1201 DI (86.4k : 600)

The Kraftwerk 1201DI is a high-impedance direct input transformer crafted for applications where tone and musicality take precedence over sterile precision. Designed with vintage winding practices and voicing in mind, it emphasizes harmonic richness and depth.
This DI transformer is ideal for players and engineers seeking organic saturation, midrange warmth, and subtle coloration, especially in high-impedance instrument interfaces.
It uses traditional EI core construction, offering high inductance, wide bandwidth, and strong low-end performance, all while maintaining musical character at the core of its design.
 
 
 
Model
1201DI
Turns Ratio
12 : 1
Impedance Ratio
144 : 1
Nominal Impedance
86.4k : 600 Ω
Primary DCR
2.5 kΩ + 2.5 kΩ = 5 kΩ
Secondary DCR
30 Ω + 30 Ω = 60 Ω
Primary Inductance (100 Hz)
1753 H + 1750 H
Secondary Inductance
12 H + 12 H
Core Material
Permalloy 80%
Recommended Load
600–1k Ω
 
 
 
 
Frequency Response
Expected wideband performance based on high primary inductance.
Characterized by natural roll-off and enhanced harmonic content.
 
All measurements based on series–series winding configuration.
 
Includes triple EMI Faraday shielding and MuMetal magnetic protection for superior noise isolation.