1366 ST (600:600)
The Kraftwerk 1366ST is a matched stereo set of 600:600 output transformers, precisely tuned to deliver phase and level consistency across both channels. Based on the acclaimed Kraftwerk 1366 and inspired by the legendary Marinair LO1366, this model brings classic British console tone into a modern dual-channel format.
Each transformer is hand-selected and measured for tight tolerances, then integrated into a stereo-ready assembly featuring high-quality balanced XLR connectors — making installation clean, fast, and studio-ready.
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Model | 1366ST (Stereo Set) |
Channels | Dual / Stereo (matched pair) |
Turns Ratio | 1 : 1 |
Impedance Ratio | 1 : 1 |
Nominal Impedance | 600 : 600 Ω |
DCR | 11 Ω (P1) / 11 Ω (P2) / 28 Ω (S1) / 28 Ω (S2) |
Primary Inductance (100 Hz) | 11 H |
Core Material | CRGO M6, ungapped |
Core Format | EI57 |
Frequency Response | ±3 dB from 13 Hz to 55 kHz |
Max Level (1% THD @ 50 Hz) | +22 dBu @ 600 Ω load |
Connectors | Integrated Balanced XLR |
Matching Tolerance | < 0.2 dB amplitude, < 2° phase (20 Hz–20 kHz) |
Applications
Stereo mastering output
Dual-channel outboard gear
Line balancing and ground loop elimination
Passive summing amplifiers with symmetrical drive
Frequency Response
±3 dB from 13 Hz to 55 kHz Tested with 600 Ω load, 150 Ω source
This stereo set is hand-matched and optimized for symmetrical imaging, accurate channel balance, and consistent coloration.