soulution 326 preamplifier
Best reference-grade preamplifier for audiophiles demanding absolute signal purity.
Experience unparalleled audio purity with the soulution 326 preamplifier. Engineered to amplify or attenuate signals without alteration, it features an unbalanced design and physically separated channels for optimal performance. Enjoy precise volume control through an 80-step relay system and exceptionally wide bandwidth for minimal phase shift. Optional phono and DAC modules offer expanded functionality, including DXD conversion and zeroPhase processing, making it a reference-grade component for the most discerning audiophiles seeking an uncompromised listening experience.
$21975.00
Owner Satisfaction
4.8
/ 5
Category Rank
12
/ 58
#12 in Audio Amplifiers
Price vs Category Average
+41%
Above average
Frequency Response
023
/ – MHz (-dB)
Who it's for
- High-end collectors valuing Swiss engineering and long-term component reliability
- Purist audiophiles seeking absolute signal fidelity and sonic transparency
- Critical listeners wanting to uncover hidden micro-details in recordings
Who should skip it
- Modern listeners requiring integrated digital streaming or DAC functionality
- Budget-conscious music lovers seeking accessible high-fidelity audio
- System builders lacking top-tier ancillary components for optimal performance
Performance breakdown
Signal Transparency
The circuit design preserves the original recording with near-perfect sonic accuracy.
Volume Precision
The 80-step relay system offers granular control for perfect listening levels.
Channel Isolation
Physically separated channels eliminate crosstalk for a vast, immersive soundstage.
Bandwidth Capacity
Extremely wide frequency response ensures zero phase shift in the audible range.
Noise Floor
Virtually silent operation allows the finest musical details to emerge clearly.
System Versatility
Optional DAC and phono modules provide high-end flexibility for modern setups.
Key Specs
Frequency Response
0 – 2MHz (-3dB)
Total Harmonic Distortion (THD)
< 0.0001%
Spot Noise
< -140dBV/sqrt(Hz)
Dimensions (WxDxH)
430 x 350 x 142 mm
Weight
~10kg
Power Supply
100 – 240 V (50 – 60 Hz)
Analog Inputs
2 x balanced (XLR), 2 x unbalanced (RCA)
Gain (unbalanced output)
– 79 to + 0dB
Features
- Absolute signal purity for uncolored sound
- Unbalanced design minimizes signal path
- Optimal channel separation
- Precise 80-step relay volume control
- Silent volume adjustments
- Extremely wide bandwidth beyond 2MHz
- Optional high-performance phono stage
- Optional advanced DAC with DXD conversion
What customers say
The Soulution 326 preamplifier is widely celebrated for its extraordinary sonic purity and technical mastery. The core theme among users is its remarkable transparency, often described as a straight wire with gain, allowing source material to emerge with unparalleled clarity and dynamic realism. Listeners consistently praise its ability to reveal subtle musical details through fast transient response. Furthermore, the robust build quality, reflecting precision Swiss engineering, reinforces its status as a lasting investment. While the premium price limits accessibility, those who acquire the 326 express profound satisfaction, viewing it as the essential centerpiece for unlocking a reference grade audio system's full potential.
Know before you buy
Unlike a traditional potentiometer that can introduce noise or channel imbalance over time, the 80-step relay system uses high-precision resistors to adjust volume. This ensures perfect channel matching and absolute transparency, as the signal path remains clean and free of mechanical wear.
The base unit is a pure analog preamplifier, but it is designed to be modular. You can install optional phono stage and DAC modules to accommodate vinyl playback or high-resolution digital sources directly within the chassis.
While the human ear cannot hear frequencies up to 2MHz, this exceptionally wide bandwidth ensures that the preamplifier handles the audio signal with minimal phase shift. This results in a more natural, coherent soundstage and improved transient response across the audible spectrum.
The 326 features both balanced (XLR) and unbalanced (RCA) inputs, allowing for flexible connectivity. The internal circuitry is optimized to maintain signal purity regardless of the input type, ensuring your source components perform at their best.
The zeroPhase technology is designed to eliminate phase errors introduced during the digital-to-analog conversion process. By correcting these timing inaccuracies, the DAC provides a more precise and realistic reproduction of the original recording.
The 326 is designed for transparency and attenuation, with a gain range of -79dB to 0dB. It is best suited for systems where your power amplifier provides the necessary gain, allowing the preamplifier to act as a perfectly neutral control center.
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$21975