CHANGSTAR: Audiophile Headphone Reviews and Early 90s Style BBS

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Author Topic: Sennheiser HD600  (Read 9910 times)

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stratocaster

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Re: Sennheiser HD600
« Reply #40 on: May 28, 2015, 11:27:57 AM »

The following might help those who find the  stock HD600 a little hot between 3 and 5 kHz. As the overlay shows, this may be addressed by using a ring of dense open-cell foam under the pads. Mine are a little compressed already, so I tried this mod. The foam ring was taken from a left-over third-party Grado L-cush.
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smithj

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Re: Sennheiser HD600
« Reply #41 on: May 28, 2015, 03:59:04 PM »

Is that mod with just the front foam sheet removed, the L-Cush under the earpads, and no other modifications?
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stratocaster

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Re: Sennheiser HD600
« Reply #42 on: May 28, 2015, 04:15:08 PM »

Yes, the pic below shows an overlay of back-damped with (red line) versus without foam-padded pads (green).
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spoony

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Re: Sennheiser HD600
« Reply #43 on: May 28, 2015, 05:58:45 PM »

I really hate that scale, haha, 6 dB is huge for me and it appears kinda understated at that scale.
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stratocaster

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Re: Sennheiser HD600
« Reply #44 on: May 28, 2015, 06:24:17 PM »

under the microscope  ;-)
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spoony

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Re: Sennheiser HD600
« Reply #45 on: May 28, 2015, 06:37:17 PM »

Nice, thank you.
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Tyll Hertsens

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Re: Sennheiser HD600
« Reply #46 on: May 29, 2015, 02:41:53 AM »

Yes, indeed, thank you.
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Tyll (like on the floor only spelled different)

Bill-p

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Re: Sennheiser HD600
« Reply #47 on: May 29, 2015, 04:40:09 AM »

Yep, thanks, stratocaster!

Looks like I should try to find an alternative to the foam piece sitting in front of the driver. It does sound like it's impeaching the driver acoustically.
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graean

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Re: Sennheiser HD600
« Reply #48 on: June 12, 2015, 05:11:21 AM »

Selective frequency and ringing damping:

I've spent time testing this mod on Slants and HD600. Rip out eighths of a piece of toilet paper. It's easiest if you roll up the piece and then rip the cylinder looking thing into eighths. Ball up one of the pieces and put one in each ear pad in the same place. Play your favorite test song and move the pieces to different places. When the music starts to become more alive, and you feel the sound is improved, you can firmly push the pieces into the recesses of the earpad. You may double check with a sine sweep. Note frequency flattening, filling in of dips, damping of peaks, better articulation overall or of certain instruments (by timbre or frequency range), changing timbre of the sine sweep, and perhaps better channel matching. Repeat as many times as you want. In general, more toilet paper will make a warmer sound. This happens most severely when compressing and cramming toilet paper indiscriminately into the earpad space. Whereas a lot of uncompressed toilet paper causes a veiled sound and a flat sheet flattens at first and then causes a broad hill somewhere in the treble, upper mids.

An easy test for whether the damping place is correct is if you end up still listening to the headphones instead of ripping them off in disgust or pain.

I was able to fill in the 10k-15k dip and ~20k spike in the HD600 a bit with this. I presume this will also work with other headphones, including the HE1000 and its current splashy treble.

Note that I have the front foam behind the earpads and toilet paper/black cotton mesh damping in the grills.
« Last Edit: June 12, 2015, 05:32:07 AM by graean »
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audiofrk

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Re: Sennheiser HD600
« Reply #49 on: August 17, 2015, 09:48:38 PM »

What's a good price to pay for a new hd600?
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