hf2 win
I went to Ety's demo hours at Apple Regent Street London today, and met with a couple gentlemen from Etymotic and one from ACS. It was great to talk with some of the people behind these great products.
The hf2 (or hf5, same thing from an audio perspective) sounds really good. I was much more impressed than I expected to be. It is a huge step up from the ER-6i, and gets surprisingly close to ER-6 accuracy while being substantially more sensitive and easier to drive from an unamped portable source. What it comes down to is that an hf2/hf5 unamped from a 2G iPod Touch sounds better than an ER-6 from that same (nice-sounding but fairly weak) source, and lots better than an ER-6i. It's a real win.
What about hf2/hf5 compared to ER-4P? Well I personally don't quite get along with the ER-4P sound (I'm an ER-4S guy through and through and the 4P is just wrong enough to bug me), so for me the hf2/hf5 beats the ER-4P. But mine is not a normal reaction to the ER-4P. The Ety guys, and I think most people, consider the hf2/hf5 to be not quite at the ER-4P's sonic level, but they are quite pleased with how close it comes, at a lower price point.
The hf2/hf5 is therefore my choice for best unamped Ety (regardless of price point) but won't be everybody's. It is, however, pretty clearly the best unamped Ety in its price range.
Amped, the hf2/hf5 improves nicely. Amped it is basically at the same subjective quality level as the ER-6 (that is, quite a bit closer to the ER-4S than you'd expect at this price), with the preference between the two coming down to signature - a little warmer for the hf, a little leaner for the ER-6.
To summarize so far:
- Unamped win.
- Amped win.
But wait, there's more. With the hf2/hf5, Etymotic has brought the ER-4 nozzle design down into its lower price range. The smaller-diameter nozzle allows a more comfortable fit than the slightly larger ER-6i and even larger ER-6 nozzles (they tested this, and their test group overwhelmingly preferred the smaller nozzle).
- Comfort win.
A happy side effect of this is that if you get the hf2 customs, your hf2 customs will also fit your ER-4 if you upgrade later. I tested this to my satisfaction by going the other way, putting my (Westone) ER-4 custom tips onto an hf2 and an hf5. A perfect fit.
- Custom eartip upward-compatibility win.
Right now the hf5 comes in black, red and blue, and the hf2 comes in black and red. But a blue hf2 is coming: it ships this week or next week in the USA, and will be shipped to the UK in about two weeks. The blue hf2, however, is not expected to include the ACS voucher.
I also spent a while talking to ACS Managing Director Andy Shiach, a great guy who is really into this stuff. While the Ety/ACS package is currently only being rolled out in the UK, ACS is establishing a footprint in the USA and I think you can expect an Ety/ACS package in the USA in time (in how much time, I don't know). Andy is a dedicated audiophile, and spent a lot of time getting the ACS custom eartips for the Etys just right. We looked at his customs compared to my Westone ones. The Westones are, and always have been, a little bit clunky: the Etys don't nest into them as far as they could, so they have a very long bore and the Etys themselves stick further out of your ears than they need to. The ACS tips are built to let the Etys go much deeper into your ear, and have a shorter bore as a result. I haven't heard them, but I expect this to be a sonic win since the shorter sound channel is closer to what the Etys were designed for. Andy also showed me that the ACS sound bore is smaller, really the same size as the Ety nozzle hole and most eartip holes, while the Westone bore is larger. Again, this puts the ACS product closer to what the Etys were designed for than the Westone product, and I'm hopeful it'll be a sonic improvement over the Westone customs. (I will post again after I have the ACS customs and can do a fair comparison)
I'm waiting for the blue hf2 to arrive in the UK, then I'm pushing the button on those. I like these things a lot. And since the blue hf2 isn't part of the ACS bundle, I'll probably make arrangement for my earmolds now, without waiting for the blue hf2. Both the hf2/hf5 and the ACS customs look like terrific products to me.