This new 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 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. Designed to match the high-end EVOLUTION 50CD DAC/CD/Pre-amp. 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. At the heart of any good amplifier lies a good power supply; The EVOLUTION 50A uses a massive 200 Watt toroidal mains transformer with separate windings for high and low current analogue 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, 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 - who has much experience in the audio industry 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.
POWER OUTPUT:INTO 8 OHMS >55 Watts ; POWER OUTPUT: NTO 4 OHMS >85 Watts; MAX CURRENT >26 Amps ; THD < 0.005% 20Hz - 20Khz
FREQUENCY RESPONSE 10Hz - 100KHz +/- 2dB (Unbalanced); FREQUENCY RESPONSE 10Hz - 50KHz +/- 2dB (Balanced)
GAIN 33.3dB (x46) (Unbalanced) ; GAIN 27.0dB (x22.5) (Balanced) ; SLEW RATE > 30 V per µS ; INPUT SENSITIVITY 410mV
MAX INPUT VOLTAGE 5.4V and 10.8V r.m.s. ; V=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