First, if the Traxis is not ac3 capable, why would you even BE looking for a sonic voom? But on the odd chance that you DO want them for something else ...
Cyberhome CH-HPS 10 6-channel Surround Headphones NEW | eBay
Next, as far as the Openbox S9 HD is concerned, there have been very few complaints, not only will it improve the sound TYPE (including AC3) but quality. Plus there is the advantage of getting HD and S2 signals, and for the cost of these now (under $150 shipped) there isn't any way you can go wrong. Although the gold sponsers on this forum do not carry this particular receiver, you might try hypermegasat, he has several in stock (according to his web site).
I hope this helps more than a "yes, yes, no, yes" answer.
Photto
Cyberhome CH-HPS 10 6-channel Surround Headphones NEW | eBay
Next, as far as the Openbox S9 HD is concerned, there have been very few complaints, not only will it improve the sound TYPE (including AC3) but quality. Plus there is the advantage of getting HD and S2 signals, and for the cost of these now (under $150 shipped) there isn't any way you can go wrong. Although the gold sponsers on this forum do not carry this particular receiver, you might try hypermegasat, he has several in stock (according to his web site).
I hope this helps more than a "yes, yes, no, yes" answer.
Photto