Topic: HE6 Frequency Response and CSD Waterfall Plot (Read 16291 times)

AstralStorm · « **Reply #60 on:** February 06, 2014, 08:36:57 AM »

I attached a large blob of cotton pads behind them with cyanoacrylate, switched the cable and lacquered that, then tried covering this all in silicone (didn't work properly).
Removed the front filter and foam.
Check HF for details and a picture - it is about 1 cm^3 of nonwoven cotton pad glued to form a "shell" shape.
It still does not have the comparable air (-12 dB) and has some residual dips, such as in the center of midrange. None of those is more than -3 dB. Works best with RE-272 long tips or the RE-272 short soft biflanges. Medium insertion.

Of course I forgot to add reasonable strain reliefs and soldered one channel the wrong way, so I'll get to remake it. Removing the mod is not too hard, but some traces of cotton wool will remain.

AstralStorm · « **Reply #61 on:** December 06, 2014, 02:13:54 PM »

Necromancy time. I've finally bothered to properly equalize HE-6, this time with FocusPad. (FocusPad-A coming soon.)
Bass is better controlled still, even than my variant of JergPads, probably thanks to thicker, stiffer construction.
Much stronger bass handling. It sounds way more V-shaped yet cleaner and better in terms of soundstage.

Have a peek at the equalization... it speaks for itself. The highest end is actually kind of disputable, I'm pretty sure there should be a bit less boost.
There is still the deep null around 7.8kHz, which I'd attribute to the antiresonance from the grill. I didn't mod these at all other than replacing the atrocious cable with the better expensive version.

AstralStorm · « **Reply #62 on:** December 06, 2014, 02:54:05 PM »

And here goes FocusPad-A, the timbre is different in this one, especially bass. It's less "kicky" but more rounded. Sound is notably smoother than FocusPad.
It is slightly more comfortable too.

anetode · « **Reply #63 on:** January 17, 2015, 09:33:18 PM »

Got a chance to check out JoelT's modded HE-6 for some extended listening. Non-stock pads, some tape modding, dunno what else (grill?). It's better than stock. Tape hiss and treble noise are still exaggerated, so poor recordings need not apply. Otherwise there's a better sense of space, great detail and less glare than I recall.

He's still working on it, possibly getting it measured down the line. Looks promising.

Author Topic: HE6 Frequency Response and CSD Waterfall Plot (Read 16291 times)

AstralStorm

Re: HE6 Frequency Response and CSD Waterfall Plot

AstralStorm

Re: HE6 Frequency Response and CSD Waterfall Plot

AstralStorm

Re: HE6 Frequency Response and CSD Waterfall Plot

anetode

Re: HE6 Frequency Response and CSD Waterfall Plot

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Author Topic: HE6 Frequency Response and CSD Waterfall Plot (Read 16291 times)