Atrium / Headphone EQ / Fostex
Fostex EQ settings
Parametric EQ corrections for 21 Fostex models, each derived from its measured frequency response. Pick a model for the full filter table, the curve, and how it compares with its siblings.
The Fostex house sound, by the numbers
Across the 21 measured models, the most common tuning is near-neutral (7 of 21, 33 percent). Next most common: bass-light (4), warm (3).
The model that needs the least correction is the TH909, with no band more than 2.9 dB from neutral. The one that needs the most is the T50RP, off by up to 6.3 dB before EQ.