SR15
The A&norma SR15 is a compact portable digital audio player from Astell&Kern, positioned as the entry model of its standard line for listeners starting out in Hi-Fi. It uses dual Cirrus Logic DACs, plays DSD natively and offers both 3.5mm and 2.5mm balanced outputs.
- Dual Cirrus Logic CS43198 DACs
- Native DSD64; DSD128 converted to PCM
- 24-bit/192kHz bit-to-bit playback
- 3.5mm and 2.5mm balanced outputs
- 64GB built-in memory plus microSD up to 1TB
- USB digital audio output via DoP; OTA firmware updates
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Prodat stejnýPopis
The SR15 is a pocket-sized music player with an aluminum body and a 3.3-inch WVGA touchscreen. Two Cirrus Logic CS43198 DAC chips handle conversion, and a quad-core CPU is used to speed up audio processing and the interface. PCM files up to 24-bit/192kHz are played bit-for-bit, DSD64 is played natively, and DSD128 is converted to PCM. 32-bit material is downsampled to 24-bit.
For listening it provides a 3.5mm single-ended headphone output and a 2.5mm balanced output (4-pole only). Output level is 2.0Vrms unbalanced and 4.0Vrms balanced with no load. The USB port can also work as a digital output to an external USB DAC or portable amp, with DSD passed via DoP where the receiving device supports it. An OTG cable is not included.
The player has 64GB of built-in memory and a microSD slot for cards up to 1TB. Wi-Fi (802.11 b/g/n, 2.4GHz) allows over-the-air firmware updates, and a USB Micro-B port handles charging and file transfer to Windows or Mac computers in MTP mode. A 3,150mAh battery powers the unit.
Video
Specifikace
- Značka
- Astell&Kern
- Model
- SR15
- Kategorie
- Hi-Fi a domácí audio › Přehrávače
General
- Model
- SR15
- Display
- 3.3inch WVGA (480 x 800) TFT LCD
- Supported audio formats
- WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF, MQA
- Firmware
- Firmware upgrades supported (OTA)
Audio
- DAC
- Cirrus Logic CS43198 x2 (Dual DAC)
- Decoding
- Support up to 24bit / 192kHz Bit to Bit Decoding
- Sample rate
- PCM : 8kHz ~ 192kHz (8/16/24bits per Sample) / DSD Native : DSD64(1bit 2.8MHz), Stereo / DSD to PCM : DSD128(1bit 5.6MHz)
- Output level
- Unbalance 2.0Vrms / Balance 4.0Vrms (Condition No Load)
- Frequency response
- ±0.030dB (20Hz~20kHz) Unbalance / ±0.024dB (20Hz~20kHz) Balance
- Signal to noise ratio
- 122dB @ 1kHz, Unbalance & Balance
- Crosstalk
- 137dB @ 1kHz, Unbalance & Balance
- THD+N
- 0.0008% @ 1kHz, Unbalance / 0.0009% @ 1kHz, Balance
- IMD SMPTE
- 0.0004% 800Hz 10kHz(4:1) Unbalance & Balance
- Output impedance
- Balanced out 2.5mm (1.6ohm) / PHONES 3.5mm (1.1ohm)
- Clock jitter
- 70ps (Typ)
Connectivity
- Input
- USB Micro-B input (for charging & data transfer (PC & MAC)) / Connection Mode : MTP (Media Device)
- Outputs
- PHONES (3.5mm) / Balanced Out (2.5mm, only 4-pole supported)
- Wi-Fi
- 802.11 b/g/n (2.4GHz)
Storage
- Built-in memory
- 64GB [NAND]
- External memory
- microSD (Max. 1TB) x1
Power
- Battery capacity
- 3,150mAh 3.7V Li-Polymer Battery
Physical
- Body color
- Dark Gray
- Body material
- Aluminum
- Dimensions
- 2.26 ”(57.5 mm) [W] x 3.92 ”(99.7 mm) [H] x 0.63 ”(16.1 mm) [D]
- Weight
- about 5.43 oz (about 154 g)
Software
- Supported OS
- Windows 7,8,10 (32/64bit), MAC OS X 10.7 and up