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...
I’ve got the closed back classics - SRH440, ATH-M50, MDR-V6. Subjective listening tests are not great in my opinion. The Ploopy sound great, but they also sound different due to being open back and the drivers being further apart. Do they sound great because they sound different? I can’t tell. Their frequency response does sound accurate overall. I can’t tell if there’s distortion and how much it is. There was some distortion due to overly amplified input filter gain that I helped them fix a few months back. I can technically put them on my MiniDSP EARS and measure them, but the EARS isn’t a great measuring fixture. The idea of sending them to Amir from ASR crossed my mind. 🤭
Good to know there isn’t noticeable distortion then. The frequency responses I have seen look good to me. I definitely hope to see some in depth measurements come out for them! I assume some audiophile creators are getting their hands on them, and I would expect to see reviews in the near future.
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 43dB which is EQed down and a trough at 420dB 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.
Do you have any other headphones you can compare them to? I’m interested in buying them, but there aren’t many reviews available.
I’ve got the closed back classics - SRH440, ATH-M50, MDR-V6. Subjective listening tests are not great in my opinion. The Ploopy sound great, but they also sound different due to being open back and the drivers being further apart. Do they sound great because they sound different? I can’t tell. Their frequency response does sound accurate overall. I can’t tell if there’s distortion and how much it is. There was some distortion due to overly amplified input filter gain that I helped them fix a few months back. I can technically put them on my MiniDSP EARS and measure them, but the EARS isn’t a great measuring fixture. The idea of sending them to Amir from ASR crossed my mind. 🤭
Good to know there isn’t noticeable distortion then. The frequency responses I have seen look good to me. I definitely hope to see some in depth measurements come out for them! I assume some audiophile creators are getting their hands on them, and I would expect to see reviews in the near future.
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 43dB which is EQed down and a trough at 420dB 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.