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SONY - NW-A30 SERIES
Full Specifications & Features
FEATURES
Minimal design
Inspired by simplicity, the NW-A30 Series is a beautiful example of ‘less is more’. With clean lines and a simple shape, it’s designed to become part of your personal style.
An intuitive touch
The high quality 7.9cm (3.1”) screen is touch-sensitive, allowing you to access functions simply by touching the icon. It’s so intuitive, using it will be second nature.
Get the best out of every track
Enjoy the subtlest nuances of studio-quality sound in higher than CD quality with High-Resolution Audio. Passion for music unites every component from signal to speaker so it feels like the artist is performing right in front of you.
DSD Playback
Experience high quality playback of PCM (Pulse Code Modulation) converted content with the same warm sound of the DSD original.
S-Master HX
The S-Master HX digital amp cuts distortion and noise across a wide range of frequencies for rich, full bodied sound.
DSEE HX
Hear what you’ve been missing. DSEE HX upscales your existing music to near high-resolution quality.
Bluetooth streaming at its best
Enjoy high quality music streaming thanks to LDAC, our premium wireless codec. With 3x the bitrate of standard Bluetooth, you can enjoy a superior listening experience for all your music.
Infinite playlists
The NW-A30 Series has an expandable storage capacity. Simply add a microSD card and you’ll never run out of music.
SPECIFICATION
Dimensions (W x H x D) 55.9 x 97.5 x 10.9 mm
Weight 98g
POWER
Charging Time (full charge) 4 Hours
POWER
Battery Life - Continuous Playback Music 45Hour(MP3 128kbps, NC OFF)
STORAGE MEDIA
Memory Size 16GB
NETWORK CONNECTIVITY
USB Connection Hi-Speed USB(USB 2.0 compliant)
WM-PORT 22 pins
PLAYBACK & DISPLAY
Music Play Mode Normal, Repeat, Shuffle
File Management No
MP3 Yes
WMA (Non-DRM) Yes
WMA (DRM) No
AAC-LC (Non-DRM) No
Linear PCM Yes
PC External Storage Device Yes
Sound Effects 6 Band equalizer
Audio Playback MP3
Display Resolution 800x480 (WVGA)
Display Type TFT colour video display
Drag and Drop Yes
DSEE HX Yes
Dynamic Normaliser Yes
Equaliser Yes
FM Tuner Yes
High-Resolution Audio High-Resolution Audio
Music Searching Methods All songs, Album, Artist, Genre, Release year, Composer, Playlists, Hi-Res, Recent transfers, Folder, SensMe Channels
Screen Size (inch) 3.1" (7.8 cm)
SOFTWARE
Operating System Sony original OS
System Requirements Microsoft Windows® 8
SOFTWARE
Touchscreen Touchscreen
CONNECTIVITY
Input and Output Terminals WM-PORT
Wireless Capabilities Bluetooth®
FOOTNOTES
Digital Noise Cancelling Yes
Acoustic Research M2
Genuine audiophile oriented music-only portable music player
Comprehensive high resolution media support (WAV, AIFF, FLAC, ALAC, APE, DSD, and DXD)
Audiophile oriented flagship class Burr-Brown PCM1794a DAC
Unleash the full potential of high end headphones with best-in-class built-in headphone amplifier
64GB built-in memory plus flexible storage expansion through Micro SDXC
Up to 9 hours of continuous audiophile-grade high resolution music playback
| Dimensions | Width: 2.76 In x Height: 5.35 In x Depth: .59 In | |
| Weight (Kg/lb) | About 8.5 oz | |
| Battery Type | 4200 mAh, Up to 8.5 hours (PCM) / 6.5 hours (DSD) | |
| Maximum Memory Expansion | Micro SDXC card (Up to 200GB), USB-OTG | |
| CPU | Qualcomm MSM8926 | |
| Digital audio transceiver/clock master | Cirrus Logic CS8422 |
Acoustic Research M20
Rich and Detailed Hi-Fi Sound from Premium BURR-BROWN Hi-RES DAC
Variable Native Sample Rate with Dual Crystal Oscillators
Real Touch of Hi-Fi Sound with Linear Power Supply
Plays Hi-Res Audio Files (FLAC/ALAC/WAV/AIFF/DSD/DXD) on Internal Memory, Micro SDXC card, or Micro USB memory
Built-in Wi-Fi Support and Works with Third Party Music Streaming/Download APPs
| Dimensions | Width: 2.76 In x Height: 5.35 In x Depth: .44 In | |
| Battery Type | 3150 mAh, Up to 16 hours | |
| Memory | 32GB | |
| Maximum Memory Expansion | Micro SDXC card (Up to 200GB) USB-OTG | |
| CPU | Qualcomm MSM8926 | |
| Digital audio transceiver/clock master | Burr-Brown PCM5242 |
AIGO - Z6 HIFI Music Player
Original AIGO Moonlight Z6 Hard DSD MP3 Player HIFI Music Player Dual-Core CPU Come With 32G TF Card And Leather Case
Astell&Kern A&Ultima SP1000
- The ultimate in sound quality, a true high-resolution music player
- First Astell&Kern player to feature an octa-core CPU for outstanding response and performance
- High Definition HD5 display to create the best viewing experience
- Innovative new multi-function volume wheel and stainless steel or copper housing
- The A&ultima SP1000: delivering the ultimate Astell&Kern technology
Ultimate Sound Quality
The latest AK4497EQ dual-DAC design and the upgraded CPU in the SP1000 allows for accurate playback of native 32bit/384kHz audio with no compromise on sound quality. The music is played back, bit-for-bit, just as the artist and engineer intended for it to be heard.
The SP1000 also supports native bit-to-bit DSD playback up to 11.2MHz for the best sound possible.
Get Both High Output and Vivid Sound
Traditional audio has suffered from noise and distortion as power output is increased. Astell&Kern’s advanced audio design and signal management technologies used in the A&ultima SP1000 brings more power output with less noise and minimal distortion.
Vivid Sound Creates a Superior Audible Experience
Independent DACs for the left and right audio channels provide a wider soundstage and better stereo separation.
Each AK4497EQ DAC provides rich and vivid audio reproduction, allowing the listener to enjoy the sound as it was meant to be heard.
Great Performance for the Ultimate Experience
The A&ultima SP1000 is equipped with an octa-core CPU which allows the player to produce the exact musical detail present in the original recording without distortion and provides a quick, lag-free operation.
The A&ultima SP100 features faster booting times, speedy file transfers, lag-free processing and a new intuitive user interface for the ultimate player experience.
Wider Screen for Vibrant Images
The A&ultima SP1000 features a bezel-less design to maximize screen size.
The high-definition HD5 grade display delivers a vibrant and engaging viewing experience. Song and player information is sharp, colorful and easily to read on the larger, brighter screen.
New Intuitive User Interface for the Ultimate User Experience
The A&ultima SP1000 features a revamped interface design which provides music playback from the home screen to give users a more music-centric experience.
By placing the power button on the volume wheel located on the side of the SP1000 instead of on the top, users can control the volume and turn the LCD screen ON/OFF, all with one simple control.
* When the SP1000 is on the home screen, all functions are centered on the music playback screen.
* The SP1000’s user interface provides a simple, minimalist menu design and structure, allowing users to access features and functions quickly and easily.
Faster Charging, Quicker File Transfer
Next generation USB Type-C support allows file transfer speeds up to 10Gbps and supports both data transfer and charging from the same cable.
USB 3.0 protocol transfers data twice as fast when compared to other Astell&Kern players.
Charging with a fast charger (at 9V/1.67A) takes only two hours and allows up to 12 hours of continuous playback.
* The maximum 12 hours of continuous play is based on a 24-bit/96 kHz, FLAC file audio file, with the screen off, at 50% volume level, and power output set at low gain playback.
* A fast charger rated 9V/1.67A or a general charger rated 5V/2A are not included.
Design Concept
The SP1000, the first A&ultima player, is like a natural gemstone carefully refined by professionals.
Knowing that sound is reflected from mass, like light is reflected from a surface; we designed the SP1000 like a gemstone with reflective features on its surface.
The crown-patterned volume wheel on the right corner is similar in appearance to a cut gemstone, which reflects light from various angles.
The sophisticated volume wheel on SP1000 not only delivers visual and textual details with precision, but allows convenient, one finger ON/OFF control and fine volume control with the addition of both push and turn features.
The external chassis of the SP1000 is made of rugged stainless steel that resists aging and external shock. The SP1000 is the ultimate music player, crafted in an artistically designed metallic setting.
Product Comparison
Astell&Kern AK300
Enjoying Music
While succeeding the state-of-the-art DAC and scalability as applied to the AK380 and AK320, the latest model has improved accessibility by being priced at a reasonable level.
AK4490's Single DAC-DAC, DSD-to-PCM Playback, Parametric EQ with 20bands 0.01dB, 200 Femto Second VCXO Reference Clock, Exceptional Expandability, DLNA-based AK Connect App and Metal Touch Sensor Home Button.
AK300 vs. AK320 vs. AK380
24bit 192kHz bit to bit Playback
AK300 is capable of bit-to-bit playback up to 24bit, 192kHz.
32bit audio is downsampled using a sample-rate converter (SRC). In addition, DSD 64/128 can be played back via conversion to PCM.
* 32bit, 384kHz is downsampled to 24bit, 192kHz, and 32bit, 352kHz is downsampled to 24bit, 176kHz for playback.
* DSD 64/128 is converted via DSD-to-PCM to PCM 24bit, 176kHz for playback.
PEQ (Parametric Equalizer)
A parametric equalizer (PEQ*1) was implemented in the AK380 to deliver detailed adjustment of the original sound, and an audio digital signal processor (DSP) was added to aid in this process.
This frees up CPU cycles previously needed for calculating graphic equalizers (GEQ), allowing more detailed and accurate calculations via the dedicated DSP.
The audio DSP expands the existing 10-band, ±0.5 dB graphic equalizer (GEQ*2) to 20-band, ±0.01 dB to more precisely adjust the frequency and gain (dB) as well as more accurately specifying the frequency range via Q value adjustments.
What is Parametric Equalization (PEQ*1)?
Parametric equalization refers to the ability to increase or decrease the volume within the Q value range. A Q value is a frequency range relative to a selected frequency. The frequency range decreases when the Q value increases and vice versa.
What is Graphic Equalization (GEQ*2)?
Graphic equalization divides the audible frequency register into several registers and increases or decreases the level of each register with a volume slider to adjust the respective frequency's characteristics. The switches of the volume slider are connected like a graph to visually determine the frequency characteristics, hence the name "graphic equalizer."
Equipped With a Femto Clock to Deliver True Original Sound
Astell&Kern implemented a voltage-controlled crystal oscillator (VCXO) high-precision clock with a reference jitter value of 200 femto seconds*3.
Femto clocks are commonly used in high-end audio systems, and the clock is measured in high-precision femtosecond units (one quadrillionth of a second).
What is VCXO?
A VCXO, or a voltage-controlled crystal oscillator, is a type of crystal oscillation device that creates oscillation frequencies. External environmental stimuli, which in this case mean voltage inputs, influence the frequency value. Adjustments to the voltage input tunes a precise frequency value.
What is Jitter?
Jitter refers to the undesired deviation in time that occurs in a periodic signal. In this case, jitter is the error that occurs in the reference clock required to perform the sampling in digital audio equipment.
By utilizing a femto clock, the AK300 is able to create a more accurate frequency value and make fine jitter corrections.
As a result, the AK300 faithfully reproduces analog sound closer than ever to the original source when transmitting a digital signal as an analog signal.
USB DAC
The AK300 supports USB DAC functionality.
The AK300 can be connected to a PC or Mac via USB for use as a USB DAC that supports PCM/DSD.
When playing back music stored on a PC or Mac, the Single-DAC is able to deliver richer audio of outstanding soundstage and resolution well beyond the limits of a built-in sound card.
* When using the AK300 as a USB DAC, its PEQ settings are not applied, and output up to 24bit, 96kHz is supported.
* DSD 64/128 is converted via DSD-to-PCM for playback.
AK Connect App
Astell&Kern has further enhanced DLNA functionality via the AK Connect app.
Wireless networking DLNA (version 1.0) connects to a NAS or PC, and is easily controlled with a smartphone or tablet through AK Connect.
Source files on a PC or NAS can be freely transferred and streamed without the hassle of turning on the computer and physically connecting with a cable.
If on the same access point (AP) network, music files on a PC or NAS can be played back via DLNA.
DMP (Digital Media Player)
Finds a list of content on a media server for selection and playback.
DMC (Digital Media Controller)
Finds a list of content on a media server and establishes a connection to a playback-capable device (renderer). By default, a DMC establishes a connection between a media server and media renderer and controls content playback-related operations.
DMS (Digital Media Server = Network Server)
Actually stores the media content to be shared. When connected to a network, the DMS transmits/distributes the media content for other devices to stream or download.
DMR (Digital Media Renderer = Network Player)
Connects to a media server via media controller for content playback.
Pressure-sensitive Metal Capacitive Touch
The AK300 features the same metal touch interface as the AK380 and AK320.
The Metal Touch functions as a home key and
interfaces with the device via pressure-sensitive touches.
More Expandable Options
The AK300 can be expanded to a variety of devices through the micro-USB and balanced audio out ports located at the bottom of the product.
It can be connected with the AMP as well as professional high-impedance headphones for high output and USB for data transfer and charging.
It can also be connected to the Cradle for balanced audio functionality as well as the CD-RIPPER to conveniently rip audio CDs.
Specifications
General Specifications
Model: AK300
Body Color: Midnight Black
Body Material: Aluminum
Display: 4inch WVGA (480 x 800) Touchscreen
Supported Audio Formats: WAV, FLAC, WMA, MP3, OGG, APE(Normal, High, Fast), AAC, ALAC, AIFF, DFF, DSF
Sample Rate: PCM : 8kHz ~ 192kHz (8/16/24bits per Sample)
DSD : DSD64, Stereo / DSD128, Stereo
Output Level: Unbalance 1.98Vrms / Balance 1.98Vrms (Condition No Load)
DAC: AKM AK4490 x1 (Single DAC)
Decoding: Support up to 24bit / 192kHz Bit to Bit Decoding
Input: USB Micro-B input (for charging & data transfer (PC & MAC))
/ Connection Mode : MTP (Media Device)
Outputs: PHONES (3.5mm) / Optical Out (3.5mm) / Balanced Out (2.5mm, only 4-pole supported)
Wifi: 802.11 b/g/n (2.4GHz)
Bluetooth: V4.0 (A2DP, AVRCP, aptX)
Dimensions: 2.95 ”(75.15 mm) [W] x 4.42 ”(112.4 mm) [H] x 0.60 ”(15.45 mm) [D]
Weight: 7.23 oz (205 g)
Feature Enhancements: Firmware upgrades supported (OTA)
Audio Performance
Frequency Response: ±0.075dB (Condition: 20Hz~20kHz) Unbalance & Balance
±0.56dB (Condition: 10Hz~70kHz) Unbalance / ±0.55dB (Condition: 10Hz~70kHz) Balance
Signal to Noise Ratio: 116dB @ 1kHz, Unbalance / 116dB @ 1kHz, Balance
Crosstalk:130dB @ 1kHz, Unbalance / 130dB @ 1kHz, Balance
THD+N: 0.0008% @ 1kHz, Unbalance / 0.0007% @ 1kHz, Balance
IMD SMPTE: 0.0007% 800Hz 10kHz(4:1) Unbalance / 0.0006% 800Hz 10kHz(4:1) Balance
Output Impedance: Balanced out 2.5mm (1ohm) / PHONES 3.5mm (2ohm)
Clock Source
Clock Jitter: 30ps(Typ)
Reference Clock Jitter: 200 Femto Seconds
Battery
Capacity: 3,100mAh 3.7V Li-Polymer Battery
Memory
Built-in Memory: 64GB [NAND]
External Memory: microSD (Max 128GB) x1
OS
Supported OS: Windows XP, Windows 7,8,10 (32/64bit), MAC OS X 10.7 and up
Astell&Kern AK320
Inheriting Sound
The primary goal of Astell&Kern has always been to deliver the original sound,
and we believed that the AK380 did just that.
We wanted even more people to experience the AK320 and its ability to deliver the original sound as intended.
AK4490's Dual-DAC, DSD-to-PCM Playback, Parametric EQ with 20bands 0.01dB, 200 Femto Second VCXO Reference Clock,
Exceptional Expandability, DLNA-based AK Connect App and Metal Touch Sensor Home Button
AK320 vs. AK380
24bit 192kHz bit to bit Playback
AK320 is capable of bit-to-bit playback up to 24bit, 192kHz.
32bit audio is downsampled using a sample-rate converter (SRC). In addition, DSD 64/128 can be played back via conversion to PCM.
* 32bit, 384kHz is downsampled to 24bit, 192kHz, and 32bit, 352kHz is downsampled to 24bit, 176kHz for playback.
* DSD 64/128 is converted via DSD-to-PCM to PCM 24bit, 176kHz for playback.
PEQ (Parametric Equalizer)
A parametric equalizer (PEQ*1) was implemented in the AK380 to deliver detailed adjustment of the original sound, and an audio digital signal processor (DSP) was added to aid in this process.
This frees up CPU cycles previously needed for calculating graphic equalizers (GEQ), allowing more detailed and accurate calculations via the dedicated DSP.
The audio DSP expands the existing 10-band, ±0.5 dB graphic equalizer (GEQ*2) to 20-band, ±0.01 dB to more precisely adjust the frequency and gain (dB) as well as more accurately specifying the frequency range via Q value adjustments.
What is Parametric Equalization (PEQ*1)?
Parametric equalization refers to the ability to increase or decrease the volume within the Q value range. A Q value is a frequency range relative to a selected frequency. The frequency range decreases when the Q value increases and vice versa.
What is Graphic Equalization (GEQ*2)?
Graphic equalization divides the audible frequency register into several registers and increases or decreases the level of each register with a volume slider to adjust the respective frequency's characteristics. The switches of the volume slider are connected like a graph to visually determine the frequency characteristics, hence the name "graphic equalizer."
Equipped With a Femto Clock to Deliver True Original Sound
Astell&Kern implemented a voltage-controlled crystal oscillator (VCXO) high-precision clock with a reference jitter value of 200 femto seconds*3.
Femto clocks are commonly used in high-end audio systems, and the clock is measured in high-precision femtosecond units (one quadrillionth of a second).
What is VCXO?
A VCXO, or a voltage-controlled crystal oscillator, is a type of crystal oscillation device that creates oscillation frequencies. External environmental stimuli, which in this case mean voltage inputs, influence the frequency value. Adjustments to the voltage input tunes a precise frequency value.
What is Jitter?
Jitter refers to the undesired deviation in time that occurs in a periodic signal. In this case, jitter is the error that occurs in the reference clock required to perform the sampling in digital audio equipment.
By utilizing a femto clock, the AK320 is able to create a more accurate frequency value and make fine jitter corrections.
As a result, the AK320 faithfully reproduces analog sound closer than ever to the original source when transmitting a digital signal as an analog signal.
USB DAC
The AK320 supports USB DAC functionality.
The AK320 can be connected to a PC or Mac via USB for use as a USB DAC that supports PCM/DSD.
When playing back music stored on a PC or Mac, the Single-DAC is able to deliver richer audio of outstanding soundstage and resolution well beyond the limits of a built-in sound card.
* When using the AK320 as a USB DAC, its PEQ settings are not applied, and output up to 24bit, 96kHz is supported.
* DSD 64/128 is converted via DSD-to-PCM for playback.
AK Connect App
Astell&Kern has further enhanced DLNA functionality via the AK Connect app.
Wireless networking DLNA (version 1.0) connects to a NAS or PC, and is easily controlled with a smartphone or tablet through AK Connect.
Source files on a PC or NAS can be freely transferred and streamed without the hassle of turning on the computer and physically connecting with a cable.
If on the same access point (AP) network, music files on a PC or NAS can be played back via DLNA.
DMP (Digital Media Player)
Finds a list of content on a media server for selection and playback.
DMC (Digital Media Controller)
Finds a list of content on a media server and establishes a connection to a playback-capable device (renderer). By default, a DMC establishes a connection between a media server and media renderer and controls content playback-related operations.
DMS (Digital Media Server = Network Server)
Actually stores the media content to be shared. When connected to a network, the DMS transmits/distributes the media content for other devices to stream or download.
DMR (Digital Media Renderer = Network Player)
Connects to a media server via media controller for content playback.
Pressure-sensitive Metal Capacitive Touch
The AK320 features the same metal touch interface as the AK380.
The Metal Touch functions as a home key and
interfaces with the device via pressure-sensitive touches.
More Expandable Options
The AK320 can be expanded to a variety of devices through the micro-USB and balanced audio out ports located at the bottom of the product.
It can be connected with the AMP as well as professional high-impedance headphones for high output and USB for data transfer and charging.
It can also be connected to the Cradle for balanced audio functionality as well as the CD-RIPPER to conveniently rip audio CDs.
Specifications
General Specifications
Model: AK320
Body Color: Gun Metal
Body Material: Aluminum
Display: 4inch WVGA (480 x 800) Touchscreen
Supported Audio Formats: WAV, FLAC, WMA, MP3, OGG, APE(Normal, High, Fast), AAC, ALAC, AIFF, DFF, DSF
Sample Rate: PCM : 8kHz ~ 192kHz (8/16/24bits per Sample)
DSD : DSD64, Stereo / DSD128, Stereo
Output Level: Unbalance 1.98Vrms / Balance 1.98Vrms (Condition No Load)
DAC: AKM AK4490 x2 (Dual DAC)
Decoding: Support up to 24bit / 192kHz Bit to Bit Decoding
Input: USB Micro-B input (for charging & data transfer (PC & MAC))
/ Connection Mode : MTP (Media Device)
Outputs: PHONES (3.5mm) / Optical Out (3.5mm) / Balanced Out (2.5mm, only 4-pole supported)
Wifi: 802.11 b/g/n (2.4GHz)
Bluetooth: V4.0 (A2DP, AVRCP, aptX)
Dimensions: 2.95 ”(75.15 mm) [W] x 4.42 ”(112.4 mm) [H] x 0.64 ”(16.45 mm) [D]
Weight: 7.65 oz (217 g)
Feature Enhancements: Firmware upgrades supported (OTA)
Audio Performance
Frequency Response: ±0.053dB (Condition: 20Hz~20kHz) Unbalance & Balance
±0.56dB (Condition: 10Hz~70kHz) Unbalance / ±0.55dB (Condition: 10Hz~70kHz) Balance
Signal to Noise Ratio: 116dB @ 1kHz, Unbalance / 117dB @ 1kHz, Balance
Crosstalk: 130dB @ 1kHz, Unbalance / 135dB @ 1kHz, Balance
THD+N: 0.0008% @ 1kHz, Unbalance / 0.0007% @ 1kHz, Balance
IMD SMPTE: 0.0007% 800Hz 10kHz(4:1) Unbalance / 0.0006% 800Hz 10kHz(4:1) Balance
Output Impedance: Balanced out 2.5mm (1ohm) / PHONES 3.5mm (2ohm)
Clock Source
Clock Jitter: 30ps(Typ)
Reference Clock Jitter: 200 Femto Seconds
Battery
Capacity: 3,400mAh 3.7V Li-Polymer Battery
Memory
Built-in Memory: 128GB [NAND]
External Memory: microSD (Max 128GB) x1
OS
Supported OS: Windows XP, Windows 7,8,10 (32/64bit), MAC OS X 10.7 and up
Astell&Kern AK380
Evolved to Serve Pro-Audio
Astell&Kern has stayed on the course, offering the truest and most natural sound possible.
The new AK380 offers the most authentic sound from any digital music format with enhanced features that are sought-after by Pro-Audio.
32bit 384kHz Bit to Bit Playback, Native DSD (up to 5.6 MHz) Playback, Parametric EQ with 20bands 0.01dB,
200 Femto Seconds VCXO Reference Clock, Scalable Amp, DNLA based AK Connect App, Metal Touch Sensor Home Button
Every bit of the AK380 was designed for Pro-Audio in mind.
The sound that Pro-Audio people have been looking for starts with the AK380.
32bit 384kHz bit to bit Playback
AK300 is capable of bit-to-bit playback up to 24bit, 192kHz.
32bit audio is downsampled using a sample-rate converter (SRC). In addition, DSD 64/128 can be played back via conversion to PCM.
* 32bit, 384kHz is downsampled to 24bit, 192kHz, and 32bit, 352kHz is downsampled to 24bit, 176kHz for playback.
* DSD 64/128 is converted via DSD-to-PCM to PCM 24bit, 176kHz for playback.
PEQ (Parametric Equalizer)
A parametric equalizer (PEQ*1) was implemented in the AK380 to deliver detailed adjustment of the original sound, and an audio digital signal processor (DSP) was added to aid in this process.
This frees up CPU cycles previously needed for calculating graphic equalizers (GEQ), allowing more detailed and accurate calculations via the dedicated DSP.
The audio DSP expands the existing 10-band, ±0.5 dB graphic equalizer (GEQ*2) to 20-band, ±0.01 dB to more precisely adjust the frequency and gain (dB) as well as more accurately specifying the frequency range via Q value adjustments.
What is Parametric Equalization (PEQ*1)?
Parametric equalization refers to the ability to increase or decrease the volume within the Q value range. A Q value is a frequency range relative to a selected frequency. The frequency range decreases when the Q value increases and vice versa.
What is Graphic Equalization (GEQ*2)?
Graphic equalization divides the audible frequency register into several registers and increases or decreases the level of each register with a volume slider to adjust the respective frequency's characteristics. The switches of the volume slider are connected like a graph to visually determine the frequency characteristics, hence the name "graphic equalizer."
Equipped With a Femto Clock to Deliver True Original Sound
Astell&Kern implemented a voltage-controlled crystal oscillator (VCXO) high-precision clock with a reference jitter value of 200 femto seconds*3.
Femto clocks are commonly used in high-end audio systems, and the clock is measured in high-precision femtosecond units (one quadrillionth of a second).
What is VCXO?
A VCXO, or a voltage-controlled crystal oscillator, is a type of crystal oscillation device that creates oscillation frequencies. External environmental stimuli, which in this case mean voltage inputs, influence the frequency value. Adjustments to the voltage input tunes a precise frequency value.
What is Jitter?
Jitter refers to the undesired deviation in time that occurs in a periodic signal. In this case, jitter is the error that occurs in the reference clock required to perform the sampling in digital audio equipment.
By utilizing a femto clock, the AK380 is able to create a more accurate frequency value and make fine jitter corrections.
As a result, the AK380 faithfully reproduces analog sound closer than ever to the original source when transmitting a digital signal as an analog signal.
USB DAC
The AK380 supports USB DAC functionality.
The AK380 can be connected to a PC or Mac via USB for use as a USB DAC that supports PCM/DSD.
When playing back music stored on a PC or Mac, the Dual-DAC is able to deliver richer audio of outstanding soundstage and resolution well beyond the limits of a built-in sound card.
* When using the AK380 as a USB DAC, its PEQ settings are not applied, and output up to 32bit, 384kHz is supported.
* Native DSD (up to 5.6 MHz) is supported for playback.
AK Connect App
Astell&Kern has further enhanced DLNA functionality via the AK Connect app.
Wireless networking DLNA (version 1.0) connects to a NAS or PC, and is easily controlled with a smartphone or tablet through AK Connect.
Source files on a PC or NAS can be freely transferred and streamed without the hassle of turning on the computer and physically connecting with a cable.
If on the same access point (AP) network, music files on a PC or NAS can be played back via DLNA.
DMP (Digital Media Player)
Finds a list of content on a media server for selection and playback.
DMC (Digital Media Controller)
Finds a list of content on a media server and establishes a connection to a playback-capable device (renderer). By default, a DMC establishes a connection between a media server and media renderer and controls content playback-related operations.
DMS (Digital Media Server = Network Server)
Actually stores the media content to be shared. When connected to a network, the DMS transmits/distributes the media content for other devices to stream or download.
DMR (Digital Media Renderer = Network Player)
Connects to a media server via media controller for content playback.
Pressure-sensitive Metal Capacitive Touch
The AK380 is the first Astell&Kern product to utilize a metal capacitive touch interface.
The pressure-sensitive Metal Touch home button responds to fine pressure changes so users operate the device with just a light touch on the metallic pad.
More Expandable Options
The AK380 offers great expandable options through its micro USB connection and balanced out ports on the bottom of the unit.
The AK380's functionality is expandable by connecting to a variety of devices. You can increase the output and connect to a greater variety of high-impedance professional headphones through the upcoming AK380 Amp. The AK380 Cradle features balanced output in addition to USB data transfer and charging capabilities, and the AK380 CD-ROM drive rips audio CDs directly to the AK380.
Specifications
General Specifications
Model: AK380
Body Color: Meteoric Titan
Body Material: Aircraft Grade Duralumin
Display: 4inch WVGA (480 x 800) Touchscreen
Supported Audio Formats: WAV, FLAC, WMA, MP3, OGG, APE(Normal, High, Fast), AAC, ALAC, AIFF, DFF, DSF
Sample Rate: PCM : 8kHz ~ 384kHz (8/16/24/32bits per Sample)
DSD Native: DSD64(1bit 2.8MHz), Stereo
/ DSD128(1bit 5.6MHz), Stereo / DSD256(1bit 11.2MHz), Stereo
Output Level: Unbalance 2.2Vrms / Balance 2.3Vrms (Condition No Load)
DAC: AKM AK4490 x2 (Single DAC)
Decoding: Support up to 32bit / 384kHz Bit to Bit Decoding
Input: USB Micro-B input (for charging & data transfer (PC & MAC))
/ Connection Mode : MTP (Media Device)
Outputs: PHONES (3.5mm) / Optical Out (3.5mm) / Balanced Out (2.5mm, only 4-pole supported)
Wifi: 802.11 b/g/n (2.4GHz)
Bluetooth: V4.0 (A2DP, AVRCP, aptX)
Dimensions: 3.14 ”(79.8 mm) [W] x 4.42 ”(112.4 mm) [H] x 0.70 ”(17.9 mm) [D]
Weight: 8.11 oz (230 g)
Feature Enhancements: Firmware upgrades supported (OTA)
Audio Performance
Frequency Response: ±0.053dB (Condition: 20Hz~20kHz) Unbalance & Balance
±0.56dB (Condition: 10Hz~70kHz) Unbalance / ±0.55dB (Condition: 10Hz~70kHz) Balance
Signal to Noise Ratio: 116dB @ 1kHz, Unbalance / 117dB @ 1kHz, Balance
Crosstalk: 130dB @ 1kHz, Unbalance / 135dB @ 1kHz, Balance
THD+N: 0.0008% @ 1kHz, Unbalance / 0.0007% @ 1kHz, Balance
IMD SMPTE: 0.0007% 800Hz 10kHz(4:1) Unbalance / 0.0006% 800Hz 10kHz(4:1) Balance
Output Impedance: Balanced out 2.5mm (1ohm) / PHONES 3.5mm (2ohm)
Clock Source
Clock Jitter: 30ps(Typ)
Reference Clock Jitter: 200 Femto Seconds
Battery
Capacity: 3,400mAh 3.7V Li-Polymer Battery
Memory
Built-in Memory: 256GB [NAND]
External Memory: microSD (Max 128GB) x1
OS
Supported OS: Windows XP, Windows 7,8,10 (32/64bit), MAC OS X 10.7 and up
Astell&Kern AK380 AMP
The AK380's First Accessory, AMP
The primary goal of Astell&Kern has always been to deliver the original sound.
We're proud to introduce the AK380 AMP, an amplifier that supports high-impedance headphones and high-gain output while remaining faithful to the original sound.
Expansion-type amplifier with design unity.
3,400 mAh large-capacity battery.
8.1 VRMS high-gain balanced output.
4.1 VRMS unbalanced output.
Introducing AK380 AMP,
the first accessory to complement the AK380.
High Gain
Audio Block
AK380 AMP vs. Other AMP
Integrated Design
The AK380 AMP was designed as an extension of the light and shadow theme of the AK380.
Continuing this design concept, the AK380 AMP retains the subtle changes and details in the emitted brilliance as light flows across its surface. The diamond pattern engraved into the volume wheel of AK380 is repeated on the amplifier's rear light for design continuity.
The area of the amplifier in contact with the AK380's volume wheel reproduces the design's angle of reflection for comfortable wheel operation. The amplifier's light shining delicately through the gaps in the reflected surface visually accentuate the music’s mystique.
Unlike conventional amplifiers, the AK380 AMP was designed from the ground up as a single entity when combined with the AK380. The wheel on the rear of the amplifier that connects the two devices is a representation of the volume wheel seen throughout Astell&Kern products and expresses our unique design identity.
General Specification
Model: PAF11, AK380 AMP / AK380 AMP Copper
Body Colour: AK380 AMP : Meteoric Titan, Black / AK380 AMP Copper : Copper
Body Material: AK380 AMP : Aluminum / AK380 AMP Copper : Copper
Output Level:
[Low Gain] Unbalanced 2.1 VRMS / Balanced 2.1 VRMS (Condition: No Load)
[High Gain] Unbalanced 4.1 VRMS / Balanced 8.1 VRMS (Condition: No Load)
Input:
Type-B micro-USB Input (Charging & data transfer (PC & Mac))
/ Connection Mode: MTP (Media Device)
Outputs: PHONES (3.5mm) / Balanced Out (2.5mm, only 4-pole supported)
Dimensions: 3.17 ”(80.7 mm) [W] x 5.01 ”(128.4 mm) [H] x 0.40 ”(10.3 mm) [D]
Weight: AK380 AMP : 5.82 oz (165 g) / AK380 AMP Copper : 10.30 oz (292 g)
Audio Performance
Frequency Response:
[Low Gain] ±0.06 dB (Condition: 20 Hz – 20 kHz) Unbalanced / ±0.06 dB (Condition: 20 Hz – 20 kHz) Balanced
[High Gain] ±0.03 dB (Condition: 20 Hz – 20 kHz) Unbalanced / ±0.03 dB (Condition: 20 Hz – 20 kHz) Balanced
Signal to Noise Ratio:
[Low Gain] 110 dB @ 1 kHz, Unbalanced / 110 dB @ 1 kHz, Balanced
[High Gain] 113 dB @ 1 kHz, Unbalanced / 114 dB @ 1 kHz, Balanced
Crosstalk:
[Low Gain] 108 dB @ 1 kHz, Unbalanced / 130 dB @ 1 kHz, Balanced
[High Gain] 108 dB @ 1 kHz, Unbalanced / 128 dB @ 1 kHz, Balanced