Having been the proud owner of the Slingbox Pro for the last three years I decided to upgrade to the Pro-HD as Slingmedia had announced that the Pro was no longer part of the future path and would not work with Slingplayer for iPad. I thought I had waited long enough for the initial UK teething issues to be resolved.
I disconnected my Pro & dropped in the Pro-HD into the same audio/video wiring from my Sky HD box. It was up and running within 15 minutes.
Using Slingplayer on the PC the video is excellent, far superior to the Pro and in particular the HD channels, but the sound has an echo, the level of the echo varies from no too bad to awful. I could replicate the same using my iPad.
I did a search on the sling forum and it seems there are a few people out there with this sound echo issue.
Luckily I decided to raise the issue straight away with Sling, as they only provide 90 days of free support. So I'm waiting on them to give me a solution, or alternatively replace the box.
After reading all the posts on the Slingbox forum and a lack of solution/response from Sling, I returned my Pro-HD to Amazon.
The sound was Ok in standard definition mode, but in high definition the echo existed in the PC app, but was more noticeable on the iPad & iPhone4 and even worse when using headphones.
So I'm back using my Pro until I hear that this issue is fixed and I decide to buy the Pro-HD again.