Two dynamic drivers per side, one dedicated to bass, with 4-way switch tuning — in Harman or Improved Bass versions.
Two stacked dynamic drivers per ear — one covering only 20–200Hz — plus four tuning switches on each shell. Sold in two tunings: Harman, aimed at the research-derived neutral curve, or Improved Bass, with extra low-end weight built into the driver balance. Each comes with or without an in-line mic.
Dedicated bass driver: Bass boosts don't smear the mids.
4 switches per side: Real, audible adjustment on top of your chosen base tuning.
Two tunings, mic or no mic: Harman for neutral, Improved Bass for low-end weight.
Who it's for
Tinkerers who want switch-adjustable sound and a choice of baseline.
The honest trade-offs
Reviewers note the treble can get over-enthusiastic on some switch settings. The two versions use different driver balances — switches fine-tune from your baseline, they don't turn one version into the other.
Specifications
Driver
Dual dynamic drivers per side (dedicated bass driver)
