The Sequel mk4 is designed and assembled in Europe using a multi-layer PCB fitted with high-quality mini-MELF resistors, WIMA capacitors and low-noise active circuitry. This makes it ideally suited for Moving Magnet cartridge amplification. To maintain top performance under all circumstances, a capacitance-multiplying filter circuitry is used to maintain ultra-low power supply power and stability.
The Sequel mk4 phono pre-amplifier replaces the internal “LINK” PCB and its function is to boost the signal level and changes the frequency response according to the RIAA standard. It has been developed to simplify the user experience and provide flexibility to match most types of popular cartridges.
Cartridge compatibility recommendation is just a rough guide to allow the average modulation of a vinyl disc to drive the amplifier to maximum rated power. Creek amplifiers range in power from 40 to 120 Watts into 8 Ohms, depending on the model.
Not only can it be switched for 40dB or 50dB gain, but the user can also select 100pF or 200pF input capacitance and IEC low-frequency roll-off, with a simple piano key switch!
The Sequel mk4 is flexible enough to match a wide range of MM and high-output MC cartridges. It is not suitable for medium to low output MC cartridges, which require lower matching impedance and higher gain.
A Sequel mk4 phono pre-amplifier is suitable for use with the following Creek Integrated amps and pre-amps from 1993 onwards. To make sure the Sequel mk4 suits your Creek amplifier, please read the definitive list below:
Evolution 100A and Evolution 50A, Destiny 2, Evolution 2, Evolution 5350, Classic 5350 SE, 5350 SE, 5350 R and 5350, 5250, 5250 R and 5250 SE, 4330, 4330 R and 4330 SE, 4240 and 4240 SE. P42 Pre-amp.
“Sound quality through passion, design and innovation.”
Mike Creek – Creek Audio
The Sequel mk4 phono pre-amplifier is not suitable for use with 4330 mk2, 4330R mk2, 4330 SE mk2, A50i and A50iR. Only discrete transistor, single-rail power supply phono pre-amps should be used. Check with Creek Audio for availability.
Please note: The Sequel mk4 phono pre-amplifier cannot be fitted to the balanced input Destiny 1 integrated amp. This is because its connections to the pre-amp were unique. However, an interface adapter can be made to order which enables a Sequel mk4 to be plugged into a Destiny 1!
Vinyl discs are a great source of high-quality music and are extremely popular again, but few amplifiers are equipped to handle it as standard. The usual requirement is for a separate (stand-alone) pre-amp box to boost signal level and change the frequency response.
In 1990, when vinyl use was in decline, Creek took the decision to leave out phono pre-amp circuitry from its integrated and pre-amplifier designs. However, it left an option to fit a plug-in module in series with the first input. This freed up the first input for Line 1.
For health and safety reasons, the Sequel mk4 phono pre-amplifier must be installed in the Voyage i20 amplifier by the supplying dealer or Creek Audio. The Sequel mk4 can be installed in all other models safely by the user if required.
Exact matching of cartridge gain is not too important, as the amplifier’s pre-amp volume control can always be used to increase or decrease the sensitivity. The recommended cartridge range is just a rough guide.
Input Impedance 47k Ohms
Cartridge compatibility Medium to high output range MM, from 2.2mV to 6.5mV
Low output MM or high output MC cartridges from 0.8mV to 2.2mV – 47k Ohms input impedance only
Frequency Response 10 Hz to 20 kHz +/- 0.5dB
Signal to noise ratio >80dB at 40dB gain or >70dB at 50dB gain
Maximum output 10V RMS, limited by its regulated power supply voltage
Switchable options Piano key (DIP) switch on-board selects the following
Capacitance Gain 140dB (x100) for medium to high output MM
Gain 250dB (316) for high output MC and low output MM
Low-Frequency filter 100pF or 200pF
RIAA flat or IEC low-frequency 20Hz roll-off (7950 µs)