CHANGSTAR: Audiophile Headphone Reviews and Early 90s Style BBS

  • December 31, 2015, 09:09:34 AM
  • Welcome, Guest
Please login or register.

Login with username, password and session length
Advanced search  
Pages: 1 2 [3]

Author Topic: AKG K400 Measurements  (Read 4553 times)

0 Members and 1 Guest are viewing this topic.

OJneg

  • Audio Ayatollah / Wow and Fluster
  • Mate
  • Pirate
  • ****
  • Brownie Points: +120/-3
  • Offline Offline
  • Posts: 1245
Re: AKG K400 Measurements
« Reply #20 on: July 14, 2014, 07:17:32 PM »
Solderdude, your measurements seem way off. I realize that we should take these things relative to each other but looking at Marv's plots versus yours is kind of ridiculous. If your plots were indicative of what is heard, it wouldn't be "slightly edgy" treble. 10dB at 7kHz (with that high Q) is "WTF, throw it out the window" treble. Whatever you have seems to be making those resonances worse. Misleading, wouldn't you say?
Logged

Deep Funk

  • Sure is fond of ellipses...
  • Able Bodied Sailor
  • Pirate
  • ***
  • Brownie Points: +111/-3
  • Offline Offline
  • Posts: 2344
  • Born in 1988, eclectic 90-ties!
    • Radjahs2cents
Re: AKG K400 Measurements
« Reply #21 on: July 14, 2014, 07:22:59 PM »
These measurements are of the same K400 Marvin measured. Maybe the positioning or something else influenced the measurements.

I was there when Solderdude measured the headphone.
Logged
Few things keep me sane: my loved ones, my music and my hobbies. Few is almost an understatement here...

OJneg

  • Audio Ayatollah / Wow and Fluster
  • Mate
  • Pirate
  • ****
  • Brownie Points: +120/-3
  • Offline Offline
  • Posts: 1245
Re: AKG K400 Measurements
« Reply #22 on: July 14, 2014, 07:23:57 PM »
Did they actually sound like that?
Logged

Deep Funk

  • Sure is fond of ellipses...
  • Able Bodied Sailor
  • Pirate
  • ***
  • Brownie Points: +111/-3
  • Offline Offline
  • Posts: 2344
  • Born in 1988, eclectic 90-ties!
    • Radjahs2cents
Re: AKG K400 Measurements
« Reply #23 on: July 14, 2014, 07:26:56 PM »
The K400 sounds very smooth, rolls off at the low end and is detailed in sound without a hint of brightness.

Only when you crank the volume you might notice the peaks. In that scenario you might damage your hearing though. This AKG measured a bit strange but sounded quite pleasant.
Logged
Few things keep me sane: my loved ones, my music and my hobbies. Few is almost an understatement here...

Solderdude

  • Grab the dScope Kowalski!
  • Able Bodied Sailor
  • Pirate
  • ***
  • Brownie Points: +206/-4
  • Offline Offline
  • Posts: 907
  • No can do skipper, the dScope was terminated
    • DIY-Audio-Heaven
Re: AKG K400 Measurements
« Reply #24 on: July 14, 2014, 07:28:11 PM »
Quote from: OJneg on July 14, 2014, 07:17:32 PM
Solderdude, your measurements seem way off. I realize that we should take these things relative to each other but looking at Marv's plots versus yours is kind of ridiculous. If your plots were indicative of what is heard, it wouldn't be "slightly edgy" treble. 10dB at 7kHz (with that high Q) is "WTF, throw it out the window" treble. Whatever you have seems to be making those resonances worse. Misleading, wouldn't you say?

Think of it what you want, it's what my rig says.
For reference it says this about my HD650:




This too is a 'normal' circumaural and open headphone and doesn't show any signs of coupler trouble or incorrect FR nor strange resonances.






« Last Edit: July 14, 2014, 09:26:19 PM by Solderdude »
Logged
Use your ears to enjoy music, not as an analyser.

Solderdude

  • Grab the dScope Kowalski!
  • Able Bodied Sailor
  • Pirate
  • ***
  • Brownie Points: +206/-4
  • Offline Offline
  • Posts: 907
  • No can do skipper, the dScope was terminated
    • DIY-Audio-Heaven
Re: AKG K400 Measurements
« Reply #25 on: July 14, 2014, 07:37:42 PM »
Quote from: OJneg on July 14, 2014, 07:23:57 PM
Did they actually sound like that?

Well... it did have an edge but as stated it wasn't really very audible (which kind off surprised me).
Mind you when we played music it was probably playing around 75dB SPL.
When it was mine I had already found that it didn't want to play very loud and got 'rougher' sounding and didn't like an EQ in the bass either.
It was measured at 95dB SPL (measure everything at that SPL to drown outside noises) and I didn't think of it but maybe should have measured it at a (much) lower level.
Perhaps the measurements may have been more favourable.

It should be noted that I experience the same 'problem'  with my KSC75.
That doesn't play very loud and sound nice at the same time either BUT it measured 'correctly' at 95dB and sounds good at 'normal' listening levels.
So do the K400 and K500 I measured.

« Last Edit: July 14, 2014, 07:58:44 PM by Solderdude »
Logged
Use your ears to enjoy music, not as an analyser.

ultrabike

  • Burritous Supremus (and Mexican Ewok)
  • Master
  • Pirate
  • *****
  • Brownie Points: +4226/-2
  • Offline Offline
  • Posts: 2384
  • I consider myself "normal"
Re: AKG K400 Measurements
« Reply #26 on: July 14, 2014, 08:46:50 PM »
There are many factors that can affect measurements. Coupler material and orientation is one:

http://www.changstar.com/index.php/topic,844.msg20429.html#msg20429

Seal is another one as I found out with Stax, thin membrane orthos, and some closed cans.

In terms of graph visualization, stretching or widening affects things up.

All these (and other) things combined may affect results, and this is why I think listening to the actual cans and honest impressions are very important.

Thanks SD! :)p7
Logged
Pages: 1 2 [3]
« previous next »