Creek Evolution 2 CD Player

• • Producator:
  • Creek
  • Categorie:
  • CD playere
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  Descriere Produs

  • Creek Evolution 2 CD Player uses a Philips VAM1201 laser assembly and low profile loader. Servo control and decoder functions are performed by a Philips chip set. Creek Evolution 2 CD Player uses a single high current C core mains transformer fed from the mains via a custom designed common mode filter. To stabilise and isolate the voltages to the various analogue and digital circuits the Creek Evolution 2 CD Player uses no less than eight voltage regulators. Digital and analogue supplies are kept separate and the master clock uses its own supply. The Creek Evolution 2 CD Player has been designed to use a low jitter oscillator module that clocks the data from the drive to the D to A converter and also clocks the microcontroller with the same frequency. The data from the decoder is re-clocked to provide a low jitter signal to a Burr-Brown PCM 1738, DAC IC, which is capable of 24 bit/192kHz operation. The Creek Evolution 2 CD Player is an entry level product and therefore its price cannot support the level of circuitry required to perform up-sampling correctly. Following the D to A conversion, the Creek Evolution 2 CD Player uses four high grade Burr-Brown OPA604 op-amps to sum the balanced output from the DAC and to convert the output current into a voltage. As it also exits the D to A converter in the reverse phase, the Creek Evolution 2 CD Player uses two dual OPA2134 op-amps to both buffer the signal and reverse the phase prior to the output sockets. A relay is used at the output to mute the signal to ground when required.
   
   

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  Specificatii

  • • Power requirements
    • 220/240—50 Hz or 100/120—60Hz
  • • Power consumption
    • 23W max; 6W standby
  • • FQ response
    • 1 Hz - 20 kHz ± 0.25 dB
  • • Output level
    • 2.0 V RMS at 1kHz, 0 dB
  • • Output impedance
    • 50 Ohm, min load 1 Ohm
  • • Laser type
    • Semicond. ALGaAs, 790 nm ± 25 nm
  • • THD + Noise
    • > -97dB
  • • Dynamic range
    • > 100dB
  • • THD
    • < 0. 0008 % at 1 kHz, 0 dB
  • • Weight
    • 6Kgs
  • • Size W/H/D
    • 430 x 80 x 340mm