Sunday, January 9, 2011

Krell Evolution 2250e and the Evolution 3250e

2250e - $8000
3250e - $10000

Blessed with a power supply outfitted with a 2,500 VA power transformer and 136,000 µF of capacitance, the Evolution 2250e is a powerhouse. Power output of 250 W per channel into 8 ohms and 500 W per channel into 4 ohms will drive any loudspeaker to its full dynamic capability.

The Evolution 3250e design uses the same power transformer but with additional capacitance, 163,200 µF total, insuring full performance when all three channels are being called upon simultaneously. An additional transformer for control and protection circuitry also provides power for a new energy efficient standby mode. Similar to turning off a 150W light that is always on in your house; standby power draw is only 2W. This 99% reduction in electrical usage also reduces heat output substantially. 
The high-current and high-voltage analog supplies have additional noise filtration circuitry to reduce high-frequency switching noise.