1166 VTX (215 : 600)

The Kraftwerk 1166VTX is a meticulously crafted replica of the standard Marinair LO1166 output transformer, as found in the legendary Neve 1073. Developed over a full year and through more than 200 iterative builds, this version captures the sonic depth, midrange richness, and extended highs that define the original.
 
After comparing all modern replacements and clones, it became evident that none fully embodied the dimensional tone of the original. The 1166VTX was born to fill that gap — delivering a balance of heritage and modern refinement that no other current transformer has achieved.
 
 
Model
1166VTX
Turns Ratio
1 : 1.67
 
 
Nominal Impedance
215 : 600 Ω
Primary DCR
77 Ω + 8 Ω
Secondary DCR
20 Ω + 20 Ω
Primary Inductance
180 mh
 
 
Core Material
CRGO6
Core Format
EI57 Gapped
Recommended Load
600–2k Ω
 
Build Characteristics
Standard LO1166 electrical configuration
Gapped EI core for authentic low-end behavior
Custom-made coil forms and tooling
Matching layer structure, winding tension, and insulation
Enhanced depth and high-frequency extension compared to original
Full humbucking symmetry and precise leakage control
 
Frequency Response
Extremely balanced frequency curve with rich mids and open highs
Faithfully matches standard LO1166 tone with modern production precision
Built as a reference-grade version of the classic LO1166 (20+20 Ω secondary).
The perfect match for Neve-style preamps and high-end analog circuits.