I currently have an amd board with the fusion technology (same as intel's atom). It has the audio jacks for center/sub/etc, instead of just the 1 normal green speaker/head phone jack.
With that said, the current setup is as follows:
mobo (green audio jack) -> split = 1 side, 2 channel amp (front factory speakers), other side, sub amp (hooked in mono - where only 1/2 rca's can be plugged in for input (or else it barely moves the subs like low volume). Now, with the current sub amp installed, I can't recall any LPF jumper/setting, but I know the amp does have input and output rca's, but it also has extra bass control inputs. This amp drives the subs pretty decently, and sounds good inside the car.
Today, I switched the sub amp with another amp (a little more wattage and an LPF setting/jumper). This new amp only has rca inputs (no outputs). The only think I did was change the amp, kept all wiring the same, including wiring the subs in mono/bridged. This new amp didn't even move the subs at all, not even in the slightest. So, I turned up the only voltage/gain setting on the new amp to max, and it barely moved the subs at all. I tried wiring not in mono (2 channel ?), nothing, same effect.
I then went to the pc audio or mixer settings and saw inside configurations that there were other audio jacks on the mobo. Bingo I thought, I'll run the amp wire from the mobo to the amp rca's. I ran through a configuration wizard and dropped center/rear speakers, keeping a sub and front speakers of a 5.1 surround setup. The test of clicking the sub to check the sound was successful and the subs pounded.
I thought I was good, so I loaded up music (in openmobile with audio device set to the speakers I configured earlier) and no subs going at all. *This is not a post about openmobiles audio*. I loaded up the music in windows media player and no sound through the subs either. Ah great, ran the configuration wizard for the audio stuff about 5 more times and never anything causes the subs to go but the test...
I ended up reverting the amps back, and just using the older/smaller one since it works decently. I've never used the motherboard audio stuff, not through WinXP nor Win7. The most I've done is an external amplifier for a laptop to run a home theater system. Any ideas what I might be able to do, or any hints about why things aren't working they way I think by default of what I'm used to?
Win7, amd with 5.1 jacks and all hardware/software drivers up to date, including windows updates.