I've used and enjoyed the DIP and thought the original was more effective than the upsampling version. I've also tried the GW Labs and Perpetual Technolgies units. I didn't care much for the Perpetual unit but to be fair, maybe it required a much longer break-in period than I gave it.
The best external de-jitterer I've ever used is the dbx Quantum mastering processor. De-jittering is only a one function of this box but probably the only one that is applicable to audiophiles.
What I use now is by far the most cost effective solution I've found. It's the Tent X03 reclocker. I installed it in a Marantz CD-67SE and the results are incredible. The downside is that it must be installed in a standard redbook player and that's not particularly easy to do. If you are unfamiliar with component level work on players, it would be necessary to find someone to do it for you. However, the results compete with truly high end players.
The best external de-jitterer I've ever used is the dbx Quantum mastering processor. De-jittering is only a one function of this box but probably the only one that is applicable to audiophiles.
What I use now is by far the most cost effective solution I've found. It's the Tent X03 reclocker. I installed it in a Marantz CD-67SE and the results are incredible. The downside is that it must be installed in a standard redbook player and that's not particularly easy to do. If you are unfamiliar with component level work on players, it would be necessary to find someone to do it for you. However, the results compete with truly high end players.