Sutherland Engineering
Sutherland SUTZ step-up transformer
Best solution for audiophiles pairing low-output moving coil cartridges with existing stages.
Elevate your vinyl experience with the Sutherland SUTZ step-up transformer. This specialized analog device uses innovative transimpedance technology to boost the output of your low-output, low-impedance moving coil cartridges, seamlessly integrating them with moving magnet phono stages. Drawing from the acclaimed Dos Locos flagship gain stage and sharing the chassis of the Little Loco Mk2, the SUTZ offers a sophisticated solution to cartridge matching challenges. It provides the benefits of an active transimpedance stage, even helping to reduce tube noise when paired with tube-based phonostages.
$3800.00
Owner Satisfaction
4.7
/ 5
Category Rank
133
/ 466
#133 in Phono Preamps
Price vs Category Average
-45%
Below average
Compatibility
20
/ Low-output moving coil cartridges (< ohm impedance)
Who it's for
- Audiophiles seeking a silent, interference-free signal path
- Vinyl enthusiasts with diverse moving coil cartridge collections
- Listeners demanding pure, distortion-free dynamic range
Who should skip it
- Budget-conscious hobbyists prioritizing value over boutique performance
- Users requiring precise, adjustable gain control for their system
- Owners with limited space near power supplies or motors
Performance breakdown
Transimpedance Fidelity
Innovative circuit design extracts exceptional detail from low-output moving coil cartridges.
Noise Floor Reduction
Effectively silences background hiss when paired with sensitive tube phono stages.
Cartridge Compatibility
Optimized specifically for low-impedance MC cartridges to ensure perfect signal matching.
Build Integrity
Robust chassis construction mirrors the high standards of the Little Loco.
System Integration
Seamlessly bridges the gap between specialized MC cartridges and standard MM inputs.
Signal Transparency
Maintains the pure, uncolored character of your vinyl playback chain.
Key Specs
Compatibility
Low-output moving coil cartridges (<20 ohm impedance)
Cartridge Support
Moving Coil (MC)
Circuitry Type
Solid State
Power Supply Type
External
Model Number
SUTZ
MPN
SUTZ
Features
- Boosts low-output MC cartridges
- Uses advanced transimpedance technology
- Integrates with MM phono stages
- Reduces tube noise with tube stages
- Derived from flagship Dos Locos design
- Shares chassis with Little Loco Mk2
- Ideal for low-impedance MC cartridges
What customers say
The Sutherland SUTZ step-up transformer earns high praise for its exceptional sonic transparency and very low noise floor, significantly enhancing low output Moving Coil cartridges. Users consistently report that the resulting sound is dynamic, detailed, and offers superb three dimensional imaging, revealing subtle nuances previously unheard. This unit is frequently cited as a major upgrade over standard phono stages. Build quality is regarded as robust and clean. While positioned in the premium price range, the consensus is that the transformative audio performance fully justifies the investment. Integration is simple, providing an immediate, noticeable improvement in musicality and coherence, making it a critical component for unlocking high end cartridge potential.
Know before you buy
The SUTZ is a step-up transformer designed to bridge the gap between a low-output moving coil (MC) cartridge and a standard moving magnet (MM) phono stage. It uses transimpedance technology to amplify the signal, allowing you to use high-performance MC cartridges with phono inputs that wouldn't otherwise have enough gain.
The SUTZ is specifically engineered for low-output moving coil cartridges with an internal impedance of less than 20 ohms. If your cartridge falls within this range, it is an ideal candidate for this device.
Unlike traditional passive transformers that rely on coils and magnets, the SUTZ uses active transimpedance circuitry derived from Sutherland’s flagship Dos Locos design. This approach provides a more consistent, high-fidelity signal transfer that avoids the common coloration or impedance matching issues found in passive units.
Yes, the SUTZ is particularly effective when paired with tube phono stages. By providing a clean, active gain boost before the signal reaches your tubes, it can help lower the noise floor and reduce the audible hiss often associated with high-gain tube amplification.
Yes, the SUTZ utilizes an external power supply. This design choice keeps the power circuitry separate from the sensitive audio signal path, which helps minimize interference and maintain signal purity.
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$3800