached without using catch pins,
so the design of the WS-A70 can be enjoyed without any disruption to its
beautiful finish even when the grill is removed.
● Replaceable speaker grills that use textiles made by Nuno Corporation (sold separately)
For the replaceable speaker grills, we have prepared options clad in textiles
made by Nuno that fuse tradition and technology as is appropriate for this NEW
VINTAGE line. Led by famous Japanese textile designer Reiko Sudo, Nuno
Corporation creates textiles that infuse the beauty of traditional techniques even
into modern expressions.
The plan is to increase the line up of speaker grills to adorn the WS-A70 with
new designs added by Nuno to the collection every season.
About Nuno Corporation
Textile designer Reiko Sudo established this company in 1984 with the goal
of combining traditional dyeing and weaving techniques with modern
technologies to create textiles that are suited to the present age. Together with
Nuno Works, the corporation is creating original textiles that combine new
materials and techniques at dying and weaving sites but survive throughout
Japan. Numerous works that they have created are in the permanent
collections of major art museums in countries around the world, and many
others decorate well-known commercial facilities and public spaces.
● Rotary aluminum control dial enables intuitive operation
The interface adopted has a new feel that is suitable for new ways of
experiencing music offered by network audio. The simple menu buttons and
rotary control dial enable intuitive operation.
● Various network sources supported.
This system enables a vast range of musical experiences. In addition to the
Spotify music streaming service known for its high audio quality and Google
Music Play that supports cloud services, you can also use TuneIn, which allows you to enjoy over 120,000
Internet radio stations and 5.7 million podcast episodes from around the world, along with apps that support
Chromecast. In particular, Spotify and Google Play Music, which provide different playlists for different
situations, will keep playing curated tracks suitable for work, dining and other lifestyle scenes. Not only do
these functions eliminate the need to select tracks, they are also excellent for playing background music at
parties, for example, when used in combination with the multiroom function of the WS-A70.
Moreover, in addition to music servers on the same network (NAS
1
, computer2 set up as a media server),
you can also play music files saved on smartphones and tablets. Numerous playback possibilities are
created not only by gapless playback and repeat playback but also by shuffle playback.
By registering for a paid Spotify Premium account monthly subscription for this music streaming
service, you can choose from 40 million songs and listen to ones you like at high audio quality. In
addition, you can also use Spotify for free with playlists they provide with different themes.
With the paid subscription streaming service, you can listen to songs you like from a selection of 3.5
million songs. You can also use this service for free to store your own music files in the cloud (a
personal server on the Internet) for listening.
In addition to being able to listen to over 120,000 Internet radio stations and 5.7 million podcast
episodes from around the world for free, paid plans allow you to listen to unlimited numbers of
audiobooks and live broadcasts of professional sports from other countries, for example.
1
To enable a WS-A70 to access an NAS as a music server, the NAS must have its DLNA
function set to on. For details, refer to the operation manual of the hard disk that supports
NAS.
2
To enable a WS-A70 to access a computer as a media server, Twonky server software must
be installed on the computer
● Support for Bluetooth® and AirPlay
With support for Bluetooth® and AirPlay, you can also enjoy
using your favorite music playback apps with direct wireless
transmission to the WS-A70.
● High-resolution audio playback from USB flash drives
Using the USB port on the back of the system, you can play all kinds of music files, including high-resolution
audio sources, stored on USB flash drives. This feature allows you to easily enjoy
the music that you have without using a music server or
Internet streaming service.
● TEAC HR AirCast network control app supports high-
resolution audio sources
We have prepared a free dedicated app that allows you
to control all the playback functions of the WS-A70 from
iOS and Android devices. Along with streaming playback
of audio files, including high-resolution sources, stored
on the iOS or Android device, you can also use this to
listen to various Internet services. These include Spotify,
Google Play Music and other subscription music streaming services, as well
as TuneIn Internet radio, which you can enjoy for free. We have employed a straightforward layout that can
be used intuitively.
● Two-way coaxial speaker in the TEAC tradition
We incorporated 2.5cm/13cm coaxial units that fully utilize
TEAC two-way coaxial speaker technologies derived
directly from our speakers, including the noted S-300,
which has earned high praise as a compact bookshelf
speaker for high-quality component systems, and the
modern S-300HR. The coaxial arrangement of the central
tweeter that reproduces high frequencies and the woofer
that reproduces low frequencies ensures outstanding
soundstage positioning without delays between high and low frequencies from every listening position. We
have applied our expertise not only to the speaker units, but also to numerous details, including the structural
design and volume calculations of the system cabinet that encloses them. We designed the WS-A70 speaker
enclosure to be completely isolated from the amplifier, power supply, control circuit board and other
components. This is exactly the same independent structure that is used in the speaker cabinets of ordinary
component stereo systems.
Moreover, the placement of the passive radiators in the back of the system along the same axes as the
speaker units enables the generation of rich natural low frequencies equivalent to speaker units with
apertures that are a size larger.
● 38W+38W maximum output with ICEpower Class-D power amplifier
This system uses the same Class-D amplifier made by ICEpower A/S that
we use in the TEAC NR-7CD flagship model. This amp is able to further
enhance the outstanding soundstage positioning of the coaxial two-way
speakers. Moreover, this amp generates almost no heat because its energy
conversion rate is high, allowing it to operate efficiently inside the closed
cabinet.
● AK4490 D/A converters that are highly evaluated for audio quality
The VERITA AK4490 D/A converters, which are made by Asahi Kasei
Microdevices, used in these systems support audio sources of high
resolutions up to 5.6MHz DSD and 192kHz/24-bit PCM. These
converters can process the great amounts of data in high-resolution
audio sources with room to spare, and reproduce smooth analog
waveforms that are close to the original sounds.
● Optical digital and RCA inputs
This system supports both digital (rectangular optical connector) and analog (RCA) input from other devices.
For example, you could connect a record player (that has built-in phono EQ) or a portable audio player to
the analog input connectors and a CD player or TV audio output to the digital input connector.
● Bass EQ (Flat/Enhanced) to adjust low-frequency volume
Along with the combination of coaxial two-way speakers and passive radiators, this system has a Bass EQ
circuit for the production of pleasant natural sound even during low-volume playback. This can be turned on
and off as you like.
● Organic EL display with dimmer
The built-in organic EL display has excellent legibility. Along with the high contrast of the organic EL, the
use of a large font makes the display easy for everyone to read. The brightness can be set to one of four
levels to suit the atmosphere of your room. (The brightness of the ring around the control dial is also linked
to this setting.)
● Sleep timer (15, 30, 45, 60, 90 or 120 minutes)
The sleep timer, which can be set up to 120 minutes, allows you to drift to sleep while listening to your
favorite music. This can be set using the system's controller.
● Automatic power saving function
The automatic power saving function will put the unit into standby if no operation occurs and sound input
stops for a long time (20 minutes). The automatic power saving function can be enabled or disabled as
necessary. Moreover, according to the system connections, one of two modes can be chosen to wake the
unit from standby automatically.
PS1: The unit will turn on when playback starts from a smartphone or tablet or audio is input
through the Digital In or Line In connectors.
PS2: The unit will turn on automatically only when playback starts from a smartphone or tablet.
This mode reduces standby power consumption more than PS1 mode.
■ List of features
● Network audio system combines an amplifier and speakers
● Curved cabinet with paneling made of beautiful natural walnut material with an oil finish
● Replaceable speaker grills use textiles made by Nuno Corporation (sold separately)
● TEAC HR AirCast network control app supports high-resolution and is available free
● Playback of audio sources with high resolutions up to 5.6MHz DSD and 192kHz/24-bit PCM possible
● Wi-Fi and wired LAN supported
● Built-in Bluetooth® receiver for direct reception from smartphones and tablets
● AirPlay supported
● Spotify, Google Play Music and other subscription audio streaming services supported
● TuneIn Internet radio reception
● Chromecast-compatible apps supported
● Multiroom support and display names of WS-A70 units on a network can be customized
● Streaming playback of audio stored on music servers, including NAS and PC servers
● Wireless playback of music files stored on smartphones and tablets
● High-resolution audio source playback from USB flash drives
● Gapless, shuffle and repeat (one song/all songs) playback options
● Playlist creation and playback
● Amplifier and speaker enclosure sections completely independent inside the cabinet
● TEAC original coaxial two-way speakers
● Passive radiators in the back of the system reproduce rich and natural low frequencies
● Class-D power amplifier made by ICEpower has an established reputation
● AK4490 D/A converter made by Asahi Kasei Microdevices
● Optical digital and analog line inputs
● Bass EQ (Flat/Enhanced) adjusts volume of low frequencies
1
● Sleep timer (15, 30, 45, 60, 90 or 120 minutes)
● Organic EL display with dimmer
● Rotary aluminum control dial enables intuitive operation
● Automatic power saving function (can be enabled/disabled)
● Mode for waking up from standby can be selected
● Fanless design maintains quiet environment
● Product compliant with RoHS
1
Each streaming service requires separate account registration.
2
Use of the WS-A70 requires a smartphone or tablet with the TEAC HR AirCast (iOS or Android) app
installed, and a wireless LAN (Wi-Fi) connected to the Internet.
■ Specifications
Network section
Internet 100BASE-T
Wireless LAN specifications IEEE 802.11 a/b/g/n/ac
Frequency bands 2.4GHz, 5GHz
Security WEP 64/128-bit, WPA, WPA-PSK, WPA2, WPA2-PSK, IEEE802.11i
Bluetooth
Bluetooth version 4.1
Output Class 2
Supported profiles A2DP, AVRCP
Codecs AAC, SBC
USB section
Compatible USB devices USB mass storage device class
Interface USB 2.0 (High speed)
File systems FAT, FAT32, NTFS
USB output voltage DC 5V
USB power supply current 500mA maximum
Music playback formats and protocols*
DSD
Extensions .dsf, .dff
Sampling frequencies 2.8, 5.6 MHz
WAV
Extension .wav
Sampling frequencies 8, 11.025, 16, 22.05, 32, 44.1, 48, 88.2, 96, 176.4, 192 kHz
Bit depths 8, 16, 24
WAV files include uncompressed PCM digital audio.
FLAC
Extension .flac
Sampling frequencies 8, 11.025, 16, 22.05, 32, 44.1, 48, 88.2, 96, 176.4, 192 kHz
Bit depths 8, 16, 24
ALAC (Apple Lossless)
Extensions .alac, .m4a, .mp4
Sampling frequencies 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48, 88.2, 96, 176.4, 192 kHz
Bit depths 16, 24
AAC
Extensions .aac, .m4a, .mp4, .3gp, .3g2
Standards MPEG-2/MPEG-4 Audio
Sampling frequencies 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48, 88.2, 96 kHz
Bit rates 8–320 kbps and VBR
MP3
Extension .mp3
Standards MPEG-1/MPEG-2 Audio Layer-3
Sampling frequencies 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48 kHz
Bit rates 8–320 kbps and VBR
OGG Vorbis
Extension .ogg
Standards MPEG-1/MPEG-2 Audio Layer-3
Sampling frequencies 8, 11.025, 16, 22.05, 32, 44.1, 48, 88.2, 96, 176.4, 192 kHz
Bit rate 48–500 kbps and VBR
®
section
This unit cannot play incompatible files.
* These are formats that can be played back via a network or from USB flash drives. However, some formats and sampling
frequencies might not be playable if the server does not support them.
Amplifier section
Maximum output 38W+38W (6Ω, THD 10%, JEITA)
Rated output 31W+31W (6Ω, THD 1%, JEITA)
Speaker section
Format Passive radiator
Front Two-way coaxial × 2
Low-frequency 13cm paper cone
High-frequency 2.5cm titanium dome
Rear 13cm passive radiator × 2
Playback frequency range 55 Hz – 45 kHz
Audio inputs
Optical digital
Connector type OPTICAL (rectangular) × 1
Supported format IEC-60958-3 (S/PDIF)
Sampling frequencies 44.1, 48, 88.2, 96, 176.4 and 192 kHz
Supported bit depths 16, 24
Analog line inputs
Connector type RCA pin × 1 pair
Maximum input level: 2.0 Vrms
Input impedance 20 kΩ
General
Power AC 100V, 50/60Hz
Power consumption 35 W
Maximum external
dimensions (W×H×D) 590 × 221 × 235 mm (including protrusions)
Weight 10.0 kg
Included items
Power cord × 1
Wireless LAN antennas × 2
Quick Start Guide (network connection)
Owner's Manual (with warranty)
■ Rear panel
■Optional Nuno grilles
1 Colorfield Painting
Cotton 100%
2 Fuhyogun (Pack Ice)
Silk 84% Rayon 16%
3 Seed Beads
Wool 100%
4 Kibiso Nagi
Silk 100%
5 Ryusui
Silk 83% Washi 17%
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