This passive transformer box is ideal for adding subtle colour and iron sheen. Great for mixing and mastering.
Transformers: pair of vintage Telefunken NFLÜ 325 600ohm line
This type was mainly used in state-owned broadcasting houses for high level audio lines interconnecting studios.
Frequency Response: 20Hz - 20kHz. +/-0.3dB
DC resistances:
Primary: 13 ohms
Secondary 2:1 8 ohms
Secondary 1:2 26 ohms
Secondary 1:1 14 ohms
Impedance: ca. 600 ohms.
Dimensions: 3.1 * 3.7 * 1.7 (metric: 8 * 9.5 * 4.3cm)
Weight: 2.2lbs (1kg)
Additional technical information:
These are 600ohm line transformers. Connecting them to modern high impedance studio gear will give a gentle shelve-like treble boost.
Around +4dB @ 20kHz.
The treble boost effect of the Telefunkens is very nice sounding, not unlike a good passive inductor EQ.
