KRELL EVOLUTION 302e

Second-hand. In good conditions. Shows signs of wear as seen in the photos. Includes original packaging and manual.

The Krell Evolution 302e is a power amplifier that combines outstanding performance with an imposing design. Weighing 55 kg (121 lbs) and featuring generous dimensions, it houses an oversized 3000 VA toroidal transformer, enabling it to double its power as impedance decreases: 300 W per channel at 8 ohms, 600 W at 4 ohms, and an impressive 1200 W at 2 ohms, with a peak current of 35 amperes. Despite its substantial build, the aluminum chassis lends a refined elegance, making it a component meant to be displayed rather than hidden.

Operation is straightforward and intuitive. The amplifier features balanced, single-ended, and Krell’s proprietary CAST inputs. The speaker terminals, compatible only with spade connectors, ensure a secure connection. Standby power consumption is just 2 W, meeting European efficiency standards. Upon powering on, the unit performs a self-diagnosis through a sequence of relays and indicator lights before stabilizing in operational mode. Cooling is optimized with massive heat sinks, ensuring silent operation and maintaining a controlled temperature even at high volume levels.

Technologically, the Krell Evolution 302e utilizes its innovative Active Cascode Topology™, which distributes voltage across multiple transistor arrays, improving linearity, stability, and reliability while minimizing the need for negative feedback. The result is an amplifier with absolute neutrality, delivering extraordinary bass weight and articulation, a transparent midrange, and an extended, airy high-frequency response. Every detail of a recording is reproduced with surgical precision, without coloration or compromise.

With virtually unlimited power reserves and cutting-edge engineering, the Krell Evolution 302e represents a pinnacle for those seeking ultimate performance. Its combination of innovation, impeccable construction, and crystal-clear sound makes it a long-term investment capable of satisfying the most demanding listeners.

Technical specifications:

• Frequency Response:

  • 20 Hz - 20 kHz (+0, -0.10 dB)
  • <0.5 Hz - 180 kHz (+0, -3 dB)

• Signal-to-Noise Ratio:

  • Wideband, unweighted: >107 dB
  • "A" weighted: >117 dB

• Gain: 25.5 dB

• Total Harmonic Distortion:

  • <0.02% at 1 kHz, 300 W at 8 ohms
  • <0.15% at 20 kHz, 300 W at 8 ohms

• Input Impedance:

  • Single-ended: 100 kOhms
  • Balanced: 200 kOhms
  • CAST: 75 Ohms

• Input Sensitivity:

  • Single-ended or balanced: 2.60 V rms
  • CAST: 2.60 mA rms

• Output Power (all channels driven):

  • 300 W rms at 8 Ohms
  • 600 W rms at 4 Ohms
  • 1200 W rms at 2 Ohms

• Output Voltage:

  • 139 V peak-to-peak
  • 49 V rms

• Output Current: 35 A peak

• Slew Rate: 120 V/µs

• Output Impedance:

  • <0.040 Ohms at 20 Hz
  • <0.053 Ohms from 20 Hz to 20 kHz

• Damping Factor (referenced to 8 Ohms):

  • 200 at 20 Hz

  • 150 from 20 Hz to 20 kHz

• Inputs:

  • 2 single-ended via RCA connector
  • 2 balanced via XLR connector
  • 2 CAST via 4-pin bayonet connector

• Outputs:

  • 2 pairs of Krell binding posts

• Dimensions: 438 mm (W) × 248 mm (H) × 525 mm (D)

• Weight: 54.3 kg (119.7 lbs)