You can move your podcast from Soundcloud to Omny Studio without losing your existing subscribers. You will need to tell iTunes, other podcast directories and podcast apps to pull from your new RSS feeds.
The first thing to do is to import your existing podcast into your Omny Studio account. You may have already done this when you set up the account, but if not, just open up a playlist and click "Import a Podcast".
Omny Studio generates RSS feeds for every playlist. Find the RSS feed URL in the “Details” tab of your playlist.
To move from Soundcloud:
1. Log into your SoundCloud account and click “Settings”
2. Select the “Content” tab
3. Copy and paste your Omny RSS feed into the “Subscriber Redirect” field
4. Click “Save Changes”
Soundcloud will redirect your feed for you, and iTunes will pick up on this change within a few days.
Note: Although iTunes will normally pick up on changes within a few days, you should leave the old feed in place for a few weeks to ensure all subscribers are moved across. Free Soundcloud accounts will stay open indefinitely with the redirect in place.