Ask your neighbor, mother, loathed sister-in-law, if she’d drop $899.95 on a pair of earbuds and you’re likely to get a look that questions your sanity. It’s already hard enough to spend that amount on a flagship phone. However, that hypothetical didn’t phase Glasgow-based audio company RHA when it unveiled the CL2 Planar earphones, the world’s first wireless planar magnetic in-ears.
What are the RHA CL2 Planar?
These are the world’s first wireless planar magnetic in-ears. Granted, the detachable MMCX ceramic housings allow you to opt for wired, rather than neckband style, listening. If you do plug in for wired listening, you get your pick of 3.5mm and balanced 2.5mm cables, both of which are braided.
A benefit of fewer moving parts (e.g. coils), is a reduced risk of breakage. Considering that the RHA CL2 costs $899 at launch, any durability features are good ones. It’s just gravy that the removable MMCX connectors can help guard against the accidental cord pull.
- Planar magnetic transducers
- aptX and AAC support
- Braided MMCX 2.5mm balanced cable
- Braided MMCX 3.5mm oxygen-free copper cable
- Flight case and carrying pouch
- USB-C charging
- An array of silicone and memory foam ear tips
Why care about wireless planar magnetic earphones?
Simply put, this is a foray into making a high-end driver type palatable for non-wired users. Most planar magnetic headphones are marketed toward audiophiles, a group that often shuns wireless tech. However, the CL2 offers a bridge between both worlds — even if it comes at a high price.
What’s more, this announcement may be overkill, but it’s shining light on otherwise unknown hardware. In turn, increasing awareness could lead to an increase in demand, bringing us full circle to our first point: that planar magnetic technology could be financially viable sooner than we think.
Let’s not forget that it was just two years ago that Audeze released the first in-ear planar magnetic headphones.
What are planar magnetic headphones?
To be Socratic, are you familiar with dynamic drivers? If you’ve ever seen Beats headphones or any headphones, really, then you probably are.
Well, planar magnetic drivers are much like a hybrid of dynamic drivers and lesser-recognized electrostatic drivers. The latter of which are a thin membrane placed between two electrically conductive plates. Hence the name “electrostatic.” Whereas dynamic drivers use electromagnetism to oscillate a coil, thus creating sound waves.
By combining these technologies, planar magnetic drivers — like those found in the RHA CL2 Planar wireless earbuds — interact with the enveloping electromagnetic field. Unlike the dynamic driver that uses a coil to create sound waves, the electromagnetic field is distributed across the same plane. This produced energy forces the diaphragm to move back and forth and creates sound waves.
What does this mean for audio quality?
Now that we know that the CL2 Planar magnetic earphones use a dash of dynamic driver tech and a sprinkle of electrostatic driver tech, let’s discuss how they impact sound quality.
By distributing the energy across a single plane, the diaphragm movement is more efficient. This increased responsiveness generally results in less distortion. Because many planar magnetic headphones have a more even frequency response, many listeners report a more clear sound (due to low distortion and no over or under-emphasis). However, we can’t make any statements on what the CL2 sound like just yet. Check back once we find a pair to test.
Potential sore spots
This is quite curious. If a company is going to produce the world’s first wireless planar magnetic in-ear headphones, wouldn’t it be wise to include aptX HD which enables 48kHz/24bit streaming? We’ve seen it in plenty of headphones, so it seems like a realistic expectation to have. But as Robert Triggs noted in a previous article, “aptx HD increases transmission quality, but won’t benefit consumers who primarily stream music from the most popular services.” That is, opposed to aptX. So, while it is a bit silly that the support of aptX HD was omitted, most of us won’t be able to hear the difference due to streaming compression anyway.
Still, the option to choose between wired or wireless is an interesting proposition to be sure.
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