The razor-sharp imaging of the S-150MKII THX Ultra2 is due in part to innovative front-baffle foam treatments, cabinet design, and in great part to the Phase-Focused™ crossover. The crossover combines three important design elements: Time Domain Analysis, Frequency Domain Analysis, and Point-in-Space Analysis (a three-dimensional analysis of the speaker’s actual response in the room). While other crossover designs consider just frequency response on one axis, MK Sound considers response at various angles in both the vertical and horizontal planes, optimizing the speaker’s three-dimensional response. This critically tuned crossover yields a very smooth and linear response over a wide listening window (very important for home theater) and assists in providing a more focused and coherent sound for the listener.

Three high-quality 1” polymer coated silk soft-dome, ferrofluid cooled dual-magnet tweeters are aligned in a vertical array, each utilizing a unique, specially designed polymeric-damped rear cavity to further enhance its superior sound. The S-150MKII THX Ultra2 dual high-performance 5 1/4” mineral-filled polypropylene cone, magnetically shielded, dual-magnet cast basket woofers produce powerful, richly detailed low frequencies. Based on MK’s Professional Monitors and designed for music and theater systems in small to large size rooms, the S-150MKII delivers unparalleled transparency, accuracy, and dynamics while effortlessly handling voices, percussive effects, and musical instruments with life-like impact, and is timbre-matched to the MP-150 and S- 150T.

Additional Information

Additional Information


Dimensions (HxWxD): 12.5" x 10.5" x 12.5"
Frequency Response: 77 Hz – 20 kHz ±3dB
Impedance: 4 ohms
Power Handling: 180 Watts RMS
Sensitivity: 91dB
Weight: 25

BrandMK Sound
TV TypeNo
VESA MountingNo
TV SizeNo
Cable LengthNo
Free ShippingYes

MP150II THX Ultra2 Certified Left Channel On-Wall Loudspeaker - Each (White)

Preorder $1,59900