Feel free to ask any questions/comments on the QA440 post below.
How do I inquire about obtaining a QA440? I use an APx585B and I absolutely love the idea of a DB25 switcher. This looks to me like it will make the perfect companion for the APx585
Send a mail to the sales alias. There should be a blog post going up this week or next measuring a 5.1 amp with the QA440. I think a first run of boxes will be built in a week or two.
Thanks for your interest!