Description
Sony Walkman NW-A55 Digital Hi-Res Music Player, 16GB
A Series Walkman® Digital Music Player
- Precision engineered for improved sound quality
- Truly authentic sound with Hi-Res Audio
- S-Master HXâ„¢ digital amplifier for pure sound quality
- Easy Bluetooth® connectivity with NFC™ One-touch
- Enjoy up to 45 hours of music playback
- Effortless control with large touch screen
- Expanded memory with SD card slot (SD card not supplied)
Connectivity
Terminals
Headphone: Stereo mini-jack, WM-PORT: WM-PORT (multiple connecting terminal): 22 pins, USB[2]: Hi-Speed USB (USB 2.0 compliant)
Wireless Capabilities
Communication system: Bluetooth Specification Version 4.2, NFC: Yes, Supported Bluetooth profiles: Yes, Supported Codecs (Transmission): Yes, Supported Codecs (Reception): Yes
Footnotes
Digital Noise Canceling
Digital Noise Cancelation Select NC Environment: Full-auto AINC, Bus/Train, Airplane, Office
USB DAC Mode
Supported
Headphone Out (Stereo mini-jack)
Frequency
20–40,000 Hz
Maximum Power Output (JEITA 16Ω/mW)
35 mW + 35 mW
Playback & display
Audio Playback
MP3 (.MP3): 32–320 kbps (Supports variable bitrate (VBR)) / 32, 44.1, 48 kHz, WMA (.WMA): 32–192 kbps (Supports variable bitrate (VBR)) / 44.1 kHz, FLAC (.flac): 16, 24 bit / 8–384 kHz, WAV (.WAV): 16, 24, 32 bit (Float / Integer) / 8–384 kHz, AAC (.mp4, .m4a, .3gp): 16–320 kbps / 8–48 kHz, HE-AAC (.mp4, .m4a, .3gp): 32–144 kbps / 8–48 kHz, Apple Lossless (.mp4, .m4a): 16, 24 bit / 8–384 kHz, AIFF (.aif, .aiff, .afc, .aifc): 16, 24, 32 bit / 8–384 kHz, DSD (.dsf, .dff): 1 bit / 2.8224, 5.6448, 11.2896 MHz *Audio that is converted to Linear PCM is output., APE (.ape): 8, 16, 24 bit / 8–192 kHz (Fast, Normal, High), MQA (.mqa.flac): Supported
Audio Playback Notes
Sampling frequency may not correspond to all encoders. Copyright protected files cannot be played back. Non-standard bit rates or non-guaranteed bit rates are included depending on the sampling frequency. Files that are 4 GB (APE is 2 GB) or larger cannot be played back. This product recognizes audio sources exceeding CD quality (44.1 kHz / 16 bit quantization) and DAT quality (48 kHz / 16 bit quantization) as High-resolution Audio. The “HR” symbol is displayed for high-resolution audio sources. For sampling frequency over 352.8 kHz, it will be down converted to a lower frequency for playback.
Display Resolution
3.1″ (7.8 cm), WVGA (800 x 480 Pixels)
Display Type
TFT color display with white LED-backlight
Drag and Drop
Yes
FM Tuner
Yes
Music Play Mode
Shuffle Playback, Repeat Off, Repeat 1 Song, Repart All, All Range, Selected Range
Music Searching Methods
All Songs, Artist, Release Year, Playlists, Album, Genre, Composer, Hi-Res, Recent Transfers, SensMe Channels, Folder
Sound Effects
6 Band equalizer, DSEE HX,DC Phase Linearizer, Dynamic Normalizer, VPT, ClearAudio+, Clear Phase, Vinyl Processor
Power
Battery Life – Continuous Playback Music
MP3 (128 kbps) / Ambient Sound Mode ON: Approx. 30 hrs, MP3 (128 kbps) / Ambient Sound Mode OFF: Approx. 45 hrs, AAC (256 kbps) / Ambient Sound Mode ON: Approx. 27 hrs, AAC (256 kbps) / Ambient Sound Mode OFF: Approx. 39 hrs, FLAC (96 kHz / 24 bit) / Ambient Sound Mode ON: Approx. 27 hrs, FLAC (96 kHz / 24 bit) / Ambient Sound Mode OFF: Approx. 39 hrs, FLAC (192 kHz / 24 bit) / Ambient Sound Mode ON: Approx. 23 hrs, FLAC (192 kHz / 24 bit) / Ambient Sound Mode OFF: Approx. 30 hrs, DSD (2.8224 MHz / 1 bit) / Ambient Sound Mode ON: Approx. 20 hrs, DSD (2.8224 MHz / 1 bit) / Ambient Sound Mode OFF: Approx. 25 hrs, MP3 (128 kbps) / Noise Cancel ON: Approx. 37 hrs, MP3 (128 kbps) / Noise Cancel OFF: Approx. 45 hrs, AAC (256 kbps) / Noise Cancel ON: Approx. 33 hrs, AAC (256 kbps) / Noise Cancel OFF: Approx. 39 hrs, FLAC (96 kHz / 24 bit) / Noise Cancel ON: Approx. 32 hrs, FLAC (96 kHz / 24 bit) / Noise Cancel OFF: Approx. 39 hrs, FLAC (192 kHz / 24 bit) / Noise Cancel ON: Approx. 27 hrs, FLAC (192 kHz / 24 bit) / Noise Cancel OFF: Approx. 30 hrs, DSD (2.8224 MHz / 1 bit) / Noise Cancel ON: Approx. 22 hrs, DSD (2.8224 MHz / 1 bit) / Noise Cancel OFF: Approx. 25 hrs, MP3 (128 kbps) / SBC (Connection): Approx. 20 hrs, FLAC (96 kHz / 24 bit) / LDAC Connection Preferred (Auto): Approx. 13 hrs, SBC (Connection): Approx. 15 hrs, LDAC (Sound Quality): Approx. 12 hrs
Battery Life — Continuous Playback Music Notes
The values shown in this topic are the approximate battery life when content is played continuously at the default settings. Even if the player is turned off for an extended period, a small amount of battery power is still consumed. Battery life may vary depending on volume settings, conditions of use and ambient temperature. The battery is consumed considerably when the screen is on. The battery life may become about 70% shorter when some of the sound quality settings are active.
Built-in battery
Built-in Rechargeable lithium-ion Battery
Charging Time (full charge)
Approx. 4 hrs
Charging and Power supply
USB power (from a computer via a USB)
Size & Weight
Dimensions (W x H x D)
Approx. 2.20 inches x 3.84 inches x 0.43 inches (55.7 mm x 97.3 mm x 10.8 mm)
Weight
Approx. 3.50 oz (99 g)
Software
Operating System
Sony original OS
Storage Media
Memory Size
16 GB, Micro SD Micro SDHC Micro SDXC