The Bliesma M74A‑6 uses a 74 mm alloy dome with variable thickness, designed to raise the first breakup mode and maintain low moving mass. This allows the driver to reproduce the upper midrange with precision, clarity and excellent transient behaviour.

The single‑layer CCAW ribbon voice coil is wound on a titanium former with reduced height, which helps minimise thermal compression and stabilises speaker’s parameters under dynamic load. The fully saturated neodymium motor incorporates a copper sleeve to reduce nonlinear and modulation distortion.

The aluminium front flange is powder‑coated, while the aluminium rear chamber is filled with natural wool damping to suppress internal reflections and resonances. Gold‑plated terminals ensure reliable long‑term electrical contact, and a protective grille shields the dome from mechanical damage.

Nominal impedance [Zn]: 6 Ω
Sensitivity [2.83 V⁄1m]: 95 dB
Resonance frequency [Fs]: 400 Hz
Recommended frequency range: Fs…6000 Hz
Total Q factor [Qts]: 0.67
Max linear excursion of 2.4 mm

Note: Speakers are supplied matched pairwise (±0.5 dB in 0.5…5 kHz range), if ordered in pairs.