Drop + Dan Clark Audio Aeon Open X Headphones
Drop + Dan Clark Audio Aeon Open X Headphones
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Product Description
We’ve partnered with Dan Clark Audio (formerly MrSpeakers) to improve a remarkable and well-regarded pair of planar open-back headphones. Introducing the Aeon Open X: our take on the Aeon Flow Open.
Optimized Open-Back Performance

In the world of open-back headphones, few models have a reputation to match the Aeon Flow Open from Dan Clark Audio (formerly MrSpeakers). With a naturally appealing sound that’s both warm and punchy, plus excellent power response and ultra-comfortable fit, the Aeon Flow Open is close to perfect—close. To get it even closer, we worked with Dan Clark Audio to create the Aeon Open X. Featuring partially fenestrated earpads and reduced driver dampening, these Drop-exclusive headphones deliver a widened soundstage with the same punch and detail as the original. 

At checkout, you can add the Drop + THX AAA™ 789 Linear Amplifier (+ $279),  and save $20 versus buying it separately.

Taking a Fan Favorite Further

How do you make great headphones better? You listen. When creating the Aeon Open X, we listened closely to its predecessor and input from our community of audiophiles. Experimenting with the dampening paper covering the drivers, we opted to use fewer plys, creating a more even tone. To add a bit more air and extension, we used the same partially fenestrated earpads featured on the Aeon Flow 2, minimizing sound reflection back into the ear. The result? Wider and clearer audio.

The Dan Clark Audio Difference

Dan Clark is a renowned audio engineer who has been working in the high-end audio market for more than 20 years. In founding Dan Clark Audio, his mission was simple: to create high-quality headphones that allow listeners to experience incredible audio and nothing less. To that end, headphones should also deliver exceptional comfort, because—as Dan says—uncomfortable headphones “get in the way of musical enjoyment the same way a terrible seat at a concert venue detracts from a live performance.” With a history as a community modder, Dan strives for continual improvement and makes upgrades available whenever possible.

Optional Drop + THX AAA™ 789 Linear Amplifier

Announced at CES 2018, the Drop + THX Achromatic Audio Amplifier (THX AAA™) 789 is a linear bipolar amplifier with feed-forward error correction. It’s designed for objectivists who appreciate an incredibly clean, transparent amp—the sought-after “wire with gain” whose amplification is wholly uncolored by a sound of its own. Made in collaboration with THX Ltd., it features the company’s groundbreaking THX AAA and feed-forward topology, which reduce distortion by 20 to 40 dB for realistic, fatigue-free listening. In fact, this bridged-output amp’s performance figures speak for themselves: It’s powerful (2 x 6W at 32 ohms) and quiet (136 dB SNR) with a record-low THD of -140 dB at 300 ohms, 100 mW. That’s four times the power of the Objective 2 amp, for example, with far less distortion.

  • Drop + Dan Clark Audio
  • Open-back headphones
  • Individually serialized
  • Drivers: V-Planar planar magnetic, matched +/- 1.5 dB 30 Hz–5 kHz
  • Efficiency: 94dB/mW
  • Impedance: 13 ohms
  • Headband material: NiTinol memory metal
  • Ear cup material: Plastic frame, genuine carbon fiber inserts
  • Earpad material: Japanese protein leather (removable)
  • Input connector: Hirose 4-pin
  • Cable: DUMMER 4-pin (3.5 mm) to ¼ in (6.35 mm) , 6'5" (2 m) long
  • Weight (without cable): 11.5 oz (326 g)
  • Made in San Diego, CA
  • Carrying case
  • DUMMER cable with 1/4” termination
  • Tuning foam inserts
Z Reviews on DROP + Dan Clark Aeon

We get it. Sometimes what you ordered just doesn’t work out. If that’s the case for you, don’t fret! All customers (both US and international) may return or exchange this item in new, unused condition within 30 days of delivery.


All orders will be shipped by Drop.

Estimated ship date is June 2, 2020 PT.

Your payment method will be charged at checkout. Cancellations are accepted up to 2 hours after checkout, after which the request will be submitted to vendors to deliver the best delivery time to members, making all sales final. Be sure to check the discussion page for updates.

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Recent Activity
Happy to respond. I like ZeosPantera and was impressed by his enthusiastic review of the Aeons. I didn’t have the Quads at that time, so was comparing to the HD800S, Sivga P-II, AKG 361 and AKG K7XX. The HD800S are truly wonderful and for many tunes are a total blast. But because the soundstage is so wide, the intimacy of other tracks is lost, they are so open backed that any local noise gets through and to my old ears the accuracy means that they lack some warmth. I run the HD800S from a tube amp which does add back a little warmth. The Aeon reviews suggested that they had a moderate soundstage, more warmth and better sound isolation. I tried them as a potential adjunct to the HD800S not as a replacement. Shortly after I ordered the Aeons, APOS (a great company to deal with by the way) emailed me about the Quads. I’m a British ex pat who has been a fan of Quad since I was in my teens and who still has his Quad 303/33 amp/preamp/tuner rig, so I was keen to try them. As the saying goes “this changed everything”. Reviews of the Quads include ones that say “these are the best headphones I have ever heard” a sentiment that in a very limited way I would agree with. I would rephrase it to be “the best sounding to my ears and preferences for the widest range of the music that I like to listen to”. There are NO best headphones, they all play different tracks differently. The Quads have super bass and sub base which makes low strings, cello and bass have their rightful place in the orchestra, but for tracks that have heavy bass emphasis they are awful. Their transient response is terrific, and the sharp edge of a hard struck piano note and the snapping of fingers have definition that I don’t hear on my other headphones. On some tracks this makes it too edgy and uncomfortable. However, overall they do meet, for me at least, the definition of “best for the widest variety of tracks”. So many tracks have that wow factor when listening on the Quads. To be clear, my tastes are classical, vocals, jazz and some blues and 60s/70s pop. Not heavy metal or most avant-garde music. If I hadn’t had the Quads to compare, I would probably still have returned the Aeons as they were a little uncomfortable and just didn’t provide that something extra that would justify adding them to my collection. I am trying to get to the point where I spend more time listening to the music and less listening to the headphones, and I believe that the Quads will allow me to do that. Hope that goes some way towards answering your question. Best wishes and stay safe.