1454 RL EMI TECH STYLE (2400 : 600)

The Kraftwerk 1454RL is a line input transformer inspired by the EMI-Neve tradition of transformer revoicing. Based on the classic T1454 microphone transformer, this model has been reversed, revoiced, and refined for modern line-level applications.
 
Unlike the original EMI method—which prioritized tone over hum rejection—this version incorporates fully symmetrical hum-bucking windings. The result is a transformer that preserves the harmonic richness and mid-forward character of the original, while delivering the low-noise performance expected in today’s studio environments.
 
 
Model
1454RL
Turns Ratio
2 : 1
Impedance Ratio
4 : 1
Nominal Impedance
2400 : 600 Ω
Primary DCR
136 Ω + 136 Ω = 272 Ω
Secondary DCR
23 Ω + 23 Ω = 46 Ω
Primary Inductance (100 Hz)
36 H + 36 H
Secondary Inductance
10 H + 10 H
Core Material
Permalloy 80%
Recommended Load
600–2k Ω
 
 
Frequency Response
Expected extended bandwidth with musical midrange character.
Delivers smooth saturation and balanced performance at line level.
All measurements based on series–series winding configuration.
Alternate winding configurations available on request.
 
Includes triple EMI Faraday shielding and MuMetal magnetic protection for superior noise isolation.