Astell&Kern

Astell&Kern - A&norma SR25

Name: Astell&Kern - A&norma SR25
Brand: Astell&Kern
SKU: Astell&Kern - A&norma SR25 - Onyx Black
Price: 54990.0 INR
Availability: InStock
Rating: 4.75 (4 reviews)

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Designed in
Korea

Ideal for
Audiophiles

Best Suited for
Portable Use

1 Year of
Warranty

Metal
Build

Bluetooth with
aptX HD & LDAC

21 Hours of
Battery Life

Battery Capacity of
3150 mAh

Upto 1 TB
of Storage

2.5mm
Balanced Output

Dual Cirrus Logic
CS43198

DESCRIPTION

In the quest to get closer to the sound which the artist intended, Astell&Kern has developed the latest SR25 which is an upgrade to their previous model SR15. The latest SR25 features a Quad-core CPU along with the debutant Dual Cirrus Logic CS43198 Master Hi-Fi level DAC. It also extends native playback support for DSD256.

SR25

The SR25 debuts with the native DSD256 and 32bit/384kHz audio which has never been used in a standard Astell&Kern player before, allowing it to deliver unrivalled performance. It has a new performance mode that optimizes the performance depending on the data size of the source being played. This results in the production of ultra-high-resolution audio without any break-up.

The SR25 employs Astell&Kern's uniquely developed PCB design which helps in better processing the high-speed signals and delivering lag-free high-res sound without reducing the audion path lengths. To add more efficiency, the new circuit design and audio patterns implement distortion-free signal transmission and noise reduction to each channel. Furthermore, the laser ground extension tech delivers the best sound without any distortion. All thanks to the ultra-low noise filter that helps deliver a noise-free flawless sound.

The design of the SR25 is the result of Astell&Kern's Precise Metalworking Technology. The aluminum body is designed to deliver high-grade sound quality by suppressing noise. It features rectangular surfaces with added angles. The perfect cuts are similar to the reflections of light and it makes space depths around volume wheel which further highlights the reflections. It's built to be efficiently used with one hand. Additionally, the front screen angle adds more space around it to provide a better in-hand grip.

The SR25 delivers almost 21 hours of playtime which is two times the battery life of its predecessor. It supports aptX HD Bluetooth codec for 24-bit music playback along with the advanced LDAC codec for transferring high-resolution audio wirelessly. So pair the SR25 with Bluetooth headphones and speakers and be rest assured of the audio quality.
SR25

The firmware of the SR25 is based on the Android 9.0 OS, opening your door to music streaming applications. Astell&Kern further optimizes the OS for a fluid and efficient music listening experience. Stream your favourite songs over .apk apps like Tidal, Spotify, Amazon Music, Apple Music and more with the Open APP Service. The MQA (Master Quality Authenticated) allows you to play MQA audio files and while offering a sound that matched to the original master recording.
SR25

SPECS

GENERAL SPECIFICATIONS

MODEL	SR25
BODY COLOR	Moon Silver
BODY MATERIAL	Aluminum
DISPLAY	3.6inch WVGA (720 x 1,280) TFT LCD
SUPPORTED AUDIO FORMATS	WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF, MQA
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	Unbalanced 2.0Vrms / Balanced 4.0Vrms (Condition No Load)
DAC	Cirrus Logic CS43198 x2 (Dual DAC)
DECODING	Support up to 32bit / 384kHz Bit-to-Bit Playback
INPUT	USB Type-C input (for PC & MAC)
OUTPUTS	Unbalanced Out (3.5mm) / Balanced Out (2.5mm, only 4-pole supported)
WIFI	802.11 b/g/n (2.4GHz)
MQA PLAYBACK	Services(Tidal Masters), Local files, External USB, MQA-CD(ripped)
CPU	Quad-Core
BLUETOOTH	V4.2 (A2DP, AVRCP, aptXTM HD, LDAC)
DIMENSIONS	2.5 ”(63.5 mm) [W] x 4.26 ”(108.3 mm) [H] x 0.63 ”(16.1 mm) [D]
WEIGHT	about 6.27 oz (about 178 g)
FEATURE ENHANCEMENT	Firmware upgrades supported (OTA)

AUDIO PERFORMANCE

FREQUENCY RESPONSE	±0.014dB (Condition: 20Hz~20kHz) Unbalanced / ±0.011dB (Condition: 20Hz~20kHz) Balanced ±0.10dB (Condition: 20Hz~70kHz) Unbalanced / ±0.12dB (Condition: 20Hz~70kHz) Balanced
SIGNAL TO NOISE RATIO	122dB @ 1kHz, Unbalanced / 123dB @ 1kHz, Balanced
CROSSTALK	-138dB @ 1kHz, Unbalanced / -144dB @ 1kHz, Balanced
THD+N	0.0007% @ 1kHz, Unbalanced / 0.0008% @ 1kHz, Balanced
IMD SAMPTE	0.0004% 800Hz 10kHz(4:1) Unbalanced / 0.0003% 800Hz 10kHz(4:1) Balanced
OUTPUT IMEDANCE	Unbalanced Out 3.5mm (1.8ohm) / Balanced out 2.5mm (1.6ohm)

CLOCK SOURCE

CLOCK JITTER	25ps(Typ)
REFRENCE CLOCK JITTER	200 Femto Seconds

BATTERY

CAPACITY	3,150mAh 3.7V Li-Polymer Battery
CONTINUOUS PLAYBACK	About 21 hours (Standard - MUSIC: FLAC, 16-bit/44.1kHz, Unbalance, Volume 50, EQ OFF, LCD OFF)
CHARGE TIME	About 2.5 hours (Standard - 5V/2A Charging)

MEMORY

BUILT IN MEMORY	64GB [NAND]
EXTERNAL MEMORY	microSD (Max. 1TB) x1

SUPPORTED OS

Windows 7,8,10 (32/64bit), MAC OS X 10.7 and up

IN THE BOX

BOX CONTENTS	1. Astell&Kern - A&Norma SR25 Digital Audio Player
	2.USB Type-C Cable X 1
	3. MicroSD Card Slot Cover X 2
	4. Protective Film (Front X 2, Back X 2)
	5. Quick Start Guide X 1
	6. Warranty Card X 1

COMPARISONS

	Astell&Kern - A&norma SR25 ₹ 49,990/- ₹ 54,990	iBasso DX220 ₹ 79,990/- ₹ 89,990	Cayin N6ii ₹ 84,990/- ₹ 99,990	Astell&Kern SA700 ₹ 99,990/- ₹ 119,990
Warranty
Screen Size	3.6inch	5.0inch	4.2inch	4.1inch
Weight	178g	240g	290g	303g
DAC Chip	Dual Cirrus Logic CS43198	Dual ES9028PRO	AK4497EQ	AKM AK4492ECB
Sample Rate	32bit/384kHz	32bit/384kHz	32Bit/384kHz	32bit / 384kHz
Battery Life	21 Hours	9 Hours	14 Hours	9 Hours
Balanced Outputs	2.5 mm	2.5 mm	4.4mm	2.5 mm
Digital Outputs	USB Type-C	SPDIF & USB-C	Coaxial, L2S & USB-C	USB-C
Balanced Outputs	64GB	64 GB	65 GB	128 GB
External Storage	1 x microSD	1 x microSD	1 x microSD	1 x microSD
Output level	Unbalanced 2.0Vrms Balanced 4.0Vrms	Unbalacned 3.1Vrms Balanced 6.2Vrms	32Ω: 245mW 150Ω: 64mW 300Ω: 32mW	Unbalanced: 2.0Vrms Balanced 4.0Vrms
Signal to Noise Ratio	Balanced 123dB Unbalanced 122dB	125dB	Balanced 121dB Unbalanced 119dB	Balanced: 123dB Unbalanced:122dB
Bluetooth Version	v4.2	v5.0	v4.2	v4.2
Bluetooth Codecs	LDAC, aptX HD & SBC	LDAC & aptX	LDAC, AAC, SBC & aptX	aptX HD
Tidal Streaming
Downloadable Apps
MQA Support
Expert Verdict	The SR25 is a new premium product that brings the philosophy of Astell&Kern to provide music the way it was meant to be heard, without compromise to an affordable, high quality player. Trusted Reviews	"This is a quality looking visual presentation right now with a stellar sound performance and a price that, in today’s market, that is very hard to find fault with. You are gonna like this a lot!" Headfonics	"The A01 motherboard taps into Cayin’s house sound or preference for something slightly richer, sweeter and an all-round performance that will appeal to a very wide audience indeed." Headfonics	"A sublime musical experience awaits the well-heeled audiophile. A near perfect marriage of industrial design and intoxicating sound make SA700 a superb high-res digital audio player by any measure." Tech Hive

FAQS

: All Astell&Kern products come with a year warranty. You can simply get in touch with us to claim the warranty.Click here.
: Yes, the SR25 does support MQA. Download master quality files and make most of them.
: Yes, it can be used as an external DAC or Bluetooth receiver with smartphones and tablets.
: The Astell&Kern SR25 does come with a 2.5mm balanced output to enhance the sound quality further.
: It comes with 21 hours of battery life on continuous play.
: The SR25 is a dual DAC player and hence it comes with two Cirrus Logic DAC Chips.
: The Open APP Service enables the user to install specific APK music streaming apps to the device.
: Copy the desired APK into the Open Service folder of the product and install the relevant App in the Menu-Service of the product.
: SA700, KANN Cube, SP1000, SP1000M, SE100 & SR15 support Open App Service.
: 7digital Music, Amazon Music, Apple Music, Audible, Awa, Bandcamp, BBC iPlayer Radio Bugs, Deezer, Dsaudio, FLO, foobar2000, Genie, IDAGIO, Joox, Kickbox, LastFM, Melon, Moov, My Yuner Radio, nugs.net, Onkyo HF Player, Pandora, Player FM, Qobuz, QQmusic, Sirius, Soundcloud, Spotify, Tidal, TuneIn, Xiaomi music, Yandex Music.

DOWNLOADS

SR25 User Manual

SR15 v1.41

SR25 is compatible with MAC OS X 10.7 and up. In order for a Mac computer to communicate with our device a MTP program will need to be installed.

How to install the program for file transfer:

1. Disconnect Device from PC

2. Download the file transfer driver at Android File Transfer site: http://www.android.com/filetransfer

3. Install the file downloaded according to the provided directions on website.

4. After successful installation, connect the device with the computer.

Warranty & Media Reviews

Don't sweat it, this Astell&Kern A&norma SR25 comes with a 1 year warranty from Astell&Kern that covers manufacturing defects. All products featured on Headphone Zone are backed by an original manufacturer's warranty.

Read more about Astell&Kern's warranty in India.

PRODUCT
DESIGN
WINNER

Reddot Design
Mar, 2020

Best portable music player £500-£1000

What Hi-Fi
Oct, 2020

Best portable music
player

What Hi-Fi
Nov, 2020

"Award winning SR15 now has successor. Astell&kKern's new cheapest player aims to upgrade the entry-level performance of its current line-up through a raft of improvements to both hardware and software."

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"The SR25’s design blends aesthetics with user convenience and features an aluminium body that suppresses noise and improves sound quality."

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"The SR25 is the first Astell&Kern player to offer LDAC with its v4.2 Bluetooth support, meaning that it can wirelessly stream 24-bit hi-res audio to compatible speakers and headphones"

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"The SR25 is a new premium product that brings the philosophy of Astell&Kern to provide music the way it was meant to be heard, without compromise to an affordable, high quality player."

Read More

Best DAP under 50k

This is truly one of the best entry level to midfi DAP available right now. Let me divide the review into 3 sections:
Aesthetics: This device is truly beautiful with an impeccable construction, akin to buying an apple product😊 the tilted screen takes some time to get used to but eventually you begin to appreciate the design language and convenience while holding in hand. The screen resolution is superb, perhaps the size could have been bigger as close to an inch at the bottom is non-functional due to the touch panel home button. Due to the small screen size, some people with thick fingers may struggle a bit while typing. Alert: Strongly recommend to buy a suitable case as the beautiful exterior is highly prone to scratches!
Hardware: Simply amazing battery life...getting an easy 21 hours with continous play and can really go without charge for days together with moderate usage. This has been the holy grail for all DAPs, but AK this time has done an amazing job to put together super efficient internals along with providing an all capable device with wifi capabilities & bluetooth streaming. The interface is smooth and fluid and due to the tight control on OS implementation, there is hardly any bugginess common with full android based DAPs. The APK implementation for third party apps has been compartamentalized and done very well, where you are able to have offline access from common streaming platforms.
Sound: Typical AK sound, sonically warm with a wide soundstage and good resolution. This truly shines from the 2.5mm balanced output with absolutely black background with sensitive IEMs (currently using CA Solaris 2020). During my experimentation, I tried the 3.5 mm SE out with a portable amp (Corda Quickstep) and the sound scales up amazingly well with tight control on bass along with beautiful midrange and vocals.
I could recommend it just for the battery life! but this is really much more with absolutely brilliant implementation of the user interface (along with all streaming functionalities) with an excellent easy to love sound!

Astell&Kern - A&norma SR25

Awesome Hardware

Amazing product, the design is out of the world and fit & finish is top notch. I liked the product.
Coming to sound, used with Diana earphones, it’s clean & clear sound reproduction is mind boggling.
Only thing holding me to rate 5 star is it’s software, it could have been better. Has limited app compatibility.
Otherwise it’s a wonderful product and highly recommend it

Astell&Kern - A&norma SR25

Astell&Kern - A&norma SR25