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  • Creek Sequel 54 Phono Preamplifier Board
  • Creek Sequel 54 Phono Preamplifier Board

Creek Sequel 54 Phono Preamplifier Board

$299.00

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DETAILS

The Sequel 54 mk2 MC Phono pre-amp is the device specifically suited for medium output Moving Coil cartridges, with an output between 0.5 to 1mV and a matching impedance of <120 Ohms.

The Sequel 54mk2 is not suitable for high output MC cartridges, which require lower gain and a higher 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 MC cartridge’s <120 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  x500 (54dB)
Frequency Response  10 Hz to 20 kHz +/- 0.5 dB
Signal to Noise Ratio 73 dB
Total Harmonic Distortion MC < 0.03%
R1AA deviation +/- 0.5%
Output level 400 mV from 0.8mV input
Input Sensitivity / Impedance/ Capacitance 0.8mV / 120 Ohm / 1000 pF
Overload Margin MM  22 dB
Suitable for medium output cartridges in the range of  0.5mV – 1mV 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 54 Phono Preamplifier Board

    The Sequel 54 mk2 MC Phono pre-amp is the device specifically suited for medium output Moving Coil cartridges, with an output between 0.5 to 1mV and a matching impedance of <120 Ohms.

    The Sequel 54mk2 is not suitable for high output MC cartridges, which require lower gain and a higher 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 MC cartridge’s <120 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  x500 (54dB)
    Frequency Response  10 Hz to 20 kHz +/- 0.5 dB
    Signal to Noise Ratio 73 dB
    Total Harmonic Distortion MC < 0.03%
    R1AA deviation +/- 0.5%
    Output level 400 mV from 0.8mV input
    Input Sensitivity / Impedance/ Capacitance 0.8mV / 120 Ohm / 1000 pF
    Overload Margin MM  22 dB
    Suitable for medium output cartridges in the range of  0.5mV – 1mV 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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