Hopefully they donāt make you take a videoā¦ 
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Ohhh man, good luck. Prepare your camera app on your phone because theyāre going to ask for a video ā¦
really Iāve only had that with aliexpress linsoul usually just has me do a RMA
mmhmm well here you go, a video of my no ends:
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Anyways, first impression, just throwing loads of crap at it, barely finishing any songs yet: tremendous. Plays well with everything. Well balanced. Ears donāt get tired or hurt (a big relief - ears are on the small side).
I wonder if I will notice any difference with the much beefier cable later on. I only have single ended gear right now. The modular cable was part of the appeal - be ready to try some balanced stuff later on.
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Heydays have now become my classical iem of choice, I was on them because they didnāt quite hit me for Techno/Aggressive Electronic but damn does Viola Da Gamba and small ensemble classical sound insane. Clarity and sense of space and depth, little nuances with bow drag, I can smell the rosin. Even off a BTR5 wireless with Apple Music, Spinfit CP100 plus. Questyle M15 for iPad wired.
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Noted! 
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'kay some initial thoughts on these. They are fantastic sounding but ā¦ also frustrating. Early days and still tip rolling (plus definitely need more brain burn-in) - plus my first planar so maybe some of what Iām hearing is also down to this, but what do I know. When they work they sound bloody great, and wow do they have great clarity, balance and the planar has handled fast parts of my library like a champ (Slayer, Opeth, Malevolence etc).
Frustrating on the other hand with some artists/tracks Iāve thrown at them on other stuff. I canāt put my finger on it but something is missing and they sound a bit āflatā - not from a tuning perspective but just not as fully fleshed out/full fat as some of my other sets. I suspect this might be a DD vs planar thing for me though. Means Iām tinkering with adding a bass shelf in UAPP when this happens. I also canāt help thinking my source (M3X DAP) maybe also canāt really max these out - but again what do I know?
Other aspects - build quality is top notch, love the look, love the modular cable although the ear hooks arenāt shy. No issues with comfort, although with CP100s they gradually slide out so I loose a bit of seal - hecne still tip rolling. I like the idea of the case but I need a lesson in how to put them back in it properly!
Overall, no regrets and I wanted/needed to get a planar - when they work they are very good. Just frustratingly for me and my (poor) ears inconsistent at times at the moment.
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Xelastecs or even better the new Spinfit W1 tips will help a ton with that 
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Iām not sure, but I think itās from their setting (FR). For thicker guitars and a generally denser sound for metal, youād better get the S12, with them the metal library comes to life. 
Let me swoop in to save your day!
This dongle is a REVELATION. Truuust me. As I mention in the review, I have tried two of the top dogs of the dongle - the Questyle M15 (ESS Sabre dac chip) and the Cabin Ru6 with its R2R architecture.
The M15 has a very edgy, digital, cramped presentation & signature.
The RU6 has a very visceral, thoroughly analogue, and quite wide presentation & signature.
The xDuoo Link2Bal is the most blends detail and musicality to a perfect mix, sounds powerful, organic, polished, large and the widest most expansive stage I ever heard.
Like I also mention in the review, this dongle just straight up fixed my IEMs that I had deemed too lean, too sterile, too boring, too flat, too edgy, too whimpy. It infuses tremendous warmth, intimacy, life and emotion to music. Voices sound simply human.
Itās ridiculous that Iāve gone this long in my IEM journey without the presentation of sound that this dongles offers.
So to conclude, donāt for the love of God write the Heyday off just yet.
5 Likes
I really donāt need a dongle but ā¦ you guys sure are tempting me into a corner here. My wallet may surrender 
You need this dongle in your stable mate! I canāt endorse this one enough. Or rather the sound presentation that it goes for. I havenāt had this much fun listening to musicā¦ maybe ever.
Thanks to this dongle.
I am a fan of the cirrus logic dac sound it seems. All DACs Iāve tried utilizing that dac has offered the same kind of sound, but never before to this large degree. ESS and especially AKM - no thanks! Tried enough to deter me.
Okay, now back to the HeyDay 
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The fact that they actually include a lightning adapterā¦Iām going to put that on my wish list.
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Well, add it onto the 2023 list then! 
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Looks interesting! Do you run this off a laptop or phone? If off a phone what is the battery drain like, and off a laptop does it need any drivers installed (working from home set-up means company laptop with IT restrictions)?
Oh, donāt worry Iām not writing the HeyDay off - itās still early days.
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Need some more spinfits so will include these
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Itās fine off my phone, sound quality is surprisingly close to when itās plugged into my laptop. No drivers needed for computer/phone!
As for battery drainage, itās actually one of the least hungry dongles, and the heat dissipation is stellar, doesnāt even get mildly warm for me.
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You sold me by saying warmth and real voices. Ordering it, Hopefully Heyday sounds even better with it
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Nice dude! Just went to add some thoughts and anecdotes while where at it.
The Kiwi Ears Cadenza ($35 single DD) has been accused of having a slight brittle/metallic timbre. The xDuoo smoothens it out!
But only through the 3,5mm! The balanced 4.4mm output makes this particular IEM sound crisper and more v-shaped, distracting from the smoothed midrange.
I think it sounds 10% more technically competent, extended, punchy and controlled through the 4.4, but not as smooth and inviting. So I prefer the 3.5mm for this IEM.
It seems some IEMs do not necessarily benefit from more power that balanced brings. It should also be said that balanced has inherently greater distortion and DD seems to favor a cleaner signal over power.
I have found that planar IEMs are less sensitive to distortion than other technologies, so they should generally be given as much power as you can give them, which is why 4.4 will work best.
Overall though both ports sound āthe sameā, but some IEMs do not need the increased power and distortion that comes with.
3 Likes