Just finished building my Aleph J and when adjusting the bias and offset, I got some possibly concerning results. Once powered on, I set the bias to 0.35V for both sides, then let it sit for 30 minutes. I then adjusted to 0.40V. I started measuring the DC offset and got 0.011v for the left channel and .021v for the right channel. I put the top cover on let it cook for another 30 minutes. After 30 minutes with the top on, the bias voltage on both sides dropped a little bit under .40V. so I boosted them back up to spec. The DC offset then rose back up to the aforementioned values.
I cannot seem to get a lower DC offset voltage while having the bias set to 0.40v. Is 0.011v and 0.021v okay for both channels? I did some research and it seems it will be, but I wanted to get some opinions from people much more experienced than me. 🙂
Thanks!
I can post pictures if needed
I cannot seem to get a lower DC offset voltage while having the bias set to 0.40v. Is 0.011v and 0.021v okay for both channels? I did some research and it seems it will be, but I wanted to get some opinions from people much more experienced than me. 🙂
Thanks!
I can post pictures if needed
Yup. Totally fine. Offset drifts more than that durning power up and warm-up anyway.
Nothing to worry about.
Nothing to worry about.