Sound Quality

The RHA MA650 Wireless is based on what the manufacturer calls the Aerophonic design. From what I've gathered, they're trying to say that the built-in dynamic speaker drivers (RHA calls them "Model 380.1") offer exceptional loudness and clarity. The built-in Bluetooth chip offers SBC and aptX audio codec support.


When pushed as far as it can go, the RHA MA650 Wireless indeed becomes very, very loud. I never felt the need to listen to them at maximum volume, not even when I wore them on busy city streets. These are quite possibly the loudest wireless in-ear headphones I have tested to date. If this is something you're generally concerned about, the MA650 Wireless should definitely be on your radar.

Raw volume isn't the only thing they have to offer, though. They sound very clean and mostly well-balanced. The transition between the low and middle frequencies is smooth, almost stitchless, and there's a seemingly limitless amount of energy present in the bass region, as well as the mid and high-range. I caught myself taping my foot or playing air drums more often than I'd like to admit. I take that as a clear sign that the sound coming from the headphones is fun and lively.


The bass has a pleasant deep rumble and a good amount of punchiness. It's not at all bloated or overengineered, so it does nothing to interfere with the mid-range. Both male and female vocals sound detailed, rich, and authentic. They're finely blended with the music, but never drowned out by it, even in very complex songs and genres. Certain vocals, especially higher-pitched ones, do sound somewhat sibilant, which brings me to my only complaint when it comes to the audio performance of the RHA MA650 Wireless. The transition between the mid and the high-range, where the sound really opens up, is a bit unrefined. If your ears are sensitive to higher frequencies, you might find the sound of the MA650 Wireless a bit too bright.

RHA probably slightly boosted the higher frequencies in order to widen the soundstage and make the MA650 Wireless sound airy and crisp. Interestingly enough, both are aspects I found lacking in the audio performance of the more expensive RHA MA750 Wireless. When comparing the two, I'd give a definite advantage to the cheaper MA650 Wireless. The MA750 Wireless did great with bass-heavy music, but felt overstuffed and overwhelmed in guitar-centric songs and genres. The MA650 Wireless feels more genre-agnostic; I equally enjoyed using it to listen to Foo Fighters, Tool, Boz Scaggs, Cannibal Corpse, and Post Malone.


Of course, to get the best-possible sound quality and comfort, you should spend a bit of time on finding your ideal pair of ear tips. I went through all of them and preferred the ordinary, silicone ones. My second choice would be the Comply foam ear tips, and I wasn't impressed with the dual flange ones.