The Ollo S4x are on my short list for my next gear purchase. I don't think I've seen a single negative review of them (which is quite unusual for headphones).
I owned and used both for a couple years each and the S5X is my main headphone now. The 4 has a slight high end roll off and the 5 is more open back so it has more of the character associated with open back headphones. Either are perfectly adequate but for something like this I use for hours per day when I’m not on the road, it’s worth spending a little more for the most accuracy when I have to work on headphones. Not spending 5x for that other brand mentioned above. I already have IEMs in that price range for live, and for critical listening at home I have studio monitors and acoustic treatment.I’d like to try the Ollo’s myself. Lot of money for phones though. The wife would be annoyed lol. I spend most of my playing time at night on phones. I have the Sennheiser 58x and I like them, but the curve I’m using isn’t perfect. It’s a one size fits all of the same model, not an individual calibration. Is there really $100 bucks of difference between the 4x and 5x? Anyone tried both?
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