Evolution 100P

Who needs a power amp?  Well, you do, if you use a digital or analogue pre-amplifier like the EVOLUTION 50CD or 100CD, with built-in volume control.  It is also possible you already own an integrated amplifier like the EVOLUTION 100A and wish to bi-amp your system to power difficult loudspeaker loads.

This new 115W (into 8 Ohms) power amplifier forms part of the new generation EVOLUTION 100 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.

Suggested System

sounds good with

The Evolution 100P will work very well in the following system. Please note the speakers quoted may need to be different depending on the size of room your system is to be used in.

Source: Evolution 100CD – USB DAC & CD player Speakers: Epos K1 - Epos K2 - Epos K3

The EVOLUTION 100P uses a massive 350 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-G power amplifier circuit, to the highly rated EVOLUTION 100A, 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 100P 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.

Technical Specificationdetailed technical information
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 @ 1KHz
THD < 0.002% 20Hz - 20KHz
SNR >102dB
Frequency Response 10Hz - 100KHz +/- 2dB Line
Gain 33.3dB (x46)
Input Sensitivity 650mV
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 2 Pairs of high quality binding posts
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

A simple unity gain pre-amplifier selects 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.

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