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Evolution One

Evolution One

Evolution One

Evolution One
Monaural power amplifier

The Evolution One amplifier is the result of Dan D'Agostino's unrelenting pursuit of the most realistic musical reproduction possible in the home. Immensely powerful, the Evolution One is a monaural design that features a separate power supply for each channel. Stunning aesthetics hint at the advanced amplifier circuitry housed within its walls.
The 450 watt Class A circuitry features the latest advancements in Krell amplifier design including the proprietary Krell Current Mode topology and the latest versions of the Krell Sustained Plateau Bias and CAST circuitries.
Available in silver or black

SPECIFICATIONS

  
Frequency response 20 Hz to 20 kHz ±0.05 dB
0.6 Hz to 220 kHz +0, –3 dB
Signal-to-noise ratio 118 dB, “A”-weighted
Gain 25.8 dB
Total harmonic distortion <0.01% at 1 kHz, at 450 W, 8 Ohms
<0.1% at 20 kHz, at 450 W, 8 Ohms
Input impedance Balanced: 100 kHz
CAST: 50 Hz
Input sensitivity Balanced: 3.08 V RMS
CAST: 3.08 mA RMS
Output power 450 W RMS at 8 Ohms
900 W RMS at 4 Ohms
1800 W RMS at 2 Ohms
Output voltage 170 V peak-to-peak
60 V RMS
Output current 57 A peak
Slew rate 100 V/us
Power consumption Standby: 225 W
Idle: 300 W
Maximum: 3600 W
Inputs 1 balanced via XLR connector
1 CAST via 4-pin bayonet connector
Outputs 1 pair Krell binding posts
Dimensions
Amplifier chassis: 15.8 in. W x 6.2 in. H x 21.5 in. D
40 cm W x 15.8 cm H x 54.7 cm D
Power supply chassis: 15.8 in. W x 6.4 in. H x 20.5 in. D
40 cm W x 16.1 cm H x 52.2 cm D
Amplifier channel: 15.8 in. W x 12.5 in. H x 21.5 in. D
40 cm W x 31.6 cm H x 54.7 cm D
Weight
Amplifier chassis: Shipped: 70 lbs., 31.7 kg
Unit Only: 55 lbs., 24.9 kg
Power supply chassis: Shipped: 110 lbs., 49.8 kg
Unit Only: 95 lbs., 43 kg

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