tag:blogger.com,1999:blog-7984778625978437479.post1932394382079278872..comments2024-03-28T03:41:06.784-07:00Comments on M.R.O.: Etymotic Research ER-4BRin Choihttp://www.blogger.com/profile/01033604846161090040noreply@blogger.comBlogger9125tag:blogger.com,1999:blog-7984778625978437479.post-17690932776236983152015-06-05T06:34:41.207-07:002015-06-05T06:34:41.207-07:00Which other iems (and headphones) you know come cl...Which other iems (and headphones) you know come close in terms of diffuse-field response neutrality? <br />I ownn many but the ER-4S is propably the closest to what I want in terms of frequency response.<br /><br />A higher-end version of the ER-4S would be all I need.Chrishttps://www.blogger.com/profile/01563039148981980462noreply@blogger.comtag:blogger.com,1999:blog-7984778625978437479.post-86329297085575267562013-09-07T08:12:11.448-07:002013-09-07T08:12:11.448-07:00Maybe in the near future! :)Maybe in the near future! :)Rin Choihttps://www.blogger.com/profile/01033604846161090040noreply@blogger.comtag:blogger.com,1999:blog-7984778625978437479.post-27472738425142683362013-09-07T08:11:53.947-07:002013-09-07T08:11:53.947-07:00Distortion figure of SE535 and ER4 is pretty much ...Distortion figure of SE535 and ER4 is pretty much the same.Rin Choihttps://www.blogger.com/profile/01033604846161090040noreply@blogger.comtag:blogger.com,1999:blog-7984778625978437479.post-70660992363333339232013-09-02T18:47:00.130-07:002013-09-02T18:47:00.130-07:00Hey Rin. I own Shure SE535s, and they sound bad un...Hey Rin. I own Shure SE535s, and they sound bad unless I EQ them to add more treble. I'm thinking of buying Etymotic ER4Ss. Do you think the higher distortion of the Etymotics will sound noticeable?regrepsnefpoHhttps://www.blogger.com/profile/13068718986456842466noreply@blogger.comtag:blogger.com,1999:blog-7984778625978437479.post-11443914387766330872013-02-09T08:59:49.430-08:002013-02-09T08:59:49.430-08:00Hi, would it be possible for you to repost the ER4...Hi, would it be possible for you to repost the ER4B measurements with your new CSD, ETC/group delay plots as well? I think they'd be helpful to people who continue to appreciate its attributes, thanks!Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-7984778625978437479.post-12648692759064583782012-06-24T02:41:29.933-07:002012-06-24T02:41:29.933-07:00Indeed, a balanced armature transducer has higher ...Indeed, a balanced armature transducer has higher distortion figure in general due to the nature of their unstable driving mechanism.<br /><br />Considering the fact that the movement of an armature itself retards magnetic reluctance of the entire circuit with increased tractive force, (must stay away from the magnet in order to maintain linearity) even with the same amount of current applied, higher distortion figure on the BA shall be expected in contrast to the case of a dynamic transducer.<br /><br />Moreover, higher input of current will end up with even more distortion:<br /><br />F ∝ i^2<br />F = Tractive force <br />i = Current in the coil<br /><br />Further research on compliance-controlling techniques will resolve the issue, I hope.Rin Choihttps://www.blogger.com/profile/01033604846161090040noreply@blogger.comtag:blogger.com,1999:blog-7984778625978437479.post-87641353840590320222012-06-23T21:30:05.898-07:002012-06-23T21:30:05.898-07:00I have a pair of ER-4s headphones, I also have mea...I have a pair of ER-4s headphones, I also have measured their frequency response/distortion and found approximately the same values [around 0.5%], any thoughts why the etymotics have higher distortion? I have a feeling it is a 'balanced armature' issue... Thanks!Chestetahttps://www.blogger.com/profile/03658088044050302757noreply@blogger.comtag:blogger.com,1999:blog-7984778625978437479.post-17567407320921236292012-05-05T01:46:14.645-07:002012-05-05T01:46:14.645-07:00(1) Green: left // Red: Right // Gray: Raw
(2) A p...(1) Green: left // Red: Right // Gray: Raw<br />(2) A pair of IEC 60318-4 occluded ear simulators<br />(3) sure.<br /><br />20 86.85<br />25 88.05<br />31 88.79<br />40 89.4<br />50 89.85<br />63 90.21<br />80 90.48<br />100 90.66<br />125 90.78<br />160 90.87<br />200 90.92<br />250 90.96<br />315 90.99<br />400 91.03<br />500 91.1<br />630 91.3<br />800 92.04<br />1000 93.88<br />1250 96.75<br />1600 99.6<br />2000 102.56<br />2500 105.47<br />3150 105.33<br />4000 104.11<br />5000 101.75<br />6300 96.93<br />8000 95.76<br />10000 100.45<br />12500 100.7<br />16000 100.63<br />20000 63.85Rin Choihttps://www.blogger.com/profile/01033604846161090040noreply@blogger.comtag:blogger.com,1999:blog-7984778625978437479.post-25162962330371064382012-05-03T12:00:16.684-07:002012-05-03T12:00:16.684-07:00Thank you for this ER4B information.
As a newbie, ...Thank you for this ER4B information.<br />As a newbie, I have 3 questions:<br />(1) in the Frequency-Response graph there are 2 colored curves(green & orange)that I assume correspond to Etymotic & your own measurments. But what does the GRAY curve correspond to?<br />(2) in what apparatus is the Frequency-Response measurment made? A 2cc coupler ? <br />(3) would it be possible to get a table of the RAW values upon which the curves are generated ?Anonymousnoreply@blogger.com