Hi guys,
I did some testing and critical listening with my DAW today and definitely heard some bleed, as you’ve both described. I would describe it as “faint, but definitely noticeable when all but the input and headphone volumes are down”, but not “very very bad”, to my ears anyway. I think the reason that I never noticed it before is probably because I and everyone in my band has at least enough of everyone else in their mix to ‘mask’ the bleed completely. Also, like you, I noticed that at such a low listening level, the high-mids and highs were prominent in what I heard, which I think is best explained by our old friends
Fletcher & Munson.
I really think that both of your JamHubs are operating as-designed and are not defective. I recommend that when you’re connecting any sources that some of the performers don’t want to hear
at all, finding the best possible balance between source output level, JamHub input level and JamHub headphone level will go a long way to minimize any bleed. In your applications, our current circuit designs will always exhibit some of this low level bleed. We’re constantly learning about how our customers use their JamHubs. Completely isolating other sounds (band members?) wasn't on our radar as a necessary part of 'silent rehearsing' and so we didn't design for it. We appreciate you bringing your particular uses of the product to our attention, and we will certainly take them into account in future designs.
Please let us know if you have any other questions, comments or observations about this. We've shipped well over 5,000 JamHubs in less than a year and we are very happy with our product quality. The design is working very well for the vast majority of our users. We hope that despite some bleed, you still find your JamHub to be a wonderfully useful tool…
All the best,
