Aggiornamento sull'Auralic Altair
Selling for <$2'000, the Altair slots beneath the Vega in performance yet combines Vega plus functionality with the Aries by supporting 15 sources including NAS, USB, local files (optional 2.5" HHD or SSD internal storage), uPnP/DLNA media server, TIDAL and Qobuz streaming, Internet radio, AirPlay, Bluetooth, Songcast and RoonReady; AES/EBU, coaxial, Toslink, USB device to computer, 2 USB host for storage and DAC, RJ45 Gigabit Ethernet and 802.11b/g/n/ac tri-band WiFi. Of course Lightning DS figures in a big way. It's the operating system and GUI, offering DXD and quad DSD support, gapless, on-device playlist and multi-room functions. Memory playback will soon cache an entire track to memory to improve sonics and avoid glitches with low Internet speeds or iffy connections. For now, Lightning is exclusive to iOS but Windows and Mac desktop versions are in development. Housed in the familiar Vega enclosure, the Altair retains the on-chip digital volume of the ESS 9018 DAC and the yellow-on-black 512x64 pixel Oled display, then adds a full-size headphone jack of unspecified potency. The Tesla hardware behind Lightning DS relies on a quad-core Coretec A9 processor which runs at 1GHz with 1GB of DDR onboard memory and 4GB of system storage. This operates at 25'000Mips to support AAC, AIFF, ALAC, APE, DIFF, DSF FLAC, MP3, OGG, WAV, WV and WMA. A future feature à la HQPlayer will be on-the-fly upsampling to DSD. Also planned are room-acoustic plug-ins and MQA support, to be delivered via automated online updates.
A low-jitter dual-freq clock for the 44.1/48kHz sample-rate frequencies is powered by a 9uV dedicated power supply and said to operate with Vega 'exact' mode precision. The power supply isn't a switching but linear design to reduce line noise by up to 90dB. Retained from the Vega are four built-in filter modes called 'precise', 'smooth', 'dynamic' and 'balance'. Each of them is an amalgamation of various filters optimized for corresponding sample rates. Relative to my own search for a cost-effective audiophile streamer, until Lightning bows as a Mac desktop version to be accessed without WiFi, I'm still out. Given the Altair's comprehensive featurization and attractive price however, most should be in - and in a big way.
Technical Specifications
Frequency Response
20 - 20KHz, +/- 0.1dB*
THD+N
<0.001%, 20Hz-20KHz at 0dBFS
Dynamic Range
121dB, 20Hz-20KHz, A-weighted
Streaming Inputs
Network shared folder
USB drive
Internal music storage**
uPnP/DLNA media server
TIDAL and Qobuz streaming
Internet Radio
AirPlay
Bluetooth
Songcast
RoonReady
Digital Inputs
1*AES/EBU
1*Coaxial
1*Toslink
1*USB device to computer
2*USB host for storage and DAC
1*RJ45 Gigabit Ethernet
1*802.11b/g/n/ac Dual-Band WiFi
Analog Outputs
1*Balanced XLR (output impedance 10ohm)
1*Single-ended RCA (output impedance 50ohm)
1*6.35mm Headphone jack
Supported File Types
AAC, AIFF, ALAC, APE, DIFF, DSF, FLAC, MP3, OGG, WAV, WV and WMA
Supported Digital Formats
All PCM from 44.1KS/s to 384KS/s in 32Bit***
DSD64, DSD128, DSD256***
Output Voltage
2Vrms at Max. with dynamic-loss-free digital volume
Control Software
AURALiC Lightning DS for iOS
AURALiC RC-1 remote control
OpenHome compatible software
uPnP AV compatible software
Device Display
512x64 pixels OLED Display
Power Consumption
Sleep: <10W
Playback: 35W at max.
Dimensions
11''W x 9''D x 2.6''H (33cm x 23cm x 6.5cm)
Weight
7.0 pounds (3.2kg)
* Tested under filter mode ‘Precise’ for all sampling rates
** With optional 2.5-inch HDD or SSD installed
*** 352.8KS/s, 384KS/s and DSD through streaming and USB only
*** 32bit through streaming and USB only