I briefly tried a Placette passive with a DNA-1 Deluxe and it worked just fine. As someone noted earlier, make sure that your source has a reasonably low output impedance.
I personally found both the Placette Passive and Placette active to provide better resolution than a Bent unit. YMMV.
I personally found both the Placette Passive and Placette active to provide better resolution than a Bent unit. YMMV.