Verum 2 Review and Measurements

Discussion in 'Headphones' started by purr1n, Jan 18, 2024.

  1. rhythmdevils

    rhythmdevils MOT: rhythmdevils audio

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    I think an all black version would be a good idea. Just a suggestion because the basic design looks good to me but I think a lot of people would like less bling/attention/color on their head. I imagine all black would look really nice. Just a suggestion though and IMO, etc.

    congrats on the new model! I hope it's a success. And I also hope Russia doesn't mess up your business or worse. Sending prayers to you and your family. [​IMG]
     
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  2. Suppa92

    Suppa92 New

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    Amazing work Garuspik

    I've been using my Verum 1 mk2s for years now and I have nothing but good things to say about it.
    It's such amazing headphone.

    But I've two minor suggestions for the Verum 2's

    1. Make it available in Carbon version as well [just like in Verum 1, Carbon black housing with silver grills design]

    2. use bit more robust, premium 3.5mm sockets [like amphenol, neutrik] on headphone cups.

    because with my Verum 1's I noticed after several cable connects and disconnect cycles [around 50, 70] headphone's right side's 3.5mm socket cuts the audio when I move a little sometimes for a second then come back up. This not a major issue or flaw. This only happens sometimes.

    I can't wait to hear the technical developments of the Verum 2.;)
     
  3. Lyander

    Lyander Official SBAF Equitable Empathizer

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    This does not constitute imperative advice because of associated risks, but I have had luck using a bent fine steel needle to pull the contacts on the 3.5mm TS jack on my old Klipsch HP-3s "inward" a bit more for greater security, since I was experiencing similar.

    IF you choose to try this, be conservative in how much force you apply. Be careful not to overextend because that'd be strain on the metal.
     
  4. Garuspik

    Garuspik Tovarisch Ukrainian Terminator MOT - Verum

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    Glad to hear!

    I want some distance between Verum 2 and Verum 1. Same as their distance in class should be reflected in look. So I don't have plans to use same colors as V1

    For already several years I'm using German made 3.5mm sockets - Lumberg KLB 4
    изображение_2024-01-23_161756108.png

    And problems are almost gone as I see from feedbacks. If I can find anything better in this size - i'll gladly use it.


    Sure, no major secrets there.
     
  5. M3NTAL

    M3NTAL Friend

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    When should we expect to see a crowdfunding campaign begin? Metallic red sounds nice - hope to see it before pulling the trigger.
     
  6. Walderstorn

    Walderstorn Friend

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    Have to agree. Not everyone likes bling-bling, specially for us "older crowd". Black and instead of bright red a maroon/mahogany or something of sorts. Kinda curious to see how many will pick up that bright yellow though.
     
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  7. HHS

    HHS Almost "Made"

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    I'm picking up the yellow for sure, nothing wrong with a little flamboyance
     
  8. Poimandres

    Poimandres Acquaintance

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    Definitely agree with this. Quite a few of us are a little long in the tooth, we prefer traditional, bland and boring. Love my Verum 1 and would definitely jump on the crowd funding with a more traditional color option available.
     
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  9. purr1n

    purr1n Desire for betterer is endless.

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    Measurements for the vented pads. BTW, the vented pads do slam! (and I think I changed by mind, I prefer these now).

    The FR response doesn't really show the slam, maybe there's a bit more toward 40Hz before the rolloff? But we all know FR doesn't tell us everything. The vented pads are more laid-back with a deeper dip in the upper mids / lower treble than the non-vented hybrid pads.


    IMG_1634.jpg

    Verum 2 - Vented Pads
    Frequency Response
    Comp'd to DF
    upload_2024-1-24_15-30-52.png

    Verum 2 - Vented Pads
    Frequency Response
    Comp'd DF to 1db/Octave Downward Slope
    upload_2024-1-24_15-31-2.png
     
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  10. Lyander

    Lyander Official SBAF Equitable Empathizer

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    Spitballing ideas, but it does make sense that reduced acoustic impedance in front of the diaphragm allows for greater excursion, basically less damping overall allowing for more emphatic kicks even if it theoretically messes with ultimate low end extension. Nice! Not really a lot of music that uses stuff below 60Hz, never mind 40Hz, so a quicker rolloff (-10dB vs -5dB at 20Hz between the pads) seems like an easy tradeoff for most folk.

    I know this is beyond the scope of what's feasible just now, but I'd love to see how a large planar diaphragm acts between those two situations. Also curious about the reduced treble-- reduced reflections? Less strain on the diaphragm on excursion? Weird standing waves? Fun to wonder at.
     
  11. Taverius

    Taverius Smells like sausages

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    Not just that.

    The combined system of a diaphragm and the (compressible) air inside the cup are also a spring with its own natural frequency and standing modes - the combined result of them are the ortho walls we see in CSDs where the whole system easily self-excites into a long-standing resonance, and all the associated tradeoffs & complexities with diaphragm tension/mass, ultra thin HFM diaphragm tearing at standing wave nodes etc.

    When you change venting you're not only changing damping but also the spring rate of the system at those frequencies, which also moves the standing wave nodes on the diaphragm around physically on the surface.

    Modeling the complete behaviour of planar headphones is the sort of crap that makes people want to brute force the simulation on supercomputer clusters.

    Anyway, interested in these.

    I wonder how they'd do on the Af, my other planar amp (Makoyi) is at the workshop and open planars do poorly in an iron-oxide-particle rich atmosphere, funnily enough ...
     
  12. Garuspik

    Garuspik Tovarisch Ukrainian Terminator MOT - Verum

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    Yep! I was waiting for this ;)

    Vented pads: 40 hz @ 0 db in comparison with your target
    Soild pads: 40 hz @ -5 db in comparison with your target

    Imo significant boost without cranking up volume of amplifier.

    That was also a goal - laid back presentation, without sacrificing of clarity + slam + revealing highs without "nail" effect.
    Usually I don't like " in your head sound" and somewhat imitating speakers always one of the primary goals./
     
    Last edited: Jan 25, 2024
  13. Suppa92

    Suppa92 New

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    @Garuspik Is it possible to share some verum2 technical details with us? like is it using ring magnets, impedance etc?
     
  14. TomNC

    TomNC Friend

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    @Garuspik Please make an announcement here when you are launching the crowdfunding for Verum 2. I am one of the early customers in crowdfunding for V 1 and going to do it again for Verum 2.
     
  15. Ti_Leo

    Ti_Leo Almost "Made"

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    Those vented pads looks great, wonder if they would be sold separately. I sense they would go well with Hifiman HE6SE...
     
  16. purr1n

    purr1n Desire for betterer is endless.

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    They snap on magnetically. Forgot to mention. Makes changing pads a breeze. Wish Audeze and HFM would do this.

    Verum 2 with Vented Pads
    Impedance (on ear or off ear is the same)
    upload_2024-1-27_10-44-43.png

    Yes, I am really loving the Verum 2 with the vented pads. Presentation is less dry as I initially wrote with the hybrid closed pads. More boost in 40Hz, but even with music with not much low bass content, the transient response, the mid/high bass slam and punch are more evident while retaining the tautness that the Verum 2 has over the Verum 1. As your asking price. the Verum 2 is a steal. Hopefully you can make it. Even if a bit more, it's a steal (inflation has made things quite expensive).

    In the meantime, this is hilarious. It would be funny to have this in the background during my videocalls.
    Putin HP stand.jpg
     
  17. purr1n

    purr1n Desire for betterer is endless.

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    Verum 2 Distortion. The following are with the vented pads. From these, I didn't think there was a difference in distortion with the vented pads which had better bass extension. The squiggles, especially in the lows are because of environmental noise. In the 2D distortion graph above at about 100db, we saw a bit of second harmonic rise in the mids. Just low the volume down and it's basically gone (greenish to blue from 300 to 1800Hz from 100dbSPL to 96dbSPL).

    Only second and third order are shown. There is nothing interesting with fourth order (says low throughout) so nothing to show. In fact, third order isn't that interesting either. Distortion is at the limits of the system and environment.

    Verum 2
    Second Order
    Distortion Surface (Distortion is in absolute SPL)
    upload_2024-1-27_15-5-10.png

    Verum 2
    Third Order
    Distortion Surface (Distortion is in absolute SPL)
    upload_2024-1-27_15-12-52.png
     
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  18. Garuspik

    Garuspik Tovarisch Ukrainian Terminator MOT - Verum

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    Here is a video of how to make them:



    I suggest tube that has about 7mm inner diameter.

    p.s. Additional benefit is comfort, air isn't trapped inside and your ears don't sweat.
     
  19. purr1n

    purr1n Desire for betterer is endless.

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    Verum 2 - Vented Pads
    Attack and Decay Envelope for Bursts
    upload_2024-2-1_10-51-59.png

    It's got a bit of leading edge for 4800Hz typical for orthos, but not as extreme as the LCD-X (below)

    B1696 LCD-X 2022.wav_burst.jpg
     
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    Last edited: Feb 1, 2024
  20. Lyander

    Lyander Official SBAF Equitable Empathizer

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    Oh those are impressive. Which pads are these measurements of, I'm guessing the vented ones? Would be cool to see measurements of whichever pad set wasn't used for these.

    The bass specifically seems like it's got excellent impact through the lows, though from memory this implies that there could be a bit of softness to the upper mids relative to something like the SR-1a or a damped HD650? Might have something to do with how you mention there's still musicality despite it being more technicalities-focused than the Verum 1, but not exactly extremely dry and fatiguing.

    The fact that the Verum 2 comes that close to the LCD-X is pretty cool.

    [​IMG]

    [​IMG]
     
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