The TKD is good the DACT vastly better as far as sound quality
I had them both in my Audio Note Kits M3 Pre amp. I felt the Dact was the better choice for sound quality. If you are still looking for a very good attenuator (bested the Dact IMHO) look at the Acoustic Dimension 41 stepped Attenuator. The price was about the same as the Dact and you have 17 more steps for attenuation.