The subjective

Signature

The BG’s tonal balance skews towards brightness though can be considered as “neutral” for simplicity. It is relatively neutral throughout and is characterized by a mid-treble peak.

The Bad

The standard caveats of “BA timbre” always show up with such systems, and the BG is no exception. Most try to hide the plasticky hollowness of BA drivers with a lower mid emphasis, which helps to smooth out the texture and just make them easier to listen to.

With the BG and its neutral-bright tuning, you get all that rough texturing and highly defined notes, but at the cost of the timbre naturalness. Its rapid quick decay shines a spotlight on low level detail but perhaps also to its detriment. Detail that should have been subtle or stay in the background gets pushed into the foreground unnecessarily at times and instrument positioning sometimes do not follow the mastering’s intended order, instead putting everything on the same plane of priority. That said, this is a common trope that such neutrally tuned BA IEMs exhibit so it’s not like the BG is out of the ordinary in this regard.

What exactly is stopping the BG from being universally loved would potentially be its treble response. It does get sharp, and depending on your insertion depth it can be smack-dab in the middle of the sibilance range.

The Good

In a way, you can also construe what I’ve said about the BG’s weakness as its strengths, depending on your perspective. The BG has highly defined notes in combination with its technical-focused signature, which makes it a very clean sounding IEM.

It’s not an outstanding performer in terms of tonality, but it’s close enough to what I can consider as “serviceable”. Apart from slightly-too-heady vocals and a partial lack of note weight in instruments in general (despite its lower midrange emphasis per my FR analysis), the BG doesn’t sound wrong and is at least within the realm of “artistic license” in its portrayal of a reference & neutral kind of sound.

Conclusion

The BG is a well-tuned, detail-oriented BA IEM with the usual weaknesses of BAs. For the price, it performs adequately.

Consider one if you put treble sparkle and definition high on your own priority list.