I HIGHLY recommend that you spend the $ to get custom ear tips made for these. Unless your ear canal is perfectly round like stock tips, or really close. The tips will work on almost any ETY earphones, I used to swap mine from the pricey 4 models to my cheap models for travel and then back again. I now have a set of custom tips for each of my 3 Ety earphones, cheap, mid-price, and E4-S.
Huge bass improvement. Better presence. Better seal also helps with not needing an amp. My ear canals are tall rectangles, so I always had to choose between good but painful sealing, or comfortable poor sealing.
Cost isn’t that much compared to the huge leap in sound quality. Instructions Can be found on their web site... for years, they subsidized the cost if you owned certain models (how I ended up with three sets of tips.) No more, but absolutely worth the cost.
EdinNJok I checked: no detachable cable. Sadly that’s a no from me dawg.
How do these compare to any of the the ERxSE series? I have a pair of (failing) ER3SE and the PTO, thinking if I should spring for the 4SE instead.
blackswanSadly, I've had terrible experience with non-detachable Etymotic cables in the past. These are a different class I know but I got through 4 pairs of HF-5s in 2 years which all had the same issue. The cable simply perished. They replaced the first two sets under warranty and the I paid to replace the third set as an out of warranty replacement. I asked at the time about upgrading to ER4, mostly because of the detachable cables but, at the time, they weren't doing the "Trade-up" program so wouldn't let me. When the same thing happened with the fourth set I vowed never to buy another pair of Etymotics despite how good they sound for their price point.