So let's see measurments of the topping supply too. Maybe its cleaner than both of these.
Send the power brick? I doubt it would affect the measurements of the amplifier to any noticeable degree. It’s completely outside the enclosure. Unless it is doing something really wrong, that is.Would be very interesting if you sent this to Amir for testing to compare to stock PA5
The d90se is in the DAC position, the sound volume is not adjustable, I will use the RCA output to power my active subwoofer (Klipsch 115-SW), and use the XLR outputs for the PA5 which will power my Klipsch R-820F (97db sensitivity)
If your D90se is in DAC position, you can't simultaneously control volume on your R.820F and sub.The d90se is in the DAC position, the sound volume is not adjustable, I will use the RCA output to power my active subwoofer (Klipsch 115-SW), and use the XLR outputs for the PA5 which will power my Klipsch R-820F (97db sensitivity)
Right, but if you aren't using the dac to adjust the volume then when you adjust it on the PA5 it won't also adjust it for the sub. You'll have to adjust the volume of both independently. I think most would find it a bother, but maybe you're ok with that.The sub has active amplification with volume control. The d90se can be output via RCA for the sub and XLR for the PA5 at the same time
This totally sounds like room modes to me, and you should be able to fix this with DSP. With our ears being less sensitive to bass, the room modes are much more tolerable at low volumes. As you turn it up, the sub pushes the room modes to dominate sound more and it gets uncomfortable and sounds more wrong, driving the desire to turn the sub back down.It's a matter of adjustment. The 115-SW sub tends to be a little too much above the rest, I haven't found a solution on the volume so as not to destroy my room when the volume increases with the dac. So I prefer to leave it aside and weaker than the rest because it remains clearly audible.