KR AUDIO KRONZILLA SXI

Pure Class A Tube Integrated Amplifier

The KR AUDIO KRONZILLA SXI is a high-end single-ended stereo tube integrated amplifier designed for audiophiles seeking detailed, natural, and dynamic sound reproduction. Operating in Pure Class A with zero negative feedback, it uses two powerful T1610 output tubes to deliver 50 watts per channel.

Its hybrid design combines tube amplification with a solid-state preamplifier, aiming to deliver fine musical detail, rich harmonics, natural instrument decay, and controlled bass.

Key Features

• Pure Class A Operation: Designed for consistent, high-quality musical reproduction.
• Single-Ended Tube Design: Uses two KR Audio T1610 output tubes.
• Zero Negative Feedback: Operates without feedback in the amplifier circuit.
• Hybrid Architecture: Features a solid-state preamplifier with mechanical reed relays.
• High Resolution and Musical Detail: Designed to reproduce subtle transients, harmonic textures, and long instrument decays.
• Dynamic Performance: Combines fast response and bass control with the tonal and spatial qualities associated with tube amplification.
• Remote Control: Allows adjustment of volume and input selection.

Technical Specifications

• Amplifier Type: Stereo Tube Integrated Amplifier
• Operating Mode: Single-Ended, Pure Class A
• Output Tubes: 2 × T1610
• Output Power: 2 × 50 W RMS (THD = 3%)
• Frequency Response: 20 Hz – 20 kHz (−3 dB)
• Output Impedance: 4 / 8 ohms
• Inputs: 4 × RCA line inputs
• Input Sensitivity: 0.75 V RMS / 47 kΩ at 50 W
• Damping Factor: Approximately 2.9
• Power Consumption: 500 VA
• Power Requirements: 115 / 230 V AC, 50/60 Hz
• Dimensions (W × H × D): Approximately 38.5 × 41.5 × 55 cm
• Weight: Approximately 50 kg