SL4K-E49

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This Preamp is a recreation of a Classic Preamp design used in a 4000E Desk. The preamp section is based on the E149 schematics. This Preamp design was supposed to be the transformerless version of the E01 Preamp. So this Preamp was intended to mimic a transformer behaviour. This Preamp uses two super matched dual Transistors AS194H for the Input Signal. In the Original there were two MAT02 used, since the specs of the AS194H are totally close to that Original Part we use this Transistor without any difference in Sound. The Preamp design itself is a mixture of Discrete Input and Op Amp Gain Stages. In the Original both Stages are controlled by a dual Pot, we changed to a stepped Gain Pot for more accuracy and recallability. The Design has a super matched Input and since there are more discrete Transistors working for the sound the preamp adds more grit and space to the signal. The Sound of this Preamp is really powerful and has a dynamic character that mimics a transformer and makes it versatile for most productions. Due to the high quality Op Amps the Preamp achieves also a clear frequency response.

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The Addons of this Preamp are Peak LED and a full Meter, which can be selected Pre or Post Fader. The Fader at the End of the Preamp module gives the most flexible options to make this Preamp use in different situations. In that combination of Preamp and Fader there are already a lot of possibilities for sound colouration with the Preamp. In addition we added a variable Low and High Cut Filter, to clean up the Signal before recorded and DIYRE compatible Colour Modul Option to add another Colour to this preamp.

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