About the Astell&Kern SA700
High-res music to go
The volume control's LED ring indicates volume by the intensity of its red illumination. It can also show the bit depth of the music playing (green for 16-bit, blue for 32-bit, and violet for DSD).
High-res music to go
Astell&Kern describes their SA700 digital audio player as "past meets present." The design pays tribute to the company's first-ever music player. But the electronics inside are strictly cutting-edge.
The SA700 delivers bit-perfect playback for your high-resolution digital audio files. And the LED ring around the volume control is a nice touch — it's color-coded to show the bit depth of the music playing, and its intensity varies to indicate volume level.
Access to streaming music sources
This compact player has built-in Wi-Fi for easy access to your favorite online music services, including Amazon Music, Spotify®, TIDAL, and more. And it also has Bluetooth, so you can stream wirelessly to compatible speakers or headphones.
Dual high-performance DACs built in
The SA700 can do native playback of Direct Stream Digital (DSD) files — even Quad DSD. You also get bit-perfect playback for PCM-based files up to 32-bit/384kHz.
The player is also compatible with MQA, a high-resolution audio format. And you just might even discover some hidden details in your CD-quality and compressed music files, too.
More premium features
The SA700 features a 128GB internal memory. The microSD card slot can handle a memory card with up to 1TB of storage. The 4.1" touchscreen gives you a clear view of music selections and menus. And the player recharges via a USB-C cable. That means speedy file transfer and charging. (High-speed charger not included.)
- digital music player — plays MP3, FLAC, WAV, ALAC, Ogg Vorbis, AAC, AIFF, WMA, DFF, DSF, and MQA
- native DSD playback for DSD64 (2.8MHz), DSD128 (5.6Mz), and DSD256 (11.2MHz) files
- dual digital-to-analog converters for bit-perfect playback of high-resolution audio files (up to 32-bit/384Khz for PCM and 11.2MHz for DSD)
- 128GB internal flash memory
- microSD card slot for cards up to 1TB
- built-in Wi-Fi for streaming
- 4.1" color touchscreen display
- analog volume knob provides fine level adjustments
- color LED ring indicates bit depth and player volume
- 3.5mm unbalanced headphone output
- 2.5mm balanced 4-pole output for compatible headphones
- Bluetooth with high-quality aptX® HD streaming
- high-speed USB Type-C interface (cable included) for high-speed file transfer and battery charging
- built-in rechargeable battery lasts up to 8.5 hours
- durable stainless steel casing
- frequency response: 20-20,000 Hz ±0.024dB
- output impedance: 1.8 ohm (unbalanced); 1.9 ohm (balanced)
- total harmonic distortion: 0.0006% (1kHz, unbalanced output)
- signal-to-noise ratio: 120dB @ 1kHz (unbalanced); 123dB @ 1kHz (balanced)
- 2-3/8"W x 4-9/16"H x 11/16"D
- weight: 10.68 oz.
- warranty: 1 year
- Our 60-day money-back guarantee
- MFR # 3PPM518C-CMSIN1
What's in the box:
- Digital audio player (stainless steel)
- 39" USB 3.0 cable (Type A USB 3.0 on one end and USB-C on other end)
- Protective Film (two sets)
- Quick Start Guide
Astell&Kern SA700 reviews
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More details on the Astell&Kern SA700
Overview: The Astell&Kern SA700 (PPM51) portable high-resolution music player delivers true audiophile quality playback. The SA700 is based on the original design of the AK120, a first generation Astell&Kern portable digital audio player, but with updated technology. It features dual DACs (digital-to-audio converters) with balanced and unbalanced analog outputs. It has a large internal memory and a slot for high-capacity microSD cards to let you store thousands of high-resolution music files. The SA700 has a 4.1" HD touchscreen display, plus built-in Wi-Fi and Bluetooth with Qualcomm aptX HD.
Design and Construction: The Astell&Kern SA700 is constructed of durable stainless steel. The rotary volume knob on the right side features a unique LED indicator ring. The ring illuminates in a color to reflect the bit depth of the currently playing song: red (16-bit), green (24-bit), blue (32-bit), or purple (DSD). The SA700 is approximately 2-5/8" (w) x 4-9/16" (h) x 11/16" (d), and weighs 10.68 ounces.
Digital Storage: The SA700 has a 128 GB internal memory. It also has a microSD card slot to let you add even more memory. The unit will accept microSD cards up to 1 TB.
Dual DACs: The SA700 is equipped with two Asahi Kasei AK4492ECB DACs that support native playback of 32-bit/384 kHz PCM and DSD256 without downsampling. The SA700 provides rich and vivid audio reproduction, allowing you to enjoy the music as it was meant to be heard.
Compatible Audio Files: The SA700 supports the following audio file formats - WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF, & MQA.
- PCM Sample Rate: It supports 8kHz - 384kHz (8/16/24/32 bits per sample)
- DSD Native: DSD64 (1-bit/2.8MHz - Stereo), DSD128 (1-bit/5.6MHz - Stereo), and DSD256 (1-bit/11.2MHz - Stereo)
- MQA: 44-384kHz (16/24-bit)
MQA (Mastering Quality Audio): The Astell&Kern SA700 natively supports MQA, which is the closest quality to the original sound intended by a recording artist. Mastering Quality Audio (MQA) is an acronym of collective lossless & high-resolution audio source formats that typically come encoded with 24-bit, 44-192kHz of bit/sampling rates. Since MQA delivers about 6.5x more detail than a conventional CD (16bit/44.1kHz), listeners can enjoy a more realistic music experience. You will need to download the MQS Streaming Server to your computer (32 and 64-bit versions of Windows 7, 8, 10; Mac OS X 10.7 Lion or later).
Note: According to an A&K notice, the MQS Streaming Server Software will be discontinued, and not available for download, at the end of December, 2019. The app will continue to work, but may not be compatible with newer OS versions for Mac or PC.
20-band Parametric EQ: The SA700 features a parametric EQ to allow you to make detailed adjustments in the original sound to suit your tastes. The device has a 20-band EQ with ±5.0dB gain adjustments in 0.1dB increments. The EQ frequency bands include: 30Hz, 45Hz, 60Hz, 90Hz, 120Hz, 180Hz, 250Hz, 380Hz, 500Hz, 750Hz, 1kHz, 1.5kHz, 2kHz, 3kHz, 4kHz, 6kHz, 8kHz, 12kHz, 14kHz, and 18kHz. You can adjust the gain from -5dB to +5dB in 0.1dB increments, and the Q from 2.0dB to 4.0dB in 0.1dB increments. You can create, name, and save up to 20 User EQ presets.
Note: The EQ supports PCM, 8 to 192kHz and 8, 16, or 24-bit playback. It does not support DSD or 32-bit playback.
USB DAC: You can use the SA700 as an external USB DAC which supports Native DSD playback. With the Dual DACs and the exclusive DSD chip, the SA700 delivers much better sounding audio than your computer's built-in sound card. Connect the unit via USB from your computer and listen to your stored digital music with headphones, powered speakers, or home stereo. Volume is controlled using the device's rotary knob. The USB DAC is compatible with the following computer operating systems and audio formats.
- Computer OS: Windows XP, 7, 8, 10 (32-/64-bit versions) and Mac OS X 10.7 (Lion)-up.
- Audio Formats: PCM (8-384 kHz (8/16/24/32-bit) and DSD (2.8/5.6/11.2 MHz).
Balanced/Unbalanced Outputs: The Astell&Kern SA700 offers both balanced (L+/L-/R+/R-) and unbalanced outputs (L+/R+/GND). Balanced outputs have an additional "cold" signal to compliment the hot signal, which reduces external noise and increases output. The balanced output is a 4-conductor 2.5mm port (1 ohm) on the top of the device. The unbalanced output is a 3.5mm analog stereo output.
User Interface: The Astell&Kern SA700's user interface provides a simple, minimalist menu design and structure, allowing users to access features and functions quickly and easily. The user interface makes it easy to find and select your music files, change the volume (0 to 150), and adjust the sound. The high-definition 4.1" touchscreen display (720 x 1280 pixels) makes your song and player information easy to read on the larger, brighter screen. In addition, the player has a rotary volume wheel with a click response as you raise or lower the volume.
USB-C: The SA700 has a USB-C port on the bottom of the unit for connecting the unit to your computer for downloading music files and for charging the battery. USB Type-C support allows faster file transfer speeds and supports both data transfer and charging from the same cable. USB 3.0 protocol transfers data twice as fast when compared to non-USB-C players. The SA700 is compatible with Windows 7, 8, and 10 (32 and 64-bit), as well as Mac OS X 10.7 (Lion) or later.
Note: For best results, you should make sure your device's firmware is up-to-date before transferring music files.
Wi-Fi: The SA700 features built-in Wi-Fi (802.11 b/g/n - 2.4 GHz), allowing you to connect the device and your computer to the same network for streaming and downloading music.
Bluetooth w/ aptX HD: The SA700 also has built-in Bluetooth V4.2 with A2DP/AVRCP support for connecting a Bluetooth device to listen to music wirelessly. Qualcomm's aptX HD allows audio to be wirelessly streamed in significantly higher quality than over standard Bluetooth. The aptX HD codec supports 24-bit music quality over Bluetooth, so you'll hear fine details in your music, with more extensive dynamic range, deeper bass, and crystal-clear top end.
Rechargeable Battery: The SA700 is equipped with a built-in rechargeable Lithium-Polymer battery (3150mAh / 3.7V). The battery charges in approximately 4.5 hours via USB-C (with a 5V / 2A charging adapter). It is not compatible with 9V or 12V fast charging adapters. No charging device is included with the product. A fully charged battery can provide up to approximately 8.5 hours of continuous playback time (based on FLAC, 16-bit, 44.1 kHz, Unbalanced, Volume 80, EQ Off, LCD off).
Protective Film: The unit includes a protective film to keep the touchscreen and the rear panel scratch-free. Two sets of the protective film are included for the front and the back.
|Frequency Response||Unbalanced: 20-20kHz (±0.24dB); 20-70kHz (±1.95dB) |
Balanced: 20-20kHz (±0.24dB); 20-70kHz (±1.94dB)
|Signal-to-Noise||Unbalanced: 120dB @ 1 kHz |
Balanced: 123dB @ 1 kHz
|Crosstalk||Unbalanced: -134dB @ 1 kHz |
Balanced: -138dB @ 1 kHz
|THD+N||Unbalanced: 0.0006% |
|IMD SMPTE||Unbalanced: 0.0003% 800Hz 10kHz (4:1) |
Balanced: 0.0004% 800Hz 10kHz (4:1)
|Supported Audio Formts||WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF, and MQA|
|MQA Playback|| |
Services (Tidal Masters)
|Output Impedance||Unbalanced: 1.8 ohms |
Balanced: 1.9 ohms
|Output Level||Unbalanced: 2.0Vrms |
|Reference Clock Jitter||70ps (Typ)|
|Dimensions||Width 2.636", Height 4.583", Depth 0.67"|