user664: I have a mac-mini and an old analog 4.1 set of speakers and I want to use all 4 channels instead of only two.
I do not have a receiver and I am looking for the least expensive way of achieving 4 channels audio working.
I should also mention that the mac mini does have an HDMI out, so this could contain some audio out but I'm not sure how many channel it does have and I do know that my TV is not able to convert the signal to analog (and it's speakers are far worse than the 4.1 old system).

user972: I use a Behringer ADA8000 for this - it converts toslink to 8 channels of analogue, and vice versa.  It works well, and is relatively inexpensive.

664: <p>I have a mac-mini and an old <a href="http://images04.olx.pt/ui/11/46/88/1301001465_168863888_4-Colunas-Creative-PCWorks-41-Compra-Venda.jpg" rel="nofollow">analog 4.1 set of speakers</a> and I want to use all 4 channels instead of only two.</p>

<p>I do not have a receiver and I am looking for the least expensive way of achieving 4 channels audio working.</p>

<p>I should also mention that the mac mini does have an HDMI out, so this could contain some audio out but I'm not sure how many channel it does have and I do know that my TV is not able to convert the signal to analog (and it's speakers are far worse than the 4.1 old system).</p>
 972: <p>I use a <a href="http://www.behringer.com/EN/Products/ADA8000.aspx" rel="nofollow">Behringer ADA8000</a> for this - it converts toslink to 8 channels of analogue, and vice versa.  It works well, and is relatively inexpensive.</p>
