Okay, this thing is better than I'd hoped for...every bit as good as the Waza-Air-B, the only real difference is the Air-B is completely wireless.
I haven't even explored all the features because there's simply so much π΅π° explore.
Nothing else in the headphone amp comes close...my Fender Micro Headphone Amp is already boxed up and ready to ship, sending it to a guitarist friend.
Vox, Nux, Blackstar, Flamma, Joya, etc, if you're looking for a bass headphone amp, forget about them and go with the best...incredible bargain for $125/Β£95.
Sounds amazing even with bargain-priced headphones...Silensys E7.
Hard to find a bass-specific video but this should give you some idea.
https://youtu.be/ruLZC4wbK58?si=IURVaL_c8Oq5q2nT