"Five Stars" – Hi-fi Choice Magazine
"May Set a New Benchmark," Says Stereophile
This Evolution 50A amplifier forms part of the next generation 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 aluminum. 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 Innovation 50A may well satisfy those expecting to pay $2,000 or more on an integrated amplifier, and free up more cash to spend elsewhere in the system," raves Robert J. Reina in the August 1, 2013 Stereophile. "The Creek Evolution 50A may set a new benchmark for what's possible at an affordable price."
"One of the very best sounding amplifiers on sale at or near its price," reports David Price in Hi-fi Choice magazine. "Sonically superb, impressively specified and decently screwed together, there’s nothing not to like here. As such, it should be right at the top of your audition list."
Massive 200-Watt Toroidal Transformer
At the heart of any good amplifier lies a good power supply. The Evolution 50A has a massive 200-watt toroidal transformer with separate windings for high and low current analog and digital circuitry. This produces a good power-to-weight ratio and low magnetic interference. Creek’s policy of paralleling several low impedance capacitors together to create an ultra-high specification capacitor for smoothing the DC also helps to produce a very powerful and accurate sound from such a relatively small amplifier.
New Bi-Polar Transistor Power Amplifier Circuit
Creek’s Senior Engineer, David Gamble, developed a completely new bi-polar transistor power amplifier circuit especially for the Evolution 50A with very high open-loop gain and low distortion. Featuring a pair of Sanken 15 Amp 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 with most loudspeakers.
David also developed a completely new analog preamp 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 2 phono preamp can be plugged in, substituting Line Input 1 for Phono. In addition, Line Input 5 is located on a 'Smart-Slot' removable panel. Should you want to connect a Creek tuner or DAC module, Line 5 input can be removed and replaced by either the AMBIT tuner or RUBY module.
The 50 series is the first Creek product to feature an OLED (Organic Light Emitting Diode) display. This white on black display provides higher clarity and resolution than a normal display and offers a wide range of customized graphic symbols. Display brightness levels can be changed or turn off when not required via the menu system.
"The Creek Evolution 50A may set a new benchmark for what's possible at an affordable price. And Creek has packed more features into this amplifier than he has with any of his earlier amps at any price. Finally, don't let the Evolution50A's modest 50W power rating fool you. During my listening, it was never stressed or seemed limited in power or dynamics, and that was when driving floorstanding speakers in a large listening room at loud levels. It never even got warm to the touch.
"The Innovation 50A may well satisfy those expecting to pay $2,000 or more on an integrated amplifier, and free up more cash to spend elsewhere in the system. And that's always a good thing."
- Robert J. Reina, Stereophile, August 1, 2013
"Five Stars" – Hi-fi Choice Magazine
"One of the very best sounding amplifiers on sale at or near its price, the Creek Evolution 50A also offers analogue radio and (later) DAC options, plus the full smash of facilities from tone controls to a rather handy push-on mute function from the volume control. Build is decent, finish is fine and that OLED display is nice to have, too. Indeed, it seems like Creek has methodically gone round and engineered out anything that reviewers like me might object to. Sonically superb, impressively specified and decently screwed together, there’s nothing not to like here. As such, it should be right at the top of your audition list. That’s progress for you!"
- David Price, Hi-fi Choice magazine