Out in the field with an iPhone, a lipo charger, a couple of packs and a bass heavy Spotify Playlist. The last stage before dispatch is testing.

I go through a number of field tests, first of which is whether it switches on (which is useful). Then other tests including bluetooth pairing with more than one device, voltage displayed, USB charging ports work, output to XT60 port etc. It’s all well and good testing that it will charge you phone, and even you lipo charger, but if it sounds crap! then it’s not ticking boxes.

So I launched Stormzy on my iPhone to test the dynamic range of the speaker. I was not dissapointed. I’ve redesigned the fit between speaker and case, so I now have a 19mm wide and 5mm thick seal made from TPU flexible plastic. This ensure a tight, but isolated seal between speaker to case. This will reduce the risk of vibration and rattles in the case. The amp, speakers and bass tube are all carefuy selected for optimum sound control, with deep, rich bass, and clear mid, and sharp top end.

Once I’m happy with the sounds, I move on to testing charging. So out with the phone charging cable, then try attaching a lipo charger and actually emulate a day in the field. So with Stormzy singing his heart out, and the bass pushing the cones to their limits, I plugged in the XT60 extension and then the charger and I was met with a reassuring beep as the charger came to life. Attaching 2 lipos packs and starting to charge while listening to music at the same time presented no concerns at all.