• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Tube pre for active Troels Ekta 2D

Good evening altogether,

I am looking for a DIY preamp to go with a pair of Troels Gravesen Ekta 2D. Goal is to add some of the tube warmth, sweetness, musicality (you know what I mean).

Might the Elekit TU8500 do the trick here? Any suggestions?


I hope that this solution will give a powerful, sweet, warm, detailled and balanced sound whilst making sure the electricity bill and room temp stay down. Do you agree/disagree? Any thoughts?



Best Regards from Vienna,

Johannes