Krell Evo 402e Power Amplifier

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Mint condition, one owner with original box.

£18,000.00 £7,990.00

Call Choice Hifi on 020 8392 1959 or to enquire about this product!


The Evolution 402e is the flagship stereo amplifier in the Evolution e Series utilizes the same technological advances as in the larger Evolution monaural amplifiers. The Evolution 402e is an extremely powerful stereo amplifier with the distinct advantage of a smaller footprint. As in its larger siblings, the Evolution 402e combines this power with a modest 2 watt power draw when in standby mode. Perfectly matched with an Evolution 202 preamplifier for stereo application, the Evolution 402e also shines as part of a home theater. In this application, the Evolution 402e gets mated with the Evolution 707 Reference Surround Preamplifier/Processor and an Evolution 403e Three Channel Amplifier for ultimate home theater performance.

Brand: Krell

Model Name/Number: Evo 402e

Price (RRP): £18000

Choice Hifi Price: £7990

Product Information:

Evolution 402e

Frequency Response

20 Hz to 20 kHz +0, -0.17 dB

<0.5 Hz to 125 kHz +0, -3 dB


Signal to Noise Ratio

>108 dB, wide band,unweighted, referred to full power output

>118 dB, “A”-weighted



25.4 dB


Total Harmonic Distortion

<0.02% at 1 kHz, at 400 W, 8 Ohms

<0.15% at 20 kHz, at 400 W, 8 Ohms


Input Impedance

Single Ended: 100 kOhms

Balanced: 200 kOhms

CAST: 70 Ohms


Input Sensitivity

Single Ended or Balanced: 3.04 V rms

CAST: 3.04 mA rms


Output Power

400 W RMS at 8 Ohms both channels driven

800 W RMS at 4 Ohms both channels driven

Output Voltage

160 V peak-to-peak

57 V RMS


Output Current

37 A peak


Slew Rate

100 V/µs


Output Impedance

<0.055 Ohms at 20 Hz

<0.064 Ohms, 20 Hz to 20 kHz


Damping Factor (referred to 8 ohms)

>145 at 20 Hz, referred to 8 Ohms

>125, 20 Hz to 20 kHz, referred to 8 Ohms



Two 2200 VA (4400VA total) for audio circuitry

One 10 VA for digital control circuitry


Power Supply Capacitance

188,000 µF


Power Consumption

Standby: 2 W

(High-current standby: 260W

Idle: 390 W

Maximum: 3800 W

Heat Output

Stand-by: 7 BTU/hr.

(High-current standby: 890 BTU/hr.)

Idle: 1300 BTU/hr.

Maximum: 6400 BTU/hr.



2 single-ended via RCA connector

2 balanced via XLR connector

2 CAST via 4-pin bayonet connector



2 pairs Krell binding posts



17.25 in. W x 9.75 in. H x 22.05 in. D

438 mm W x 248 mm H x 560 mm D



Shipped: 150 lb., 67.9 kg

Unit Only: 135 lb., 61.1 kg

Age: 5

Condition: 9/10

Voltage: 220/240/50Hz

Finish/Colour: Silver

Packaging? Yes

Accessories? Yes

Item Location: In Stock

Status: Second Hand

Dimensions 5708473 cm