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Creek Evolution 50A Integrated Amplifier

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Ex VAT: £749.17
An impressive, flexible and hugely accomplished integrated amplifier for the money. We also sell its bigger brother, the award winning Creek Evolution 100A.

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Power Per Channel (8ohms) 55W
Warranty length 2 Years
Brand Creek Audio
Product Award What HiFi Award 4 Stars

Tech Specs

 Power Output into 8 Ohms: >55 Watts
 Power Output into 4 Ohms: >85 Watts
 Max Current: >26 Amps
 THD: < 0.005% 20Hz – 20Khz
 Freq Resp: 10Hz–100KHz +/- 2dB (Unbal)
 Freq Resp: 10Hz – 50KHz +/- 2dB (Bal)
 Slew Rate: > 30 V per µS
 Gain: 33.3dB (x46) (Unbalanced)
 Gain: 27.0dB (x22.5) (Balanced)
 Input Sensitivity: 410mV
 Max Input Voltage: 5.4V and 10.8V r.m.s.
 Separation: -80dB
 SNR: >102dB
 Output Impedance: <0.1 Ohms @ 1Khz
 Outputs: 1 Pair
 Headphone output: Yes
 Speaker Selector: No
 IR Input: Powered output for IR repeater
 Operating Voltages: 110V/230V Switchable
 Consumption (at idle): 20 Watts
 Consumption (at full power): 350 Watts
 Dimensions (WDH): 430 x 60 x 280mm 

 Weight: 7.5Kgs

Product Description

Creek Evolution 50A integrated amplifier forms the start of the next generation of Evolution 50 range of products. 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.

Power Amplifier

The Evolution 50A uses a 200 Watt toroidal mains transformer with separate windings for high and low current analogue and digital circuitry. This solution produces a good power to weight ratio and low magnetic interference.

Creek’s policy of paralleling several low impedance capacitors to create an ultra-high specification capacitor to smooth the DC also helps to produce a very powerful and accurate sound from such a relatively small amplifier.


Creek’s Senior Engineer David Gamble has much experience in the audio industry. He has developed a completely new bipolar transistor power amplifier circuit especially for the Evolution 50A with very high open-loop gain and low distortion.

Featuring a pair of Sanken 15Amp power transistors, with built-in thermal compensation for rapid bias tracking performance, the Power Amplifier circuit has very low output impedance and can produce high output current. This combination will provide exceptional speed and control over most loudspeakers.

Preamp Circuit

David also developed a completely new analogue Pre-amp circuit, providing high levels of flexibility and control, via unbalanced or balanced inputs. It has multiple input options, switched electronically or via gold contact relays, plus electronic Volume, Balance and Tone controls.

For Vinyl fans, a Sequel Phono pre-amp can be plugged-in, substituting Line Input 1 for Phono. In addition, there is another input available, should the user want to fit a Tuner module. The computer control will sense this and respond accordingly.

Matching 50CD

Excellent measured and sonic performance has been achieved with this analogue integrated amp, but when using digital input signals via the matching Evolution 50CD DAC and Pre-amp, the analogue pre-amp can be bypassed completely. The Evolution 50CD has a very high-end volume control in the digital domain and ‘Class-A’ balanced audio outputs. Connecting the output directly to the “Power amp direct” inputs elevates the performance to an even higher level.

OLED Display

This is also Creek’s first product to feature an OLED (Organic Light Emitting Diode) display. This white on black display provides higher clarity and resolution than a normal display. Brightness levels can be changed or the display made to turn off when not required, via the menu system.

Press Reviews

  • 'A musical amp that strikes a good balance between expression and excitement.' (What Hi-Fi Magazine 2014)
  • 'We tip our hats to Creek. Its Evolution 50A amp has come into a market that’s dominated by giants like Rega, Naim and Cyrus at this price, and duly holds its own.' (What Hi-Fi Magazine 2014)
  • 'It has the entertainment factor that’ll have you listening to music for hours on end, and that says a lot.' (What Hi-Fi Magazine 2014)
  • "Dynamically it was superb... it maintained rhythmic cohesion while serving up vast amounts of grunt without complaint." (Hi-Fi News Magazine May 2013)

  • "A brilliant all round performer and epic value for money" (Hi-Fi News Magazine May 2013)

  • "Like: Detailed, musical sound; reasonably powerful; flexible; well made. Dislike: Nothing at all at the price. Verdict: The class of the affordable integrated amplifier field, this new Creek deserves to succeed." (Hi-Fi Choice magazine April 2013)

Customer Reviews

  • Vic Walsh

    9 Apr 2016

    Just taken delivery of a silver Creek Evolution 50a amp. It's replacing an Arcam Alpha 10 Power Amp and integrated running as a pre amp which in turn and relatively recently replaces some Audiolab 8000 pre and power amps.

    The little creek had a lot to live up to then.

    A day in with listening to various sources, ( Pc, Cd, Turntable and tuner) I'm very pleased, the amp has the thump I liked from The arcams and the subtlety of the Audiolab.

    I opted for the on board tuner and phono board options and fitted these myself with no issues at all.

    I'm more impressed with the phono board than with a Rega phono amp (fono, not the fono mini!) and the tuner sounds excellent.

    Al thogether, this Little creek is a very worthy contender, I'm nit missing the Arcams or the Audiolab at all.

    Audio affair dud a splendid job of getting my amp to me in a reasonable period of time also.

  • Kev

    24 Jul 2014

    I've had the Evolution50A for about 3 months now and have been very impressed with it. i bought it to re place a Cambridge Audio amp in a 2.1 sound system but soon realised it was far more capable than I expected. Coupled to a CA stream magic 6 and a pair of PMC twenty 21's, it sounds very impressive. Detail and transparency is very good as is sound stage. Musically it is very engaging and timing is spot on.
    Highly recommended.
  • Ian Ringstead

    9 Oct 2013

    I needed a new amp with a headphone output and a balanced input that was compact and not a budget buster.Having read two excellent reviews on the Creek I decided to take the plunge .Build quality is fine but will not compete with the Japanese amps out there for similar outlay, but then UK companies tend to put the money into the inside components rather than make a superb case but lack overall sound quality.It is hard to get the balance right given the budget constraints Creek would have had , but the designer I feel has got it spot on for sound and good facilities.Yes power output is not massive , but in a modest sized room with fairly efficient speakers it seems to cope well.The remote is well equipped and responsive and does everything you could ask .All in all a great mid price budget amp and with the balanced input that I use with my Project RS phono stage I use.Superb value.
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Contact Details

UK Local Rate Number
0844 50 403 50

Sales Landline
0121 224 7300/7401

Customer Services Landline
0121 224 7350/7351

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