Krell Illusion II
Best high fidelity preamplifier for discerning audiophiles.
The Krell Illusion II stereo preamplifier offers a compelling blend of Krell's renowned audio engineering with added digital connectivity. It features a dual monaural circuit design and Krell's proprietary Class A iBias aesthetic, ensuring exceptional sonic performance. The Illusion II includes digital inputs supporting up to 24-bit/192kHz LPCM, processed by an ESS Sabre DAC. An optional, sophisticated crossover function allows for seamless integration of subwoofers and satellite speakers without compromising audio quality. This preamplifier is designed to be the centerpiece of a world-class audio system, delivering Krell's signature sound with enhanced versatility.
$7000.00
Owner Satisfaction
4.5
/ 5
Category Rank
390
/ 491
#390 in Phono Preamps
Price vs Category Average
+2%
Above average
Digital input support
24192
/ up to bit/kHz LPCM
Who it's for
- Audiophiles seeking uncompromised sonic purity and engaging musical reproduction.
- Discerning listeners prioritizing robust construction and lasting performance in their gear.
- Enthusiasts with high-end power amplifiers desiring precise system control.
Who should skip it
- Budget-conscious buyers or those new to high-end audio components.
- Individuals with limited space or seeking compact, minimalist audio solutions.
- Users expecting integrated digital streaming or advanced DAC functionalities.
Performance breakdown
Sonic Transparency
Zero feedback design delivers an incredibly clean and uncolored signal path.
Channel Separation
Dual monaural architecture ensures a wide, precise, and immersive soundstage.
Digital Versatility
ESS Sabre DAC integration handles high-resolution files with impressive musicality.
System Integration
Sophisticated crossover options make subwoofer blending seamless and highly accurate.
Volume Precision
Balanced resistor ladder control provides granular, distortion-free level adjustments.
Power Efficiency
Eco-friendly standby mode balances high-end performance with modern energy standards.
Key Specs
Digital input support
up to 24 bit/192kHz LPCM
Power supply
95 VA transformer and 40,000 µF capacitance
Standby power consumption
2W
Open-loop distortion
< 0.003%
Optional crossover frequencies
40Hz, 55Hz, 75Hz, 100Hz
Optional filter types
12dB, 24dB, 48dB Butterworth or 24dB Linkwitz-Riley
Features
- Sophisticated optional crossover for subwoofer/satellite systems
- Digital inputs with ESS Sabre DAC for high-resolution audio
- Dual monaural circuit design for superior channel separation
- Zero feedback, balanced Krell Current Mode design
- Balanced resistor ladder volume control
- Eco-friendly standby mode with low power consumption
What customers say
Customers consistently praise the Krell Illusion II for its exceptional sound quality, highlighting its remarkable transparency, detail, and dynamic range. Many reviewers note how it faithfully reproduces music with incredible clarity and an expansive soundstage, allowing the true character of recordings to emerge. The robust build quality and sophisticated design also receive high marks, reinforcing its premium feel and long term reliability. This preamplifier is celebrated for elevating the listening experience, making it a cherished component in high fidelity audio systems.
Know before you buy
The dual monaural design physically separates the left and right audio channels, which significantly reduces crosstalk. This results in a wider, more precise soundstage and improved imaging for your stereo system.
Yes, the unit features an optional, sophisticated crossover function. It allows you to select specific crossover frequencies and filter types to seamlessly blend subwoofers with your satellite speakers.
The Illusion II utilizes an ESS Sabre DAC to process digital inputs, supporting high-resolution audio up to 24-bit/192kHz LPCM. This ensures your digital sources are converted with high accuracy and minimal distortion.
Krell Current Mode is a zero-feedback design that prioritizes speed and bandwidth. By operating in the current domain rather than the voltage domain, it minimizes distortion and maintains a highly transparent, dynamic sound.
It includes an eco-friendly standby mode that reduces power consumption to just 2W. This allows you to keep the unit ready for use without drawing excessive electricity.
You can choose from four crossover frequencies—40Hz, 55Hz, 75Hz, and 100Hz. Additionally, the unit supports 12dB, 24dB, or 48dB Butterworth filters, as well as a 24dB Linkwitz-Riley filter for precise integration.
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