Thanks for the correction. So I went ahead and looked up HD600 spec: https://www.sennheiser-hearing.com/en-US/p/hd-600/

• 97 dB/V sensitivity (not the 104 dB/V as stated by previous poster)
• 300 ohm impedance
• It requires 22 mW or 2.6V to reach 105 dB SPL.
• It requires 67 mW or 4.5V to reach 110 dB SPL.
• Etc

Apple dongle is 3.6mW or 1V at 300 ohm. No, Apple dongle is not sufficient, for most people listening to 75-80 dB with 30 dB dynamic range.

To be honest I don't think these two are the same. AutoEq is written in Python, Crinacle's graph tool is written in JavaScript, and they don't seem to share much code, if at all, or even to be developed by the same people. But yes, Crinacle's graph tool should do the job just fine.

Jesus christ 💀

ksc35 . Just use the ksc75 clips and trust me the quality of that monster is insane

Very awesome setup, Scarlet!

How did we let the “moondrop chus are the exact same if not better than UM Mest II” crowd take over this sub.

I heard that Chinese are getting popular, but personally I still prefer German (DACH) ones, better service and easier to import.

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Yeah basically this.

Also it's not very common for people to swap wood cups on LCD-2C.

However it's very common for people to swap wood cups on Fostex/Denon headphones. But those are different size and will not fit LCD-2C unfortunately.

So the best chance is hoping someone sell their LCD-2 Closed as parts.

The reason is, that it has a function rather than just being cosmetic. I have the LCD2 Closed Back and have opened them up I know there is a wire attached to it and a bunch of foam there hence.

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You got mixed up in sensitivity units: 104dB/V (not dB/mW) adds up to 84dB @ 0.1V, not 89.

So basically, 104dB/V means 104dB SPL peak with the 1V maximum output of the Apple dongle. Isn't this loud enough? I personally use 108dB/V IEMs with my Apple dongle and never set the volume above -20dB (otherwise it's just too loud for me) so that's 88dB SPL peak. The HD600 would still have 16dB of headroom at my listening level. So from a theoretical standpoint, it looks like the Apple dongle could drive the HD600 loud enough, at least for some people? Am I missing something?

I don’t see Audeze selling replacement parts for it, nor do I even know what the part is called to search for third party options

I have the LCD-2C but I want the option to make them closed back, could I just buy the cups and swap them whenever I needed?

Any suggestions?

You mean the function inside Crinacle's graph tool?

Pretty dang solid. I’m a big electronic guy and some stuff hasn’t sounded great to my ears (Justice’s Cross specifically) but after some light EQ, oh wow

address the problem at its roots. time for a new son.

(this is a joke. just go buy a cable that looks nice to you and it would work just as well as the original)

Of those I own or have owned (based on their overall performance/ease of use and my own preference):

1. Stax SR-009: the god of details, love the airiness and precision, although can get a bit fatiguing for longer listening
2. LCD-2F: smooth and damn pleasant to listen to every time I put them on, slightly forward in the mids but it never feels grating
3. Koss ESP950: pretty much do nothing wrong, although sometimes feel lacking in extensions in both ends
4. Audio Technica ATH-W5000: what I reach for for acoustic, jazz, jpop, etc; they are not hard to drive but more picky with amp synergy than most
5. AKG-K400: these surprise me every time I take them for a spin against more expensive cans, very natural sound, super nice soundstage. Slapped a pair of K601 pads on them and I can listen for hours with no fatigue
6. Beyer T1 gen 1: these are great out of an OTL tube amp, balanced sound with a slight coloration in the upper mids
7. Ultrasone Signature Pro: fit can be a bit finicky sometimes and affect the soundstage, surprisingly I like them quite a lot for classical and ambient
8. Senn HD650: nice tonality, clamping force is a little high but very comfy otherwise
9. Senn HD800: great once eq’d but I am lukewarm about the tonality
10. Grado RS2: maybe the best grado I’ve tried, feel more balanced than the RS1 to me, very energetic and fun

I think people are missing that the USB-C Apple dongle tested well, the lightning one was just ok.

Facts! EQd LCD X are so damn good

Ah yes, a fellow IU enjoyer.

Very nice setup. My LCD-X are my favorite headphones I’ve ever used. I daily drive them. Not even sure how to describe the music that comes out of them but pure bliss.

Let's see, I've owned quite a few headphones, and I've demoed more, so I'll give this one a shot. Some demos were done months ago, and often for only a few minutes, so this is just from memory.

1. Hifiman Shangri-La Jr. Superlative in comfort, sound, and style. My favorite tuning thus far: airy, bright, yet smooth. Vocals, particularly female vocals, take on this thinner, breathy, "delicate/angelic" sound, which I often like. Bass has some sense of punch and responds well to EQ. Absolutely no regrets buying this one.
2. Hifiman HE-1000v2. Very similar overall to the SGL Jr, I just really like the Hifiman sound. A bit more bass, the treble is a bit rougher, and the soundstage is different. Comfort is great too, though the earcup extends maybe a bit too far down.
3. Meze Elite. Only demoed them for a bit, but the sound was full and rich, with lots of energy in the bass and midrange. It was comfortable to listen to sound-wise. Unfortunately, my ears stick out too much and were squished against the metal driver mesh, which was a bit uncomfortable.
4. LCD-X 2021. Smooth and bassy sound, probably the darkest headphone that I could enjoy listening to. All around good option, and it's more comfortable than its weight would imply.
5. Stax SR-L700mk2. Very unusual tuning, but it works well for some genres. With a bit of a bass boost, it becomes much more tolerable for a wider variety of music. It's sort of a lowercase-mu-shaped sound, and just needs a bit more bass to shine. Also, it's soundstage is quite unusual and asymmetrical, which works well for live stage-based recordings. I haven't heard anything with that sort of soundstage elsewhere.
6. Hifiman Arya Stealth. It's got that usual Hifiman open-back tuning, but it lacks some refinement in the upper mids and treble that the HE-1000v2/SGL Jr have. There's just some harshness there. Excellent headphone otherwise.
7. Focal Utopia (older). The only Focal that I've tried that wasn't immediately uncomfortable. It has a very energetic sound, lots of bass punch and slam, but possibly the weirdest imaging I've heard. Like in one song, there's a little rustle that normally renders diagonally behind my left ear. On the Utopia, it was like inside my left eye socket. Very odd, but a great headphone nonetheless.
8. Audeze CRBN. This is an outlier amongst electrostatics. Small soundstage, big and punchy bass, plenty of note weight similar to an Audeze planar. Somewhat strident in the midrange, particularly with female vocals, and this trait is shared with the MM-500, so I think it's a "new Audeze" feature. Kind of bulky too. Treble seemed a bit grainy at times compared to the other 2 estats on this list. An estat for people who don't like estats.
9. Dan Clark Audio Aeon 2 Noire. Well-tuned portable closed-back planar. Decently comfortable, though for some reason it doesn't work that well for my head shape through a combination of unusual pad shape, higher clamp pressure, and a thin, stiff, and narrow headband strap. Generally a good Harman-esque tuning, though quite bright in the upper treble even for me. Bass is elevated, but occasionally lacking in punch, depending on how the track is mastered.
10. Hifiman HE-R7DX. Sort of a surprising entry, even to myself, showing that good stuff exists at all price brackets. Light and mostly comfortable (big ears strike again!), with minimal clamp force. Good and punchy bass to me despite not sealing well on my head. Emphasized midrange combines with an elevated, though peaky, treble to create an energetic sound. The main problems are that the sound can change quite a bit based on fit, the treble peaks may disagree with someone else (they don't bother me very much), and it's very difficult to EQ. Certain notches in the FR are practically impossible to erase via EQ boosts. This is a love-or-hate headphone, and I got lucky.

Beyers don't have that bass unless you get the real V tuned ones, and they're meh. Check out the DCA Open X or Drop version. Actually if you don't mind EQing, the K702 can take a mean bass boost, and once you fit their 5khz rise they sound surprisingly solid and well rounded. The bass really slaps