Jitter reduction devices


I have a very good, but older trans/dac combo and I am considering inseting a jitter reduction device such as a Monarchy DIP or Genesis Dig. Lens between the two. Do these devices always improve sound? I have heard in some cases the give all recordings a certain sameness. Does anyone have any experience with this? Any thoughts, comments, or recommendations are welcome. BTW my components are a Meta Research Laser 1 conntected to a Timbre TT1 Dac via an Ensemble Digiflux rca cable.
Thanks,
Jon
128x128jond
P1-A
Lens
Pro 32
Pro
Ultra Jitterbug
This is the best to last in rating. I had 2 '32's and a Lens at the same time.
I use a genesis digital lens. Used they are cheap and I feel are worth the money. It is a tweek and its not going to be the equvilant of a speaker upgrade but they do make a difference.

Intially I had a problem with it popping all the time but that was due to mismatched digital cables with the lens. Buying better digital cables eliminated that problem.
I use the monarchy and feel it smooths out the sound, my buddy tried one and he feels it takes something away. Could be system dependent?
I tried the Monarchy DIP 24/96 between a CAL Delta and Bel Canto DAC-1 (with two coax Cardas Lightnings). I preferred a single Cardas cable without the DIP as I found that to be more musical, but then I prefer a mellow/tube sound to super definition.