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Friday, January 22, 2016

Earmax ER600 (IEM)

Measurement

[1. Appearance ]
Earmax ER600

• Knowles 60500 Dual BA (Custom-built)
• Looks almost the same as Apple in-ear ME186
• ControlTalk for iOS
• $29 USD








Earmax ER600 Measurement

[2. Frequency Response ]
Check my Measurement Procedures first.

Uncompensated



Diffuse Field Target Compensated



Olive Welti Target Compensated



CSD - Olive Welti Target Compensated



[3. Square Wave ]

• 300Hz

• 30Hz



[4. Minimum Phase ]



[5. Harmonic Distortions ]

• 94dB SPL @500Hz



[6. Impedance ]

DC Ohm


Black: Impedance Magnitude
Green: Electrical Phase



[7. Resistor Added ]
Uncompensated

Black : 0 ohm
Pink : 10 ohm
Blue : 30 ohm
Orange: 90 ohm
Green: 300 ohm
Resistor added


Difference

Blue(flat): 0 ohm
Orange: 10 ohm
Pink : 90 ohm
Green: 300 ohm
Resistor added



[8. ER600 + resistor ]
Diffuse Field Target Compensated

• 300 ohm resistor added


Olive Welti Target Compensated

• Red: 30 ohm resistor added


Olive Welti Target Compensated

• 90 ohm resistor added


Olive Welti Target Compensated

• Black: 0 ohm
• Orange: 10 ohm
• Green: 90 ohm
Resistor added






at

18 comments:

  1. SethJanuary 23, 2016 at 4:52 AM

    One of the least musically involving iem's I've ever used. I respect it way more than I like it. Maybe Apple is dumping their inventory and trying something new. Let's pray.

    ReplyDelete
    Replies
    1. SpeakerphoneJanuary 23, 2016 at 9:41 AM

      Previously I heard the unofficial news that apple is making a BT IEM called AirPod. lol

      Delete
    2. SethJanuary 23, 2016 at 12:34 PM

      Ha! Good point.

      Delete
  2. SethJanuary 23, 2016 at 5:22 AM

    I should also add that I tried a 250ohm resistor

    ReplyDelete
    Replies
    1. SpeakerphoneJanuary 23, 2016 at 9:44 AM

      Due to insufficient volume, I recommend you to use resistor under 90 ohms.

      Delete
  3. SethJanuary 23, 2016 at 12:31 PM

    Actually, I started with an ER4P to S converter which I think is around 75ohms before doing the 250. I ended up giving them to my wife for pink noise sleep phones. She loves them. They made me want to sleep too!

    ReplyDelete
  4. AnonymousJanuary 23, 2016 at 8:47 PM

    Really nice blog - and measurements! I hope one day you can do a measurement on the JVC HA-SZ2000. It exists in two versions: the 16 Ohm asian one (Live Beat), and the 24 Ohm european one (Z-Series). That one seems to have the same drivers, but has added resistors and one capacitor (sort of crossover network). The measurements found online so far are contrradicting and confusing. With your measurment of the DTX350 you got it 100% right, so I hope to see the JVC here too!

    ReplyDelete
    Replies
    1. SpeakerphoneJanuary 23, 2016 at 11:20 PM

      I see. Didn't know that there are two versions. I'll do that if I have a chance.

      Delete
  5. AnonymousJanuary 24, 2016 at 12:22 PM

    Thanks. JVC is not keen to publish the differences, although they are obvious after some research (for example the impedance difference). I have both models, opened them and therefore know exactly. There is no big difference in sound or sensitivity, so the question is why did JVC do this? Unfortunately that is a typical japanese company, so we will never know, it seems. The -E version has a serious resistor of 20 Ohms in front of the bass driver, while the Mid/Hi driver is fed from 12 Ohm and 4.7 ยต in parallel. It looks like they wanted to reduce the middle frequency range a bit this way. But IMHO that didn't work out as expected, because the biggest fail in this phone is that the Mid/Hi driver lies directly on your ears. And sounds aweful because of that. Moving the driver away a few mm, by adding a spacer under the pads, or using the often recommended HM5 pads, the sound already changes significantly - the mids become far less aweful. I modded both versions with spacers and further reduce the mids by 4 dB via EQ (I like V shape sound), and they sound quite nice that way.

    ReplyDelete
  6. AnonymousFebruary 14, 2016 at 12:54 AM

    Can you measure the effect of air bent of ADDIEM? I always wondered about why there is duct on it while it uses BA. Will it be any difference if the bent is blocked?

    ReplyDelete
    Replies
    1. SpeakerphoneFebruary 14, 2016 at 2:27 AM

      Just tried, and it seem that blocking the vent does not affects a significant result. I wonder why they made a vent, too.

      Measurement: http://i.imgur.com/ejSb6Pr.png

      Delete
  7. AnonymousFebruary 17, 2016 at 3:01 PM

    Thanks for the measuring about vent effect. Can you measure the effect of metal damper, too? Is it work as an acoustic damper or just a dust cap?

    ReplyDelete
    Replies
    1. SpeakerphoneFebruary 17, 2016 at 4:34 PM

      http://clarityfidelity.blogspot.com/2014/12/apple-in-ear-me186-measurement.html
      Here, you can find out the effect of stock metal damper of ADDIEM. As you can see, it involves the acoustic functions.

      Delete
  8. MykolaNovember 8, 2016 at 9:23 PM

    I have seen you have measurements on both earmax ER600 and Apple in ear. Is it absolutely same? Measurements are more or less the same. But how about sound presentation, clarity, details?

    ReplyDelete
    Replies
    1. SpeakerphoneNovember 9, 2016 at 5:59 AM

      They're 99% same. No one can't distinguish them with sound, I guess.

      Delete
    2. SpeakerphoneNovember 9, 2016 at 6:01 AM

      But there are QC problems for ER600, so you should be careful not to buy a malfunctioned pair.

      Delete