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TUBE - DAC II - MK2(HD)

Audiophile reference D/A-converter with a so called “tube hybrid” concept

Special and unique 2 x 32 Bit / 192 kHz technology with simultaneous digital signal processing, separately for right and left channel

7 digital inputs:
- 3 inputs (2 x COAX, 1 x TOSLINK) optimized for HD playback up
to 192 kHz
- 1 asynchronous 24 bit / 192 kHz USB input for HD playback
- 3 inputs (XLR, COAX, BNC) optimized for lower frequencies up to 48 kHz

Extremely elaborate digital signal processing supported by an unique
32 bit Microcomputer

The 32 bit Microcomputer contains e.g.:
- High precision crystal oscillator
- 32 bit digital filter (including “de-emphasis” technology)
- 26 parallel working multiplier processors

Advantages of this “tube hybrid” technology:
- very high impedance
- very high bandwidth
- very low distortion factors and a perfect distortion spectrum
- “analog” and sound performance of outstanding precision

Easy exchange of tubes without any adjustments (“plug and play”)

Professional Class A output stage using technology derived from studio engineering

All used components are of outstanding quality (e.g. 10 pcs Burr Brown® OPA 627) and additionally selected

2 premium quality rotary switches with gold-plated silver contacts

2 magnetically shielded, encapsulated toroidal core transformers (“Made in Germany”) of premium quality for high output reserves

Very high power supply capacity (approx. 84,000 μF totally)

Extremely stable and resonance optimized housing, primarily made of massive aluminium plates; turning knobs made of massive and chromed brass

Digital inputs up to 192 kHz:
2 x S/P-DIF; unbalanced – 75 Ω (COAX)
1 x TOSLINK; optical

Digital inputs up to 96 kHz:
1 x USB 2.0
Digital inputs up to 48 kHz:
1 x AES/EBU; balanced – 110 Ω (XLR)
1 x S/P-DIF; unbalanced – 75 Ω (COAX)
1 x S/P-DIF; unbalanced – 75 Ω (BNC)
Digital outputs:
1 x S/P-DIF ; unbalanced - 75 Ω (COAX)
1 x AES/EBU; unbalanced – 110 Ω (XLR)
Analog outputs:
1 x balanced – 2 x 33 Ω (XLR)
1 x unbalanced – 33 Ω (COAX)
Input data formats:
16 to 24 bit word length /
32 kHz, 44.1 kHz, 48 kHz, 96 kHz, 192 kHz,
Transformer power : 

1 x 100 VA / 1 x 50 VA

Distortion (THD+N):

0.003% with 24 bit; bandwidth 22Hz - 22 kHz
Crosstalk:

107 dB with digital 0 dB
Tube type:
12 AX 7 dual triode; military version
4-times selected and matched
Dimensions (H x W x D):

100 x 482 x 375 mm / 3.9 x 19 x 14.8 inches
Weight:

12 kg / 26.4 lbs.

Formats
CD Formats : Red Book
Audio Formats : WAV, AIFF, FLAC, ALAC, OGG Vorbis, AAC, Windows Media-formatted content files, MP3
Internet Radio Provider : vTuner 
Disc Compatability : CD, CD-R, CD-RW

User Control
Front Panel : Touch-sensitive eject and shutdown mode function
TV Monitor : 4:3 and 16:9 customisable TV interface USB touch screen compatible
Web Interface : PC and Mac internet browser compatible Adobe Flash user interface
AMX Creston : Installer-customisable reference apps available
Handheld : User interface app for iPhone and iPod Touch devices

Streaming and Ripping
USB : Scan and play from FAT and NTFS formatted memory sticks
Network Shares : Scan and play from music stored on a network share
Network Storage : Rip to external network storage for expanded music storage
CD Metadata : AllMusic.com online, FreeDB online and local database
StreamNet : 6 user streams to NaimNet and NetStreams systems

Power
Supply Voltage : 100V-230V; 50 or 60Hz

Physical
Dimensions (HxWxD) : 87 x 207 x 314 mm
Weight : 4.2 kg
Supplied with : External power supply

Formats
CD Formats Red Book
Disc Compatability CD, CD-R

User Control
Front Panel Seven button matrix
Handheld R-Com

Power
Power Supply Options 555PS, 2 x 555PS

Upgrades
Power Supply 555 PS
Other NAC 252, 552 PS, NAP 500, 500 PS

Physical
Dimensions (HxWxD) 114 x 432 x 314 mm
Weight 20.2 kg
Supplied with Hi-Line, R-Com, Burndy x 2, Remote Control NARCOM 4, Clamp 6