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 Evolution 3250e


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Frequency response 20 Hz to 20 kHz +0.0, -0.07 dB at 8 Ohms 0.3 Hz to 150 kHz +0.0, -3 dB at 8 Ohms Signal to noise ratio "A" weighted 116 dB THD < 0.020% at 1 kHz, at 250 W, 8 Ohm Load < 0.15% at 20 kHz, at 250 W, 8 Ohm Load Output Voltage 47 Vrms or 133 V peak to peak Output Power 250 Wrms per channel at 8 Ohms 500 Wrms per channel at 4 Ohms Output Current 20 A peak Output Impedence < 0.060 Ohms at 20 Hz < 0.067 Ohms, 20 Hz to 20 kHz Slew Rate 80 V/µs Damping Factor < 130 at 20 Hz, referred to 8 Ohms < 120, 20 Hz to 20 kHz, referred to 8 Ohms Power Consumption Standby: 2 W High Current standby: 50 W Idle: 125 W Maximum: 2400 W         




Precision and power characterize the Evolution 3250e amplifier. Identical in sound quality and power output as the Evolution 2250e, the foundation of the Evolution 3250e is circuitry and engineering found in the larger Evolution e Series amplifiers. Utilizing the same advanced high speed output devices, massive power supplies, and unique Krell Current Mode circuitry, the Evolution 3250e amplifier elevates movie listening to an audiophile experience.


The latest manufacturing technologies are used throughout the design including surface mount circuit pathways. Surface mount circuitry increases the usable real estate on a circuit board and allows for a more sophisticated circuit in the same area. Surface mount circuitry shortens circuit path lengths, eliminates parasitic capacitance and improves bandwidth.

PRODIGIOUS POWER COUPLED TO LOW ENERGY DRAW  Blessed with a power supply outfitted with a 2,500 VA power transformer and 163,200 µF of capacitance, the Evolution 3250e 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. 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 substantially reduces heat output. The high-current and high-voltage analog supplies have additional noise filtration circuitry to reduce high-frequency switching noise.

SMALLER, ELEGANT CHASSIS  Housed in elegant silver or black brushed anodized Aluminum, the Evolution 3250e is the smallest amplifier in the Evolution e Series. Featuring a 4U (7" High) profile, the Evolution 3250e includes mounts for rack installations bringing elegance not typically found in rack mountable amplifiers. The stylish Aluminum faceplate features the blue power ring and low draw standby mode shared by all Evolution e Series amplifiers.