Copyright © 1998
Cadman Enterprises Ltd
Welcome to the Graham Slee Audio Products Owners Forum Open to all owners plus those contemplating the purchase of a Graham Slee HiFi System Components audio product and wishing to use this forum's loaner program: join here (Rules on posting can be found here) This website along with trade marks Graham Slee and HiFi System Components are owned by Cadman Enterprises Ltd |
Etymotic ER4 SQ |
Post Reply | Page <12 |
Author | |
miT
Senior Member Joined: 07 Jan 2009 Location: London Status: Offline Points: 890 |
Post Options
Thanks(0)
|
Comparing the specs between mine and the IEMs I demo'd with the best sounding HF, impedance matching may not be the issue:
Etymotic ER4-PT = 27 Ohms, 102dB @ 1 kHz Shure SE846-CL = 9 Ohms, 114dB @ 1 kHz Campfire Audio Andromeda = 12.8 Ohms, 112.8dB @ 1kHz Sennheiser HD-540ii = 300 Ohms, 94dB @ 1kHz Someone with a more technical understanding may be able to clarify this as all were used via my DAP but only the ER4 sound rubbish.
|
|
patientot
Senior Member Joined: 28 Nov 2018 Location: USA Status: Offline Points: 1531 |
Post Options
Thanks(0)
|
This is all a bit above my pay grade, but do you have a link to specs for your DAP? My understanding is that output impedance of the headphone jack is important. AFAIK if it is too high then it might not be the best match for some lower impedance headphones. I looked up measurements of the ER4PT done by Inner Fidelity. It looks like there is a significant dip in the frequency response just before 10Khz. That dip may lead to a sound you don't like. What you could try, is EQing the headphones using the EQ on your DAP or computer software. A quick and dirty way to do it is to look at the chart, and try to bring up the peaks where you see FR dips and the reverse for FR peaks. This is what I do for my headphones. A more complex/advanced way to do it is use software, e.g. Hesuvi + Equalizer APO (freeware) or Sonarworks (not free). Sonarworks does have a free beta Android app right now that you can also try. You select your model of headphones in the settings and it flattens out the FR. |
|
SL-1200 MK7 (modified) + Reflex M + PSU-1 used with AT150-40ML, AT VM95ML, Stanton 680mkII + Ogura, and Shure M35X cartridges.
|
|
miT
Senior Member Joined: 07 Jan 2009 Location: London Status: Offline Points: 890 |
Post Options
Thanks(0)
|
Thanks, mine too. The spec does not list the output impedance although it does show the power output. I will ask the designer and hopefully he will supply that information. In the last few months of using my IEMs via my old source I used to EQ them and they responded well, albeit they did not suffer with this bland frequency response issue at the time, but my new DAP does not include an EQ setting. Considering how amazing it makes my other headphones sound (even my Beyerdynamics sound considerably better than through my desktop system!!), I wouldn't want to compromise that anyway in purist fashion. Your comment about Inner Fidelity has now inspired me to create a new thread as I have questions...
|
|
magical_mouse
New Member Joined: 01 Aug 2008 Location: somerset Status: Offline Points: 17 |
Post Options
Thanks(0)
|
i bought the ex4xr and in the end sold them as they were a little too analytic for my taste and bought the ex2xr (dynamic driver) which i much prefer. BTW which dap did graham suggest? d
|
|
magical_mouse
|
|
miT
Senior Member Joined: 07 Jan 2009 Location: London Status: Offline Points: 890 |
Post Options
Thanks(0)
|
Hi,
I have since demo'd other IEMs (including both newer Etymotic models) and I highly recommend the Final Audio B3. To my ears, nothing sounds better until you spend £1k+. Graham recommended the Dethonray DTR1 after reviewing the specs and design of a shortlist I presented him. His knowledge is second to none as my DAP still sounds fantastic. Bear in mind that it is audio focussed rather than having all the unneeded mod cons... Tim
|
|
Post Reply | Page <12 |
Tweet
|
Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |