I've now returned from a several-week odyssey from my PS1000s, as I developed an itch for what I once had with my (three-times sold away) HiFiMAN HE-500s, that could simultaneously rock my bass-ment while tickling my treble fancy!
I'd had them as a complement to my Grados, but sold and bought used ones several times, always to add to my Grado collection (specifically, my HP1000s, and my vintage RS1s).
So I've been out looking again, starting with the HE-500s. But now HiFiMAN has the HE-400i and the HE-560 as well. Comparing them made me remember the great bass from the HE-500, but with my Grado-matured ear, I missed the transparent trebles. The HE-400i and HE-560 both had those trebles, with the HE-560 having the good strong bass I was seeking in the HE-500s (he HE-400i did not).
The HE-560s were nearly TWICE as much as the $500 I was resigned to spend for the HE-500s, more than I wanted to spend. But they sounded SO similar to my Sennheiser HD 800s that I started to ask... how can I use my HD-800s to scratch my itch for simultaneous great bass and wonderful trebles.
So I have been working on how to untether myself from the HDVD 800 amp, built by Sennheiser to showcase the HD 800s (for example, they actually used panels of listeners to set their amp output impedance to an unlikely 43 ohms, as the best fit for the 300 ohms-and-up (with frequency) input impedance of the HD 800s.
I found a 4-foot HD 800 cable, and I have found a portable amp that should do justice to the HD 800s (the CEntrance HiFi M8). Both are on order, but neither are here, but I am within days of scratching that bass itch.
During that interval, I discovered several new recordings that were wonderful on any of my headphones, including the Preservation Hall Jazz Band, Jazz at The Pawnshop, Pat Metheny Group's "We Live," and many others).
So as I return to my beloved Grados, I got out my HP1000s to listen to with these new (to me) recordings.
WOW!!!!
This is the first time I have really appreciated the precision of the Joseph Grado Signature Products HP1000 (HP1 version), driven by the Joseph Grado Signature Products HPA-1 amp.
I think it has been a matter of my ears developing, listening to some Very well made recordings including those mentioned above. but WOW... I had never appreciated my HP1000s as much as now. I just could not take them off. I would stop pecking on my iPad, turn off the TV, take off my glasses, close my eyes, and Just Listen. For a Whole Album. Multiple Times. I should add that I have been using my cherished vintage Sony Discman D-25 player from the 1980s as my source.
So for now, 1) I am back to my Grados as my main listening headphones, 2) I've gotten the HP1000 as my main listeners for now, which had been the PS1000, and 3) I am trying to scratch my bass itch with my Sennheisers made portable through a strong DAC/amp and short cable.