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Northstar M192
The Model192 CD-Transport is born to reach the maximum results in CD reproduction; coupled with Model192 DAC via I2S connection it allows the transmission of the digital signal without jitter error.
Listening experience:
The balance among all the frequencies of the audio spectrum is perfect, the dynamic performance is like the better analogue systems and the 3D soundstage is so realistic that your room will be literally embedded into a fully live musical experience.
The Model 192 CD-transport is a Top Loading transport based on a Philips CD-PRO2 mechanism, used in hi-end CD-Player. This metal mechanism is decoupled from CD frame by a heavy duty suspension. The digital signal read from CD go into a double anti-jitter circuitry with on-board high precision re-clocking and it is upsampled until 192kHz-24bit on I2S digital output
The CD-transport have a S/PDIF, AES/EBU, I2S digital outputs; but only the I2S digital connection allow to separate clocks and data in the transmission between Transport and Dac without clock reconstruction problems.
Dynamic Range: 100dB
S/N Ratio: 100dB
Outputs: 1 S/PDIF on RCA (75 Ohm ), 1 AES/EBU on XLR balanced (110 Ohm), 1 I2S (RJ45)
Mains/Power Consumption: 230/115V 50/60Hz 20VA
Chassis size: 43,3 x 17 x 7.5 cm
Weight: (with envelope) 6,5 Kg
Model 192 D/A Converter $2500.00
The Model 192 represents a technologically more advanced DAC, born for the future. A two channel converter its circuit is designed for insertion into a multichannel conversion system, rendering it a long-lasting investment in the future.
The Model 192 is a classic two channel digital-to-analog converter that allows the conversion of digital signals until 192kHz-24bit according to the DVD-Audio standard. The input signals from a CD, DAT, DAB, DVD-Video are directly (at the same input frequency) converted or upsampled to 192kHz-24bit before the conversion.
But its flexibility does not end here. In fact the Model192 have a RJ45 input in I2S standard that allows to convert a 192kHz-24bit stereo digital signal. This will concur in the future to listen in simple way the multichannel codified music.
The digital receiver and upsampler until 96kHz-24bit is a Crystal CS8420-CS; the second upsampling until 192kHz-24bit is made by NPC SM5849AF. The Crystal CS4396-KS a 192kHz-24bit is the DAC.
The jitter in the input data is lowering by a oscillator circuit wich re-clock the input data.
The analog stage is DC coupled with the DAC, without capacitor on signal path, only with discrete and selected (gain matched) components (no OP AMP). Low negative feedback.
The power supply is separated for analog and digital with two toroidal transformers; all voltages are double regulated.
The M192 have a I2S input on RJ45 connector; this connection allow to convert an input signal until 192kHz-24bit. This connection is supported by the North Star Design CD-transport. On I2S connection the digital signal is directly transferred to the DAC without jitter; digital audio data and clocks are separetly transmitted to the DAC and no mixed in a sigle signal like S/PDIF or AES/EBU; this avoid any jitter problem in clock reconstruction.
Input sampling rates: 32 kHz - 192 kHz
Resolution: 8, 16, 20, 24 bit
Upsampling: Until 192 kHz
Clock Recovery: Double antijitter with reference clock
Dynamic Range: 117 dB
THD+Noise: -100 dB
Max. Output: Voltage 2 Vrms
Output Impedance: < 50 Ohm
Output Sockets" Gold plated RCA posts
Inputs: S/PDIF (2 RCA coax and Toslink optical), AES/EBU (XLR balanced) I2S (RJ45)
Mains/Power Consumption: 240/110V 50/60Hz 15VA
Chassis Size: 17 x 6.7 x 1.95 in, 43,3 x 17 x 5 cm
Weight (with envelope): 11.9 lbs,5,4 Kg |
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发表于 2004-11-1 18:38:41
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