View HSM8, a 3-way loudspeaker design by @triodemike on LoudspeakerLab.
Preference rating 4.8 · F3 53 Hz · Max SPL 108 dB at 1 kHz · Min impedance 4.2 Ω · Sensitivity 94.1 dB · Estimated cost USD 485
Baffle 457 × 1219 mm