One remaining - Silver only

This new 55W (into 8 Ohms) power amplifier forms part of the new generation EVOLUTION 50 range of products. Housed in a slim case with engraved front panel and solid control knobs, it’s finished with either a black or silver brushed aluminium front panel.

The EVOLUTION 50P uses a massive 200 Watt toroidal mains transformer with separate windings for high and low current analogue and control circuitry. This solution produces a good power to weight ratio and low magnetic interference. Creek’s design policy of connecting several small low impedance capacitors in parallel creates an ultra-high specification capacitor to smooth the DC and helps to produce a very powerful and accurate sound from such a relatively small amplifier.

This power amplifier has a similar high-end, bi-polar transistor, class A/B power amplifier circuit, to the highly rated EVOLUTION 50A, also developed by David Gamble. It achieves very high open-loop gain and low distortion for a smooth and powerful sound. Featuring a pair of Sanken 15Amp power transistors, with built-in thermal compensation for rapid bias tracking performance, the EVOLUTION 50P Power Amplifier circuit has very low output impedance and is also able to deliver high output current. This combination will provide exceptional speed and control over most loudspeakers.

A simple unity gain pre-amplifier select between balanced XLR and direct un-balanced RCA inputs, to enable the user to input two different signals and select between either, on the fly, if required. It is fully protected from over-current, over-temperature and DC faults and will trigger the output and input relays to disengage immediately if an error occurs.

Technical Specification

detailed technical information

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)
Input Sensitivity	410mV
Input Impedance	47k Ohms unbalanced, 30k Ohms balanced
Crosstalk	-80dB at 1Khz
DC Offest	< +/-10mV
Slew Rate	>30 V per uS
Inputs	RCA unbalanced – XLR balanced
Outputs	1 Pair of high quality binding posts
Operating Voltages	110V/230V Switchable
Consumption (at idle)	<20 Watts (no standby)
Consumption (at full power)	350 Watts
Weight	7.5Kgs
Dimensions	430x60x280mm W/H/D