Sigh, looks like I missed this one from here: https://www.head-fi.org/threads/order-your-limited-edition-hf3-from-ttvjaudio.913982. Unfortunately I don't think it's possible to get one anymore - it appears that the HF-3 wasn't a great seller like past Grado / Head-Fi collaborations. Also some background material on Grado headphones here: https://www.superbestaudiofriends.o...uxe-pad-appreciation-thread.8952/#post-289920 Grado HF-3 with TTVH Deluxe Pads With broken in L-Cush pads, they work well enough and are tolerable, albeit on the brighter side. (I'm not a fan of the Grado sound with the L-Cush pads). However, I really love these with the TTVJ Deluxe pads. Technicality wise in terms of perceived clarity and retrieval of low level information, the HF-3 are a bit behind the RS-2, more on the SR-225 or SR-325 level. And really, we are talking about very slightly behind (still a big step up from SR-80 or SR-125). The kicker is that from a tonal balance and "refinement" point of review, the HF-3 seems more balanced holding back a wee bit in the upper-mids to mid-bass compared to other Grado models. And this makes all the difference. The HF-3 is a less raw and more grown up compared to the typical Grado. If the RS-2e with the TTVJ Deluxe pads (reviewed here) was maybe dark sounding with splash of Grado upper-mids, then the HF-3 is less dark, more even in the lows, with less of a splash of Grado upper-mids. The wood seems to be slightly different from from the RS-2e, or at least finished differently, which results in a softer resonance. (FYI, if anyone has HF-3's for sale, please contact me).