The feature set is perfect, just what I was looking for to convert my small gig band from wedges to wired inear monitors. It has four stereo inputs and four headphone preamps. Each of the preamps can feed the signal from any of the four stereo inputs.
This is great as it allows me as an engineer to quickly listen other members mix without repatching anything, just turning the input selector. This is essential in a live situation.
Now, about these few issues...
The left and right inputs are backwards! This was very puzzling at first. I connected everything by the book and the panning was backwards in our phones. At first I thought it was me doing something wrong on the mixer (X32) but after troubleshooting I found out that the inputs on the HP4 are indeed backwards. What's more interesting, it's not the labeling. The first input is labeled as a left/mono input and when nothing is connected to the other input (labeled right) it does pass the signal as mono to both headphones. But that input is really the right input.
Or let me say it this way, I'm not sure if it is the inputs or headphone outputs that are reveresed, but if I connect the inputs backwards I get correct panning in the headphones.
It's no big deal in the end, not a deal breaker for sure, especially for the price. I did put a label on the back of the unit to remind me that the inputs should be connected backwards.
The other issue is that the inputs are not balanced. I have a wifi router mounted in the rack and we get some noise from it in the headphones. If I turn it off or remove it from the rack the noise disappears.
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