[albee]

Being an old Tripath vet I've noticed something that I don't really understand.  If I feed a Tripath its power from a DC power supply it sounds different than if feed by a SLA battery.  I've noticed the bass gets deeper, stronger  but not as defined as with the power supply.  It also seems to "bloom" or thicken its sound at the same time.  It is a different sound and usually I have to adjust treble up and bass down to compensate for the more "euphonic" edge it puts out.

Does anyone have a real simple explanation other than SLA current is cleaner and faster?

[ohenry]

I have no explanation to offer, but I'm curious and have a question.

Have you tried using capacitance (~20kuF) between the battery and the amp?  I found that the battery with capacitance and  switching supply (alone) to be indistinguishable.  I never used the battery alone to see if it made a difference.  I think I used a Nemic Lambda 12V, 2 or 3 amp switching suppy for the comparison.

Edit:  I did hear a tiny bit of noise from the switching supply with high efficiency speakers...I still use batteries.