The Well-Tempered Computer, an introduction to computer audio

Sunday, August 17, 2014

432 EVO music server

432 EVO € 1699


Fan less music server based on Vortexbox
Clients: MPD/Squeezebox/DLNA
Control: Android tablet (7” tablet included)
HD: 1TB
SOtM USB card

Outputs:
USB (24/384 & DSD) USB Audio Class 2 compliant
Toslink/ SPDIF/HDMI

Size: 435 x 325 x 60mm (W x D x H)
This box is called 432 because the manufacturer strongly believes classical tuned at 432 Hz sounds better.
A plugin in supplied to change the tuning of any recording to 432 Hz.

Thursday, July 17, 2014

Marantz NA-11S1

Marantz NA-11S1 € 3999,-


A very versatile player:
Streaming: AirPlay / DLNA (certified V1.5)
Internet: Spotify /last.fm
USB DAC: asynchronous USB 24/192 (driver for Windows)
USB port for iDevices
DoP (DSD over USB) DSD64/128
File formats: MP3 / WMA / AAC / ALAC / WAV / FLAC / FLAC HD
Remote app: iDevice / Android
Gapless playback

Inputs: Ethernet, coax , optical USB
Outputs: RCA / XlR /headphone

Wednesday, May 7, 2014

Oppo HA-1 Headphone Amplifier

Oppo HA-1 Headphone Amplifier US$ 1,199.00


Discrete Class A Balanced Headphone Amplifier
Asynchronous USB DAC Up to 384 kHz and DSD256
Stereo Pre-Amplifier with Home Theater Bypass
Compatible with iPod/iPhone/iPad and Bluetooth
Bluetooth also supports the APTX codec.
A remote control app is available for both Apple's iPhone and Android-based smartphones.

Inputs
Analog inputs: RCA/XLR

Digital inputs:
Coaxial, Optical, AES/EBU 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz with 16/24 bit word length
USB:
Stereo PCM:
44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz, 352.8 kHz, 384 kHz
16-bit, 24-bit, 32-bit word length
Stereo DSD (DoP v1.1 or native)
2.8224 MHz (DSD64), 5.6448 MHz (DSD128), 11.2896 MHz (DSD256, native mode only)

Mobile USB Audio Input (USB A Type)
Stereo PCM 44.1 kHz, 48 kHz

Profile USB 2.0, USB Audio 2.0 (driver for Windows available)

Bluetooth 2.1+EDR
Profile: iAP, SPP, AVRCP, A2DP
Audio: SBC, aptX


Outputs
Analog output: XLR/RCA

Headphone output: Jack (0.7 Ohm), 4 pin XLR (symmetrical, 0.5 Ohm)

Wednesday, April 30, 2014

Auralic Aries

Auralic Aries $1599/€ 1499


Streaming audio player supporting PCM up to 384 kHz and DSD up to 5.6448 mHz.

Streaming: uPnP Qobuz WiMP Songcast AirPlay
FIle formats: AAC,  AIFF,  ALAC,  APE,  DIFF,  DSF,  FLAC,MP3,  OGG,  WAV,  WV  and  WMA
Sample rates: PCM in 44.1KHz – 384KHz at 16 ‐ 24bits, DSD 2.8224MHz and 5.6448MHz

Inputs:
RJ45 Gigabit Ethernet,
Dual Band 802.11ac Wireless
USB 2.0 High external HD

Outputs:
USB 2.0 High‐Speed for compatible USB DACs,
AES/EBU,
OAXICAL,
TOSLINK

Interface:
AURALiC Lightning DS App on iOS, Android, OS X and Wind
UPnP compatible control points

Clock: Dual 240fs  Femto Clocks
Power: 10uV  Low  Noise  external  PSU


Aries LE has the same specs but simpler clocking and PSU ($999)

Friday, April 11, 2014

Bryston BUC-1 USB Converter

Bryston BUC-1 USB Converter $750


  • Native 24 bit resolution at sampling rates of up to 192 kHz
  • Asynchronous USB receiver
  • Controls master timing of the audio system
  • Outputs transformer coupled
  • Input sample rate indicators
  • Ultra low noise linear power regulation
Dimensions
  • 2.25” H x 5.63” W x 8” D
  • 57.15mm H x 142.88mm W x 203.2mm D

Sunday, April 6, 2014

Audiobyte Hydra X+ USB to SPDIF converter

Audiobyte Hydra X+ €699.00


- asynchronous operation
- DSD compatible
- Lithium Polymer nano , low noise battery technology
- 384k/24 bit on all outputs (optical could be limited to 96k)
- bitperfect operation
- Native on Linux, Mac
- Windows drivers available
- I2S/DSD output , LVDS compatible
- S/PDIF, AES/EBU, BNC

Monday, February 3, 2014

Gato Audio DIA-250 Integrated Amplifier $4,500


  • 2x 250W@8ohm / 2x 500W@4ohm
  • Class D output stage
  • Built in 24bit/192kHz D/A converter with upsampling
  • Coax, optical and asynchronous USB digital input up to 24bit/192kHz
  • Accepts digital streaming directly from Apple iPad
  • Two unbalanced and one balanced inputs
  • Nonmagnetic enclosure
  • Direct function; enables use in home theater sytems

Linnenberg VIVACE

Linnenberg VIVACE €1'690


ES9018 ESS Sabre DAC

femto master clock with a clock accuracy of under 0.1ps clock jitter

Sampling frequencies PCM : 44.1, 48, 88.2, 96, 176.4, 192, 352.8, 384 kHz
S/PDIF – input limited to 192 kHz max.
Resolution PCM : 32bit
Resolution DSD : DSD64 (2.8224MHz) and DSD128 (5.6448MHz) over DoP protocol
Master clock jitter : 82 fs (femto seconds)
Frequency response : DC - 24kHz +0.1dB -0.5dB
DC – 70kHz -3dB @192kHz or DSD
Distortion and noise : <0 -="" .002="" 0db="" 10hz="" 20khz="" p=""> Dynamic range : 130dB
Output level : 2V rms single ended / 4V rms balanced
Output impedance : 100 Ohm per phase

Mains voltage : 100V - 240V
Power consumption : 9W, < 0.5W stand by
Dimensions (H x W x D) : 51 x 165 x 226 mm

Clones Audio Sheva DAC

Clones Audio Sheva DAC €1799





 Digital Inputs: AES/EBU, S/PDIF, BNC,Toslink, I2S and USB
• 2 stereo analog outputs, one on XLR one on RCA
• 100steps fine setting via rotary encoder (digital domain) control main output

Frontpanel controls:
• Dot Matrix display for display of sampling rate, input source, audio level, filter type
• Rotary encoder with push switch

Special features:
• DSD 64/128 and DXD (384KHz 24bit PCM) compatible
• Ultra-Low Phase Noise Femto Master Clock
• Power supply has separate torroidal transformers for Analog and Digital section.

Sampling rates:
• AES/EBU, COAX, OPT up to 192kHz
• USB/I2S: PCM 44.1, 48, 88.2, 96, 176.4, 192, 352.8, 384kHz; DSD64, DSD128

Thursday, January 16, 2014

Bladelius Miner €3.000

Bladelius Miner €3.000


  • 2 pc Toslink input
  • 2 pc spdif input
  • 1 pc analog input
  • 2 pc USB
  • 1 USB togo
  • Analog input
  • Headphone out
  • Pre out
  • Ethernet
  • Wifi
  • Supports 32bit/384khz
Expansion port (future external boxes)
CD player optional
Plays from WIMP, Spotify, Nas, USB Etc


iPad App released soon.

Eclipse TD-M1 $1.300

Eclipse TD-M1 $1.300


Full range driver with NOS DAC and Class D amp.
Inputs:
Airplay (16 bits / 48 kHz)
Async USB (24 bits / 192 kHz)
USB-A
3.5mm analog Aux

Nagra HD DAC €19.900

Nagra HD DAC €19.900

Astell&Kern AK10 Headphone Amp/DAC $299.00

Astell&Kern AK10 Headphone Amp/DAC $299.00


DAC: Wolfson WM8740 24-bit DAC

  • IOS: iPhone5th, iPod touch 5gen (Max 24bit, 48kHz)
  • Android: Galaxy S3, S4, Note2 (Max 16bit, 44.1kHz)
    Note3 (Max 24bit, 96kHz)
    Supports up to the JellyBean 4.1.2 OS / OTG Support
  • Windows XP, Windows Vista,7,8 (32/64bit) (Max 24bit, 96kHz)
  • Mac OS X 10.6.5 and up (Max 24bit, 96kHz)

Friday, December 6, 2013

Motherboard for audio

Gigabyte is the first company known to me selling a mobo with audio quality as a sales argument.
It features a dedicated USB port with clean power.
The onboard audio has socketed op-amps and adjustable gain.
They also claim to shield the analog components from noise at PCB level.


Gigabytes GA-H81.Amp-UP

Saturday, November 23, 2013

Hegel Super headphone amplifier

Digital inputs: USB micro
Outputs: mini-jack (analog) + optical mini-jack (digital)
USB interface: up to 24 bit / 96 kHz, plug & play
Noise floor: -140dB
Output impedance: Below 1 ohm
Dimensions: 1,6 cm x 4,1cm x 8,2cm / 0.6” x 1.6” x 3.2” (HxWxD)

Website: Hegel
Price: $399