or Connect
New Posts  All Forums:

Posts by theequalizer

 It's been a while. Sorry about that. It's not so much 'lower treble' as slap bang in the middle of your most sensitive hearing. Try it. +6db at 3Khz (BW 1, Q of 1.4) ) will hurt. It will force you to lower overall volume, unlike other areas of the frequency spectrum. You end up losing bass and treble.   
My latest tuning of the Superlux HD681F (not HD681). The major tunings are preceded by ##   EqualizerApo formatted for a straight copy and paste but check the note.   Because of the -9dB pre-amp and the -9db (coincidentally) reduction in volume at 3000Hz, this equalisation requires singificant amplification to get to normal listening levels for loud listeners (probably most of us). I'm using an O2, the high power amp, with gain pushed in, to get there.   (note:...
 I need to qualify that. The treble control on the clip has nothing to do with the rasping treble of the 3000Hz hump. High hats etc are much higher. So I'm suggesting the combo to temporarily solve your problem. And I forgot to mention that taking out that 3000Hz hump will result in you putting up the volume which will bring the bass up.
 I don't have these but I've just looked at the innerfidelity graph and you might like to try taking out the 3000Hz hump that I mentioned in my two recent posts. To flatten the hump the graph may lead you to think that -12db is needed. However, in real life, not measurements headphones, it should be about -5db. But I'm the resident whacko and a headphone theory denier. Filter  3: ON  PK       Fc   3000 Hz  Gain -5 dB Q 1.4 The 3000Hz hump is often experienced as rasping...
While we're about it, here's my latest etymotics (HF2/3/5 with output impedance below Ohms/8 ie, clip+/zip etc or the O2).   I forgot preamping, but here I include it.   Preamp: -7  dB   Filter  3: ON  LS       Fc   40 Hz  Gain 7  dB Q 2.8 Filter  3: ON  PK       Fc   130 Hz  Gain -3.5 dB Q 2.8 Filter  3: ON  PK       Fc   650 Hz  Gain -4.5 dB Q 2.8 Filter  3: ON  PK       Fc   1000 Hz  Gain -6 dB Q 1.4 Filter  3: ON  PK       Fc   2900 Hz  Gain -5 dB Q...
 Which one are you thinking of? The 1000Hz dip or the 3000Hz dipped bump?  The 3000Hz bump in etymotics and the superlux is based on audio theory and it sounds like crap. And it's not flat. You can clearly hear it. It causes both bass and treble to recede drastically. A lot of headphones have it and it's taken out by HTFR head related transfer function calculations in reviews, but I don't think it should be. It's totally present when you listen to a sine sweep. HRTF theory...
I've been fine-tuning my superlux HD681F for a while. They are supposedly 'flat' and I suppose they are flatter than many. But like etymotics, they're still not flat.     I've yet to crack how to get the bass perfect, but I'm happy with this for the meantime.   I should add that for my tastes as a loud listener, I find vocals tend to be too forward/intense on a lot of naively mixed music. I take out 6db around 1000Hz. Sounds a lot less 'boxy', but of course you can...
I get emailed alerts.   I found the link. It's here.   My personal preference to the parametric EQ business is a Clip zip (or plus) and rockbox firmware. It has a higher power amp than the iphone and according to the O2 designer it's hifi while also having an etymotics friendly output impedance of 0.5 , so no bass or treble issues. Accudio may have a preset that compensates for output impedance issues according to device (they all vary), but their website doesn't say....
 Those were for the HF2 so should be right for the HF5 (apart from canal resonance, of course). I am almost certain that at the time I was using the grey/large triple flange. I didn't have them buried that deep. I found that isolation seemed to  suffer and audio was (perhaps) slightly muffled when as deep as that. That maybe because I have a deviated ear canal (which Tyll Hertson also has; and whose articles alerted me to this possibility) on my right ear. I can tell this...
...I should add, that those etymotics equalisations won't be quite on the money if you are using a high output impedance source or the etymotics are using the 70ohms resistors which, for the same reason,  cause a bass hump and treble issue.   Low output impedance sources include Iphone 3 and 4 (5 is too high for their consumer range, HF2 etc), sansa clip, Fuze. Or you can correct output impedance issues and get a not-far-off-hifi amp the Fii0 E5 or E6.
New Posts  All Forums: