A set of 3D-printed headphones, alongside a DAC/amp/EQ board powered by a Raspberry Pico. - GitHub - ploopyco/headphones: A set of 3D-printed headphones, alongside a DAC/amp/EQ board powered by a R...
Here’s another bad measurement I did just now on my EARS. Bad because there are known problems with the EARS like the giant hump at 4.5K which is not due to the headphones but a resonance in the “ear canal” of the EARS. The red is SRH440, and the blue is the Ploopy. One of the graphs has psychoacoustic smoothing applied. The other has no smoothing.
There’s a hump at 43 which is EQed down and a trough at 420 which is EQed up. They get a lot better in the psychoacoustic view. Again, ignore the gore at 4.5K, that’s strictly a measurement problem.
My noise floor is bad so the overall noise level is useless but humps in THD are somewhat useful. Here it is:
There’s a small hump around that trough at 420. Nothing ridiculous overall. The gore at 4.5K is again due to the measuring equipment.
So I saw an HE400se on sale and that’s supposed to produce pretty great sound with just a couple of PK filters. So I grabbed a pair. Well it’s pretty good but there’s treble missing that exists in both the SRH440 and Ploopy. It’s the kind of treble that is often attenuated in standard EQ presets with a high shelf like this:
Here’s another bad measurement I did just now on my EARS. Bad because there are known problems with the EARS like the giant hump at 4.5K which is not due to the headphones but a resonance in the “ear canal” of the EARS. The red is SRH440, and the blue is the Ploopy. One of the graphs has psychoacoustic smoothing applied. The other has no smoothing.
There’s a hump at 43 which is EQed down and a trough at 420 which is EQed up. They get a lot better in the psychoacoustic view. Again, ignore the gore at 4.5K, that’s strictly a measurement problem.
My noise floor is bad so the overall noise level is useless but humps in THD are somewhat useful. Here it is:
There’s a small hump around that trough at 420. Nothing ridiculous overall. The gore at 4.5K is again due to the measuring equipment.
Thanks for the measurements! Even with some flaws, these are very helpful for me to get an idea of what to expect!
So I saw an HE400se on sale and that’s supposed to produce pretty great sound with just a couple of PK filters. So I grabbed a pair. Well it’s pretty good but there’s treble missing that exists in both the SRH440 and Ploopy. It’s the kind of treble that is often attenuated in standard EQ presets with a high shelf like this:
Filter 6: ON HSC Fc 10000 Hz Gain -2.6 dB Q 0.70