When running multiple soundcards the best way to manage them is with an external mixer. I used to pass the line out into the line in of another card, but it was a nightmare to setup the line IN/OUT volumes.
I picked up this little 6 channel mixer for the nice sum of £28. It arrived today and from my quick play with it, it's really is great value for money. Its a metal enclosure and is well built. Mixing dials don't feel cheap. It runs off USB power so can be powered in a number of ways. I picked up the 6 channel version but they do a even smaller 4 channel model which is even cheaper. The only this thing with this mixer is it uses TRS jacks so you need some converters to convert to 3.5mm. I had a couple knocking about but I've ordered a 5 pack.
Definitely one to consider if looking to mix multiple sound sources to one output.
I picked up this little 6 channel mixer for the nice sum of £28. It arrived today and from my quick play with it, it's really is great value for money. Its a metal enclosure and is well built. Mixing dials don't feel cheap. It runs off USB power so can be powered in a number of ways. I picked up the 6 channel version but they do a even smaller 4 channel model which is even cheaper. The only this thing with this mixer is it uses TRS jacks so you need some converters to convert to 3.5mm. I had a couple knocking about but I've ordered a 5 pack.
Definitely one to consider if looking to mix multiple sound sources to one output.