Earbuds Round-Up
Sep 7, 2022 at 12:22 AM Post #64,426 of 75,317
I can't wait to test the Super Ones against the M4 with the Super One drivers in it to see how close the performance is.
I think you mentioned you had the Super One buds in a previous message, but it didn't catch my attention. I'm really curious now. If you have some time can you do a quicky Super One vs FF3 comparison? It would be interesting to see how they stack up against each other.
 
Sep 7, 2022 at 12:33 AM Post #64,427 of 75,317
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That’s the EQ I use.

FF7621BF-0166-439E-9491-5EFE817438F8.jpeg

that is the hooks to stabilize them

When I calibrated my Home Theater, I went with flat on axis, constant directivity speakers angled in a stereo triangle with 4 subs equalized and time aligned at the listening position. I took two microphones that could fit in my ears and measured each of them right at the center of the listening position with both speakers firing as you listen in stereo. You can tell they are positioned perfectly by the cancellation at 20kHz. The resultant graph looked like this:
432610AC-A384-4AF7-B219-216FB0C1928C.jpeg
when I sat in that spot with those microphones in my ears, the resultant graph looked like this:
6A8B7D48-9D01-432E-8C69-29C162D408D5.jpeg
now the mics are laterally displaced by half the width of my head and the 20kHz cancellation doesn’t exist, but headphone graphs should look more like that but with an ear canal resonance at 2.5-3kHz (ish) added in as my ear canals are blocked. When you think about the fact that the average width of a human head is about 1,500Hz… beneath that frequency, you’ll hear both speakers. Above that, you’ll hear a lot more of the speaker on your ear’s ipsilateral side. So the left ear will hear more of the left speaker and the right ear, the right speaker. It won’t be a hard and fast cut, but a smooth transition from one condition to the next. No 2 pinna are the same. The graphs ultimately shouldn’t look exactly like that, but they should look something like that. Smoother would be better.

The FF3 is actually mildly dark in general, but it can run the gamut of signatures with the different foams. I’d say it’s very hard to go wrong with it.

Mate, you are an uber audio geek :dt880smile:. Mad respect.
 
Sep 7, 2022 at 1:17 AM Post #64,430 of 75,317
You should be good to go replacing the 6N3 with either the 5670 (standard) or 5670W (MilSpec).

See attached, search for 6N3, shows 5670 and shows matching pinouts.

Perfect! This is exactly what I was looking for. I kept finding recommendations to make the change, but couldn't find if I needed an adapter, but the pin diagram next to the tubes on this document makes it easy peasy to answer that. Thanks bro!
 
Sep 7, 2022 at 1:21 AM Post #64,431 of 75,317
I think you mentioned you had the Super One buds in a previous message, but it didn't catch my attention. I'm really curious now. If you have some time can you do a quicky Super One vs FF3 comparison? It would be interesting to see how they stack up against each other.

I am waiting for the M4s and the Super Ones to arrive as we speak. They are at customs according to tracking. That's why I was saying in my othrt post that I can't wait to compare the M4s with the Super One drivers to the actual Super Ones to see what the differences are, if any.

I will definitely do a Super One versus FF3 test for you when the shipment shows up. Just remind me if I forget and you see me talking about new M4s and the like and I haven't done a Super One to FF3 comparison for you yet.
 
Sep 7, 2022 at 2:16 AM Post #64,432 of 75,317
$39 flagship earbuds TRN EMX just hit the store
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Sep 7, 2022 at 2:46 AM Post #64,433 of 75,317
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Ready to burn myself with a soldering iron :dt880smile:
 
Sep 7, 2022 at 3:50 AM Post #64,434 of 75,317
Hey @WoodyLuvr or any of you other tube guys, you can replace a 6N3 with a 5670 or 5670w without an adapter right?

Sorry for the off topic post, but I picked up a cheap tube hybrid amp and DAC stack at a garage sale and when I look up the amp a bunch of people are recommending swapping a 5670 for the stock 6N3 so I thought I would ask to make sure I don't need an adapter. My tube expert friend isn't available to ask do thanks for any help you guys can give!
You should be good to go replacing the 6N3 with either the 5670 (standard) or 5670W (MilSpec).

See attached, search for 6N3, shows 5670 and shows matching pinouts.
Perfect! This is exactly what I was looking for. I kept finding recommendations to make the change, but couldn't find if I needed an adapter, but the pin diagram next to the tubes on this document makes it easy peasy to answer that. Thanks bro!
Concur with @mt877. You should be fine as 6N3/6N3P and 5670/5670W are interchangeable as the 5670 9-pin miniature twin triode tube is of the same family as the 6N3P, 396A, and 2C51.

Just so you know the 6N3P is simply a Russian made direct equivalent of the 5670 which is simply an upgraded 2C51 and was actually designated as "6H3П" in Russian Cyrillic which looked like "6N3P" to westerners so it stuck! Chinese have in-turn copied it heavily and have also continued to call it "6N3P".

A word of warning
There a number of Chinese hybrid amps in existence that have mislabeled the 6N2 as 6N3... the 6N2 is a Russian clone of the 6AX7, so not even the same family as the 6N3/6N3P/5670/396A/2C51. Double check to make sure they are indeed 6N3 and not 6N2.
 
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Sep 7, 2022 at 6:42 AM Post #64,436 of 75,317
Sep 7, 2022 at 6:59 AM Post #64,437 of 75,317
Sep 7, 2022 at 7:37 AM Post #64,438 of 75,317
Sep 7, 2022 at 8:11 AM Post #64,440 of 75,317
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First DIY ear buds ever. It was scary to solder. At least I tried to yank the soldering joint after completion and nothing moved, so I hope everything is fine. I forgot to check the writing on the shells, so R is L and L is R now :dt880smile: These are the "150 ohm bass speakers", btw.

How do they sound?

First up, FR measurement against the golden boy FF3 (aligned at 500hz)
measurements.jpg


Subjective impressions by wife (Sony XM4 over-ear fangirl, btw):
  • "The sound seems to come in front of me rather than from the ear buds? Strange."
  • "Very good. Very natural"
  • "You should sell these. How much is the material costs? That cheap?? Why do you buy those thousand dollars IEM???"
Being 150 Ohm, this thing needs power. My Hidizs DAP is out of question. Its wimpy 70mW single ended output is no match. Yes, it gets loud after pushing the volume, but it sounds sloppy and muddy. Way better result with KA3 and Creative X1 (a surprisingly good and cheap dongle that I am reviewing, btw).

Now, what do I think?
  • Price / performance ratio of ear buds is broken.
  • The resolution is meh. Adequate, but just average in the grand scheme. 3/5
  • Perhaps because of the strong bass yet weaker resolution, these buds don't sound as impressive as FF3.
  • I might add some foams to control the mid bass somehow. If this is IEM, I would open up front vents or add a leak to the ear tips. Not sure what to do with ear buds.

The 64 ohm drivers are in two versions, one with metal mesh and one with plastic faceplates. You have to ask for the model you want
Mine has plastic faceplates. Does that mean I cannot use them with my metal shells? I couldn't cut or sand the metal to add a cut for voice coil, so I left that titanium driver alone for now.
 

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