I’ve had my black Double Barrel 2.1 for a couple days now and felt like sharing my impressions. It usually takes me at least two weeks to form a solid opinion on any device, so I’m just going to stick with the objective data points for now.
It came packaged in a simple black cardboard box with foam padding. Included are a multilingual instruction manual and a baggie containing 2 thin plastic washer-like atomizer spacers.
The chipset it uses is fairly simple, supporting only wattage mode, and delivering up to 150 watts. According to Eric Buss, the creator, it uses a step down regulator, so the voltage it’s capable of delivering is whatever your batteries can provide.
I started seeing Low Power messages on the display when my batteries reached about 3.5 volts, so the cutoff is probably somewhere around 3.2-3.4 or so. Battery life seemed comparable to or a bit better than that of my Therion 166, and noticeably better than my Battlestar.
Power delivery seems very quick and on par with my Battlestar. Power adjustment is done with a clicky wheel that doubles as the fire button. Each click while turning adjusts by one watt. To lock or unlock the power level, click the fire button four times.
Three clicks flips the display orientation. Five clicks turns the device on or off. That’s it, nice and simple. The button has a satisfying clickiness and tactile feel to it.
Fit and finish are good. It’s a very simple, no-frills design. It doesn’t look or feel cheap in the hand. The only embellishments are an engraved "SQUID INDUSTRIES" down the front tube, and some engraved stars and the number 12 around the 510 connection and on the firing button. I have no idea what the stars and 12 signify at this time, but I’ll happily take them over snaggletoothed skulls and other similarly juvenile embellishments.
It’s a very compact mod. It’s about the same height as a Therion, but other than that, it’s not much larger than a pair of 18650s, and palms very nicely.
Venting is more than ample, there’s a large cutaway slot between both tubes, plus the battery door adds extra ventilation to the bottom.
I don’t like the battery door at all, it’s the weakest part of the entire design. It just slides in, and is held in place partially by friction and partially by a pair of tiny, very weak magnets. There’s no satisfying click, no real retention mechanism, and it’s constantly backing out on me slightly over the course of the day. It really needs some sort of spring loaded retention tab just for peace of mind, and I think Squid should address this with the next revision.
24mm atomizers fit perfectly flush. The 0.5mm overhang from my 25mm Kennedy Trickster is almost unnoticeable unless I look for it at certain angles. 26mm and up, shit starts looking downright comical. 22mm atomizers look OK.
Atomizers with shorter 510 pins seat flush to the deck, but long 510 pins will leave a gap. My Kennedy Trickster 25 leaves a gap of almost a millimeter when screwed down, so I have to use the plastic spacers with it.
It’s too early for me to say whether or not it’s a great mod. I like the way it looks and enjoy using it, but the battery door pisses me off a bit, and I think fixing that should be a priority for the next iteration.
I’ll have more thoughts to share after I’ve spent more time with it.