Fostex has a new affordable headphone family available, the TR series.
All three members share a 40 mm driver. Fostex describes the differences: “The TR-70 has a fully open design; the TR-80 has a fully closed-back; and the TR-90 has a semi-open design.” Each model has an 80 ohm version and 250 ohm.
Cables are detachable and each headphone comes with two — coiled and straight. Each unit also ships with two pads, normal and thick. Plugs are 1/8-inch with a 1/8-inch to 1/4-inch adapter included.