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Equipment > Phono Preamps > Creek - Plug-In Phono Boards
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CREEK - Plug-In Phono Boards

Phono Preamps

$200.00
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Availability: In Stock (1)
Item: ACRSEQ40
Description

Take Your Creek Amp to the Next Level

The Creek Sequel Plug-In Phono Cards are designed to match a wide range of MM and MC cartridges and can be fitted to the latest Creek integrated amps, like the Evo 2, Evolution 5350 and Destiny 2.

The module must be fitted inside the amp, in a slot that will change the Auxiliary Line input into a Phono input, so either the supplying dealer, or the user, must physically install the Phono pre-amp before it can be used. The circuitry cannot be switched for MM or MC so the correct module must be chosen to match the cartridge fitted on the turntable. The Evolution amp's display will automatically show "Disc" when the amp is fitted with the Plug-in module and selected for that input.

The Sequel 40 MM Phono pre-amp is the standard device which is suitable for most medium output Moving Magnet Phono cartridges rated 3-5mV. It is a two stage circuit and uses high-grade, NE5532 low-noise, integrated circuits to amplify the signal.

The Sequel 48 MM Phono pre-amp is the special device which is suitable for low output Moving Magnet Phono cartridges or high output Moving Coil types, rated 2-3mV. It is a two stage circuit and uses high-grade, Analog Device OP275 low-noise, integrated circuits to amplify the signal.

The Sequel 54 MC Phono pre-amp is the standard device which is suitable for most medium output Moving Coil Phono cartridges rated 0.5-0.9mV. It is a two stage circuit and uses high-grade, Analog Devices OP275 low-noise, integrated circuits to amplify the signal. Due to the very large size of transformer inside the Evolution 5350 and the magnetic field it generates, it is not advised to use the Sequel 54 with the Evolution 5350, as a higher level of low frequency noise will be heard.

The 75us RIAA de-emphasis is performed passively following the first gain stage and is directly coupled without capacitors to block DC, for a clearer sound. A separate DC servo circuit blocks DC and rolls-off low frequencies below 1 Hz. There is no rumble filter in this design. A second gain stage boosts the level up to 40dB and uses active feedback for 318 and 3180us de-emphasis using high-grade close tolerance components. The entire circuit is powered from a dedicated supply from the integrated amplifier, but uses high grade LM317 and LM337 adjustable voltage regulators set for +/-15V operation. This filters noise from the main amplifier and allows the Phono pre-amp to have the highest possible overload margin.

The Sequel Phono cards can 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
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Sequel 40:
Gain: 100 (40 dB)
Frequency Response: 20 Hz to 20 kHz +/- 0.25 dB
Signal to Noise Ratio: - 83 dB
Total Harmonic Distortion: < 0.03%
R1AA deviation: +/- 0.5%
Output: 250 mV from 2.5mV input
Input Sensitivity / Impedance/ Capacitance: 3.5 mV / 47K Ohm / 220pF
Overload Margin: 22 dB
Suitable for: medium to high output MM cartridges in the range of 3.5 mV - 5 mV output

Sequel 48:
Gain: 250 (48 dB)
Frequency Response: 20 Hz to 20 kHz +/- 0.25 dB
Signal to Noise Ratio: - 83 dB
Total Harmonic Distortion: < 0.03%
R1AA deviation: +/- 0.5%
Output: 250 mV from 1mV input
Input Sensitivity / Impedance/ Capacitance: 1 mV / 47K Ohm / 220pF
Overload Margin: 22 dB
Suitable for: high output MC or low output MM cartridges in the range of 0.9mV -2 mV output

Sequel 54:
Gain: 500 (54dB)
Frequency Response: 20 Hz to 20 kHz +/- 0.25 dB
Signal to Noise Ratio: - 75 dB
Total Harmonic Distortion: < 0.05%
R1AA deviation: +/- 0.5%
Output level: 250 mV from 0.5mV input
Input Sensitivity / Impedance/ Capacitance: 0.5 mV / 1000 Ohm / 3300 pF
Overload Margin: 22 dB
Suitable for: medium output cartridges in the range of 0.5 mV - 1 mV output

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