
Originally Posted by
nem0nic
Here's the problem. You never know how much power your controller is going to draw. That APC40 might be fine mapped to other software, but when you attach it to Live and load a session you can double your power consumption. The other side of this is you also don't know how much power your computer is going to allocate to your device. Your computer doesn't allocate full power to your USB device just because you plug it in. And once allocated, there are situations where that value can change.
There are also other influencing issues. For example, when I was at another company we received a batch of USB cables that were of poor enough quality that they took one of our products that was marginal and pushed them over the edge to intermittent failure.
A powered, multi-T hub makes life easier and WAY more reliable. Is it needed 100% of the time? Of course not. But I for one would rather have it and never worry about these issues. All it costs is one mains plug. And if you're a DJ and you don't have a traveller's power strip in your gig bag, that's on you.
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