I received my A8s. I haven't seen a lot of reviews yet of the 8's (mostly 12's, 10's and some 6's), so I thought I would post a few initial impressions here. First of all, these are my firs IEM's. I'm a bass player, a singer, and I've got a degree in music. I would say I have fairly good ears - at least I used to have good ears when I was younger. Despite playing in bands back in the day probably at volumes a little louder than we should have been, I managed to exit without doing much damage thankfully. Back then though, I could recognize a change in pitch of 2 cents - i.e. 2 100ths of a semitone - so with that bragging done, and with the caveat that my hearing and pitch recognition probably isn't as good as back then, on with the impressions.
First of all I freaked out when I first put them in and played some music through them - and not in a good way. I am feeding these directly from a Focusrite Saffire 6 USB. Listening to lossless via Tidal music service. When I fired these highly anticipated monitors up listening to The Blenders (acapella group who's sound engineer is one of the best I know) - I heard nothing but mud. I mean - I was really upset. These things sounded terrible. The bass was there, the mids were ok but not stellar (I expected them to be somewhat receded) but the highs and mid highs were absolute garbage. I was shocked and stunned, and I thought maybe the IEMs had accidentally skipped quality control and one of the drivers was turned off or out of phase or something. I started cycling through a ton of music - all with the same results.
I went to bed very dissapointed, got up the next morning and started trying again. Then it dawned on me that maybe the ports on the IEMs had gotten plugged up with wax on the first insertion (yeah I know - gross, but my ears evidently produce a lot of wax). So I popped them out, and used the little tool that came with them to give them. Sure enough there was a bunch of wax plugging the ports. So I inserted them carefully (after a good ear cleaning too), turned on The Blenders again and BLAM now THAT is how they are supposed to sound! Whew.
Now I can hear what people are talking about. The bass is heavy on these 8 Driver IEMs I will say that. But the bass is also extremely tight with fantastic extension. I hooked up my custom 5 string bass and the low B doesn't even phase them at full volume (actually these are so sensitive/efficient that I can't turn them up all the way - way too much for healthy listening). Turning up the treble on the bass the high notes sound good, but it would be nice to have a little more on the high end in my opinion. Everthing is very responsive and tight, but just not as much presence in the high range. However I can hear harmonics when chording so the frequency response is there. Mids are a bit recessed, but that is just the nature of the frequency curve. The overall tone I would say is extremely warm, a little bass heavy, with recessed mids. Basically what I was expecting.
One surprise is how good spoken or sung vocals sound. They really come to the front of the mix - and that is really perfect for my application where I am singing backup vocals and listening intently to the lead vocalist. In addition, the Bass stands out from the very low range up through low mid range - and truly I was shocked at how much "feel" I got from the bass. I was really worried about moving away from big bass amps on stage because I like the kick of the bass on my chest when I'm playing to get a feel for the rhythm and to experience the music physically. But the drivers in these IEMs convey some serious bass to my head - and I think I'm going to have no problem getting into the music
I'm curious to hear what the manual Adel modules will sound like, and how I can tailor the sound a bit. I might dial back the bass just a touch if that is possible. Overally though, I am so relieved and happy that my initial concerns were easy solved. I've been feeding these acoustic music on repeat at night, and I'm noticing the mids and highs are improving after more break in time - so we will see how it goes in the next month or so.