M600ST (600:600)

M600ST (600 : 600 Ω)
The Kraftwerk M600ST is a mastering-grade line output transformer with roots in the iconic Marinair family. With a true 600:600 Ω ratio and nearly double the core mass compared to typical designs, the M600ST delivers a powerful low end, extended headroom, and rich harmonic weight—while retaining the smoothness and character of its vintage predecessors.
Designed for engineers who need uncompromising depth and clarity in critical output stages, this model merges modern performance with vintage soul.
 
 
 
Model
M600ST
Turns Ratio
1 : 1
Impedance Ratio
1 : 1
Nominal Impedance
600 : 600 Ω
DCR
14 Ω (P1) / 14 Ω (P2) / 33 Ω (S1) / 33 Ω (S2)
Primary Inductance (100 Hz)
5.8 H + 5.8 H
 
 
Core Material
CRGO M6
Core Format
EI57 Ungapped
Recommended Load
600–2k Ω
Frequency Response
±1 dB from 4 Hz to 100 kHz
 
 
Mastering-ready 600:600 line transformer with unmatched bottom-end depth and low distortion.
Optimized for high-resolution audio paths, summing buses, and output stages where musical integrity is paramount.
Vintage top-end smoothness meets modern control and symmetry.