Lowest price I’ve seen for these very well-reviewed earphones, the latest generation of in-ear monitors based on Etymotic’s original 20+ year old IEM design. The ER4SR is the more flat-sounding "studio reference" model, but many listeners find this sort of sound a little lacking in body, which is where the "extended bass" ER4XR model comes in.
ER4XR, $244.77: https://www.amazon.com/Etymotic-R…B01GW786B4
ER4SR, $249.61: https://www.amazon.com/dp/B01GW78…B01GW
Previous front page deal for ER4XR at $269: