RHA's recent MA Wireless lineup of Bluetooth earphones consists of two collarband-style in-ear pairs. We're fans of the MA650 Wireless, which deliver rich bass and bright, sculpted highs. At $169.95, the MA750 Wireless, reviewed here, cost $70 more than the M650. For the increase in price, you get a similar design, with a sound signature that still offers deep lows, but places more of a focus on the highs. The earphones never sound brittle—there's enough bass presence to keep things anchored—but we actually prefer the more balanced sound signature of the less expensive MA650 Wireless.
Design
Available in a black-and-silver design, the MA750 Wireless earphones have a cool, sporty, look. A flexible rubber-covered collar band sits on your neck, with metallic ends and cabling extending from either end to your ears. The earpieces are connected to stiff wires that loop up over the ear and keep their shape. The in-ear fit is quite secure and should stay in place during light-to-moderate exercise. When not in use, the earpieces snap together magnetically.
As always, RHA includes a generous array of accessories. There are five pairs of silicone eartips, two pairs of flange-style eartips, and two pairs of Comply foam eartips, all in various sizes—it should be no problem finding a secure in-ear fit with this array. You also get a padded mesh drawstring pouch.
The included USB-C charging cable is long and connects to a port on the right end of the collar band. It's surprising with an exposed port that lacks a cover that the earphones are rated IPX4 (safe from splashes), but we'll take RHA's word for it. Don't wash these off in a faucet, however—IPX4 is a relatively low water-resistance rating.
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There's a power button, which also puts the earphones in pairing mode, located on the right end of the collar band. Along the right side, there's also an inline remote control of the three-button variety. The central button handles playback, call management, voice assistance, and (with multiple taps) track navigation. The other two buttons are dedicated volume controls that work in conjunction with your mobile device's master volume levels.
The inline mic offers above-average intelligibility. Using the Voice Memos app on an iPhone 6s, we could understand every word we recorded. There were some fuzzy audio artifacts added to the equation, but that's typical for wireless earphone mics, and the overall volume level and crispness was better than average.
RHA estimates battery life to be 12 hours, but your results will vary with your volume levels.
Performance
On tracks with intense sub-bass content, like The Knife's "Silent Shout," the earphones deliver powerful low frequency presence, and at top volumes, there's no distortion. At more reasonable levels, the bass is still thumping and full, but there's also some notable higher frequency presence to balance the mix out evenly.
Bill Callahan's "Drover," a track with far less deep bass in the mix, gives us a better sense of the overall sound signature. The drums on this track can sound overly thunderous on bass-forward in-ears, but here, they sound almost modest. There's not much boosting to speak of in the sub-bass realm at least—if it's not on the track, it's not invented. However, Callahan's baritone vocals get an extra dose of low-mid richness, and perhaps an even heavier coating of high-mid treble edge. The crispness of the vocals and brightness of the guitar strums stand out the most. There's a balance here, so that things never sound thin nor brittle, but this is a bright sound signature.
On Jay-Z and Kanye West's "No Church in the Wild," the kick drum loop receives ample high-mid presence, keeping its attack sharp and allowing it to cut through the layers of the mix. The vinyl crackle and hiss that's typically relegated to background status also steps forward. The sub-bass synth hits that punctuate the beat are delivered with restraint—we get a sense of the depth, but not nearly as much punch and power as we get from bass-forward in-ears. The boosted and sculpted highs mean that the vocals sound bright and perhaps a little too sibilant.
Orchestral tracks, like the opening scene from John Adams' The Gospel According to the Other Mary, sound the most natural on the MA750 Wireless. The lower register instrumentation gets a nice boosting in the lows and low-mids, pushing it forward slightly, while the higher register brass, strings, and vocals retain their crispness and prominence in the mix. At times, the horns can sound a touch too bright, but it's in the name of clarity.
Conclusions
Bass fiends will want to look elsewhere. RHA's MA750 Wireless earphones are geared toward listeners who want rich lows, but not a mega-bass sound signature. More than anything else, the sound signature highlights the higher frequencies—there's balance here, but it's a bright sound. As mentioned, we're a little more fond of the RHA MA650 Wireless. They sound quite good, and boast a similar design that costs significantly less. In this price range, however, we're fans of the Moshi Vortex Air, JBL Reflect Fit, and V-Moda Forza Metallo Wireless, which aren't quite as bright as the MA750.
The RHA MA750 Wireless earphones feature a bright sound signature balanced with rich lows, but it's perhaps a touch too bright at times.
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About Tim Gideon
Contributing Editor, Audio
