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  1. DrivenKeys

    HiFiMan HE4XX

    Well, they arrived, and I can say it's the best 50 bux I've spent in a long time. It looks as if these were used just long enough for the right channel to go out, then returned, then stored in a hot warehouse. The pads are toast, and why I think the cans were stored hot. Almost all of the glue...
  2. DrivenKeys

    The 3D Printer Thread! :D

    Lol, that's a great idea to ask for samples. I've lucked out there by accident on other projects, not sure why I never thought of it. I love the baby pillow idea, I'll look into it. It seems like I just haven't found the correct memory foam, perhaps I need to slim the foam near my zygomatic...
  3. DrivenKeys

    The 3D Printer Thread! :D

    Thank you, this is all excellent advice. I'll start with the pla for baffles and prototyping, and upgrade to petg soon. It's pretty amazing the resonant differences. Considering Beyer went abs with the consumer cups, I hoped abs would sound good. I understand the structural differences between...
  4. DrivenKeys

    HiFiMan HE4XX

    The LG phones are easy to trick with a short extension and a high impedance adapter. I was worried about these on-the-go, but found it's a super-easy trick. The LG only measures resistance when it detects a physical plug-in. Plug the adapter into the extension, then the extension into the...
  5. DrivenKeys

    beyerdynamic DT880 re-cable guide(in progress)

    I agree that you may want to try it yourself, but if you try desoldering a Beyer driver, get lots and lots of practice first. These drivers are famous for their fragility, and it's much easier to permanently ruin the voice coil wire than with most other headphones. I destroyed mine by holding my...
  6. DrivenKeys

    DT770 shell with Peerless Vali Driver

    This is exactly what I was looking for. It's been over 20 years since I studied speaker design, and never studied phones. I've known these programs exist, very happy to know this is available. I'm thinking that a dt990 style semi open might be ideal. That can vents only the motor through a...
  7. DrivenKeys

    DT770 shell with Peerless Vali Driver

    Well, that's currently way above my head, but it looks like that could help. I've never used any of the software pictured, or the principles mentioned, but look forward to learning. Are there any good reading materials you could recommend? This combo will probably take a back seat for now, as...
  8. DrivenKeys

    The Headphone Driver Pics Thread

    If you read over Frank's posts, you'll see he's working with very high and exacting standards, with very specific goals and process. I have a feeling that many of us will have a different experience, based on our designs and ears. I dunno about you guys, but I've never even listened to the...
  9. DrivenKeys

    LG V30

    Ahh, that makes sense. My iems sip power. I just tested the Beyers starting at 26%. It took about 1.5 hrs to go down to 15%. Much longer with in-ear.
  10. DrivenKeys

    LG V30

    Do you know what impedance you phones are? My G8 also has great listening battery life, I have yet to extensively compare my 250 ohm Beyers to my 32 or 64 ohm cans as far as battery is concerned.
  11. DrivenKeys

    DT770 shell with Peerless Vali Driver

    Some details about my current tune: -I just discovered these 30mm thick hybrid donuts really help the treble spike. I have the 105 mm, but the mounting ring looks like the larger sizes will fit. https://m.aliexpress.com/item/32920435885.html?spm=a2g0n.shopcart-amp.item.32920435885& 1. The...
  12. DrivenKeys

    Millett "Starving Student" hybrid amp

    I actually had the same thought when I first looked. I forgot to ask, figured it was just the photo.
  13. DrivenKeys

    LG V30

    Mine is my 1st LG, so I'm not sure how yours will compare. Juan Bagnell compared them in his review, said it's a significant upgrade. My highest impedance phones are 250 ohm Beyer dt990 Pro. It's powerful, dynanamic, clean and loud at 2/3 volume. I'm not conservative when I say loud, there is...
  14. DrivenKeys

    Millett "Starving Student" hybrid amp

    Nice, take your time! Which pot did you get?
  15. DrivenKeys

    Millett "Starving Student" hybrid amp

    Ahhhh, thank you. I'm glad to have them, lotsa potential rf probs around here. I'm excited to finally be back in this hobby. I'm thirsty for knowledge, wanna learn this thing. Looking forward to reading all about tubes, etc.
  16. DrivenKeys

    DT770 shell with Peerless Vali Driver

    Hi Everybody! I was never the biggest fan of my dt770, so when I broke a driver, I decided to play. The Kennerton Vali driver by Peerless has gotten a lot of attention, as it's very nice quality and only about 11 bux each. I love paper speakers, so couldn't resist...
  17. DrivenKeys

    Finding good low budget headphone drivers on aliexpress

    I just purchased the 50mm from the same manufacturer https://www.digikey.com/products/en?keywords=HPD-50N25PR00-32‎ Unlike this picture, the spec sheet shows a paper surface with plastic surround. I lost a driver in my dt770, and decided to play around with these. Any advice?
  18. DrivenKeys

    The PANASONIC RP-HTF600-S headphones. More fun than the HD650?

    Brainwavs aren't the only option. Any Mdr-v6 pad will fit. I returned my Brainwavs sheepskins when I got my Defean sheepskins. They are larger, hold the can a little further from your ears, and more "leathery". They're only 20 bux on Amazon. They have a very thin layer of fabric covering the...
  19. DrivenKeys

    The PANASONIC RP-HTF600-S headphones. More fun than the HD650?

    I sadly learned they just discontinued these a few weeks ago. That's why the price skyrocketed, they're collectibles now. They were still selling for the original 35 dollar price one week, the next week they were gone...These have been my daily drivers for a decade, and the original cable...
  20. DrivenKeys

    Finding good low budget headphone drivers on aliexpress

    These guys in China have some interesting options. I don't like that they use manfacturers' names, then say 'style' as you scroll down. When you forgive that, the drivers look pretty interesting. https://www.earphonediylabs.com/ I ordered the Beyer-style drivers, then cancelled the order. They...
  21. DrivenKeys

    dt990 driver in dt770 cup?

    Hi everyone! I have a pair of dt770 editions, and destroyed the left driver. As I was looking around, I think I'm getting a pair of used dt990's instead of a 770 driver. Both are 250 ohm. Has anybody tried 990 drivers in a 770 cup? I'll start with stock 990, and if I don't like it, might give...
  22. DrivenKeys

    The Ear Pads Thread

    Hi everyone! I just wanted to let you all know the Defean sheepskins are pretty awesome. I'm a/b-ing their mdr-v6 pads vs Brainwavs sheepskins. I tested these on my v6's and Panasonic rp-htf600. I prefer the Defeans. They're 10 bux less than the Brainwavs, but the leather feels similar in...
  23. DrivenKeys

    Sony Went Full Retard: Sony MDR V6 Discontinued

    So, just to confirm, Sony did actually change their mind, and continue to make them? We're not going to need to stockpile for a bleak v6-free future?
  24. DrivenKeys

    Review by 'DrivenKeys' on item 'KZ ZS10 Pro'

    I love these iems, but they are my first of this quality, so I'm more of a noob here. As mentioned by others, they can be a hint bright, but nothing a little eq didn't fix. I think it's not so much the strength of the highs, but rather the abundance of detail. Extra drivers seems to make much...
  25. DrivenKeys

    Starving Student PCB's

    Any A50K stereo audio taper will do. If you're going to mount it directly to the board, you'll ideally want to order one with 15mm pin spacing. The pot listed in the BOM is from Mouser, and has 12mm pin spacing. I learned this after buying all of the parts and having the board arrive last (no...
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