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  • Creek Sequel 48 Phono Preamplifier Board
  • Creek Sequel 48 Phono Preamplifier Board

Creek Sequel 48 Phono Preamplifier Board

$299.00

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The Sequel 48 mk2 MM Phono pre-amp is the device specifically suited for high output Moving Coil cartridges, with an output between 0.9 to 2mV and a matching impedance of 47k Ohms.

The Sequel 48mk2 is not suitable for medium to low output MC cartridges, which require higher gain and a lower input impedance.

The Sequel mk2 has two gain stages using low-noise op-amps. RIAA correction is performed both active and passively. The first gain stage matches the MM cartridge’s 47k Ohms impedance and adds gain, without changing the frequency response.

The first stage of RIAA de-emphasis is performed passively between the two gain stages. The mk2 circuit uses a low impedance filter circuit for improved noise performance.

The second gain stage boosts the level further and uses active filtering in its feedback for the RIAA de-emphasis, For improved RIAA accuracy and improved sonic quality, the Sequel mk2 is made with E96 1 % tolerance metal film resistors and 1% tolerance polypropylene WIMA capacitors.

To eliminate coupling capacitors that can negatively affect the sound, a DC servo circuit is used to block DC from input to output and roll-off low frequencies sensibly below 10Hz. There is no rumble filter in this design.

The Sequel mk2 is powered by a dedicated voltage from the integrated amplifier, via its PCB connection pins.  Locally, it uses a low noise voltage regulators, whose function is to stabilise the voltage and filter noise from the main power supply.  The Sequel mk2 has optimal overload margin for a given gain.

      

Specification

 Gain x250 (48 dB)
Frequency Response 10 Hz to 20 kHz +/- 0.5 dB
Signal to Noise Ratio 72 dB
Total Harmonic Distortion < 0.03%
R1AA deviation +/- 0.5%
Output 400 mV from 1.6mV input
Input Sensitivity / Impedance/ Capacitance 1.6mV / 47K Ohm / 220pF
Overload Margin 22 dB
Suitable for high output MC or low output MM cartridges 0.9mV -2mV output
      

    Please note: The Sequel Phono pre-amp cannot be fitted to the original Destiny 1 integrated amp, because the connections on the pre-amp 1 are unique and it had the special Destiny Phono pre-amp made for it only.

    The Sequel Phono modules can also be used to enable vinyl input on current and older Creek amplifiers including the following:

    • Destiny 2 integrated amp
    • Evolution 2 integrated amp
    • Evolution 5350 integrated amp
    • Classic 5350SE Integrated amp
    • 5350SE, 5350R and 5350 Integrated amps
    • 5250,5250R and 5250SE integrated amps
    • 4330 and 4330SE Integrated amps, but not mk2 versions.
    • 4240 and 4240SE Integrated amps
    • P42 Pre-amp
    Creek Sequel 48 Phono Preamplifier Board

    The Sequel 48 mk2 MM Phono pre-amp is the device specifically suited for high output Moving Coil cartridges, with an output between 0.9 to 2mV and a matching impedance of 47k Ohms.

    The Sequel 48mk2 is not suitable for medium to low output MC cartridges, which require higher gain and a lower input impedance.

    The Sequel mk2 has two gain stages using low-noise op-amps. RIAA correction is performed both active and passively. The first gain stage matches the MM cartridge’s 47k Ohms impedance and adds gain, without changing the frequency response.

    The first stage of RIAA de-emphasis is performed passively between the two gain stages. The mk2 circuit uses a low impedance filter circuit for improved noise performance.

    The second gain stage boosts the level further and uses active filtering in its feedback for the RIAA de-emphasis, For improved RIAA accuracy and improved sonic quality, the Sequel mk2 is made with E96 1 % tolerance metal film resistors and 1% tolerance polypropylene WIMA capacitors.

    To eliminate coupling capacitors that can negatively affect the sound, a DC servo circuit is used to block DC from input to output and roll-off low frequencies sensibly below 10Hz. There is no rumble filter in this design.

    The Sequel mk2 is powered by a dedicated voltage from the integrated amplifier, via its PCB connection pins.  Locally, it uses a low noise voltage regulators, whose function is to stabilise the voltage and filter noise from the main power supply.  The Sequel mk2 has optimal overload margin for a given gain.

          

    Specification

     Gain x250 (48 dB)
    Frequency Response 10 Hz to 20 kHz +/- 0.5 dB
    Signal to Noise Ratio 72 dB
    Total Harmonic Distortion < 0.03%
    R1AA deviation +/- 0.5%
    Output 400 mV from 1.6mV input
    Input Sensitivity / Impedance/ Capacitance 1.6mV / 47K Ohm / 220pF
    Overload Margin 22 dB
    Suitable for high output MC or low output MM cartridges 0.9mV -2mV output
        

      Please note: The Sequel Phono pre-amp cannot be fitted to the original Destiny 1 integrated amp, because the connections on the pre-amp 1 are unique and it had the special Destiny Phono pre-amp made for it only.

      The Sequel Phono modules can also be used to enable vinyl input on current and older Creek amplifiers including the following:

      • Destiny 2 integrated amp
      • Evolution 2 integrated amp
      • Evolution 5350 integrated amp
      • Classic 5350SE Integrated amp
      • 5350SE, 5350R and 5350 Integrated amps
      • 5250,5250R and 5250SE integrated amps
      • 4330 and 4330SE Integrated amps, but not mk2 versions.
      • 4240 and 4240SE Integrated amps
      • P42 Pre-amp
      $299.00 In Stock

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