Creek Evolution 50A and 100A Integrated Amp

Creek Audio has been an integral part of the British Hi-Fi industry for the past 30 years. During this time, the company has never deviated from its founding precept; purity of sound with quality built products at affordable prices. Here’s a couple of examples:

Evolution-50A-Front-Silver Creek-Evolution-50A-Rear-v2

The Creek Evolution 50A Integrated Amplifier. *pictured above*
This 55 Watt per channel amplifier delivers plenty of bang for the buck, thus more effectively countering any diminishing returns. Housed in a slim case with engraved front panel and solid control knobs, it’s finished in either black or silver brushed aluminium. An ingenious new push button design has been developed for it, offering excellent tactile feel and backlit optical indication of usable functions for optimum user-friendliness.
The EVOLUTION 50A uses a massive 200 Watt toroidal mains transformer with separate windings for high and low current analogue and digital circuitry.
Then there’s this bit of unique offering: It has multiple input options, switched electronically or via gold contact relays, plus electronic Volume, Balance and Tone controls. For Vinyl fans, a Sequel 2 Phono pre-amp can be plugged-in, substituting Line Input 1 for Phono. In addition, Line input 5 is located on a Smart- Slot removable panel. Should the user want to fit a Tuner or DAC module, Line 5 input can be removed and replaced by either the AMBIT tuner or RUBY module. For more info, see link below:
http://www.creekaudio.com/integrated-amplifiers/evolution-50a/

The technical stuff:
POWER OUTPUT >55 Watts into 8 Ohms
POWER OUTPUT >85 Watts into 4 Ohms
CONTINUOUS CURRENT >8.5 Amps (sine wave)
MAX CURRENT >26 Amps, current burst into 0.5 Ohms
OUTPUT IMPEDANCE <0.1 Ohms @ 1Khz
THD < 0.005% 20Hz – 20Khz
SNR >102dB
FREQUENCY RESPONSE 10Hz – 100KHz +/- 2dB Line
GAIN 33.3dB (x46) via power amp input
INPUT SENSITIVITY 410mV
CROSSTALK -80dB at 1Khz
DC OFFEST < ±10mV
SLEW RATE > 30 V per µS
PRE-AMP INPUTS 5x RCA unbalanced – 1x Balanced XLR
POWER-AMP INPUTS Input 3 & 4via RCA or XLR
OUTPUTS 1 Pair
HEADPHONE OUTPUT Dedicated low impedance amp (<50 Ohms)
IR BUS Powered output for IR repeater
OPERATING VOLTAGES 110V/230V Switchable
CONSUMPTION (AT IDLE) <20 Watts
CONSUMPTION
(AT FULL POWER) 350 Watts
WEIGHT 7.5Kgs
DIMENSIONS 430x60x280mm W/H/D

Here’s a fairly good review I found for the Evolution 50A: https://youtu.be/vQ_VkXy7Mg0

Evolution-100A-Front-LQ Evolution-100A-RearLQ

The Creek Evolution 100A is similar to the 50A but with more power (110 WPC) and a few extra features. (pictured just above)
The EVOLUTION 100A is housed in a similar slim case with engraved front panel and solid metal control knobs as the EVOLUTION 50A. It is available with either a Black or Silver brushed aluminium front panel and uses the same ingenious soft push button design as the EVOLUTION 50 series.
The EVOLUTION 100A has been equipped with 2 sets of high quality loudspeaker binding posts, with local and remote switching for A & B outputs. Optional extras include the ability to plug the Sequel mk2 Phono pre-amp inside and add the AMBIT FM/AM radio or RUBY DAC/Bluetooth/FM radio module to the expansion slot on the rear panel.

The EVOLUTION 100A uses a massive 360 Watt, low profile, toroidal mains transformer, with multiple windings for high and low voltages and current, to separate the power amp, pre-amp and digital circuitry.
For more info click here: http://www.creekaudio.com/integrated-amplifiers/evolution-100a/

POWER OUTPUT >110 Watts into 8 Ohms
POWER OUTPUT >170 Watts into 4 Ohms
CONTINUOUS CURRENT >8.5 Amps (sine wave)
MAX CURRENT +/- 26 Amps, current burst into 0.5 Ohms
OUTPUT IMPEDANCE <0.05 Ohms – 20Hz to 20KHz
THD < 0.002%
SNR >102dB – Line Input
FREQUENCY RESPONSE 10Hz – 100KHz +/- 2dB Line
GAIN 33.3dB (x46) via power amp input
INPUT SENSITIVITY 650mV
CROSSTALK -80dB at 1Khz
DC OFFEST < +/-10mV
PRE-AMP INPUTS 5x RCA unbalanced – 1x Balanced XLR
POWER-AMP INPUTS Input 3 & 4via RCA or XLR
OPTIONAL TUNER AMBIT FM/AM plug-in module
OPTIONAL DAC RUBY DAC – USB,SPDIF,Toslink, Bluetooth & FM Tuner
OUTPUTS 2 Pairs
HEADPHONE OUTPUT Dedicated low impedance amp (<50 Ohms)
IR BUS Powered output for IR repeater
OPERATING VOLTAGES 110V/230V Switchable
CONSUMPTION (AT IDLE) <20 Watts (no standby)
CONSUMPTION
(AT FULL POWER) 500 Watts
WEIGHT 9Kgs
DIMENSIONS 430x60x280mm W/H/D