Compact Tripole surround for an enveloping field close to the wall
MK Sound M40T is an on-wall Tripole surround speaker with a 4-inch front woofer, two 3-inch side drivers and a 1-inch tweeter.
MK Sound M40T belongs to the M Series and is designed for side or rear surround channels in compact home cinema systems. The slim sealed cabinet includes rear mounting hardware and damping pads for direct wall installation. The product is supplied as a pair. The M Series draws on MK Sound's long professional-monitor heritage, bringing precision and dynamics to compact cabinets for domestic use.
Key features
- Proprietary Tripole technology with front and lateral radiation.
- 4-inch coated glass-fibre front woofer.
- Two 3-inch side drivers.
- 1-inch coated-silk dome tweeter.
- 100 Hz-20 kHz response and 85 dB sensitivity.
- 2.0 kHz Phase-Focused Crossover.
- Recommended amplifier power of 25-125 W.
- Supplied as a pair.
Acoustic design
The front uses a coated-silk dome tweeter and a 4-inch glass-fibre woofer, while two 3-inch side drivers complete the configuration. Rated response is 100 Hz-20 kHz, with 85 dB sensitivity and 4-ohm nominal impedance. Lateral output does not replace the direct signal: it complements it to widen the listening window and make surround energy more even across different seats.
Tripole technology
The Tripole configuration combines direct front radiation with lateral output to create a surround field that is both precise and diffuse. It suits placements close to listeners, reducing the impression of a point source without losing effect localisation. The series uses frequency- and time-domain analysis to achieve smoother response across a wide listening window and a more coherent sound field off axis.
Crossover and timbre matching
The Phase-Focused Crossover operates at 2.0 kHz and is optimised for wall mounting. Its goal is to retain the sonic character of the other M Series models so transitions between front and surround channels remain coherent.
Installation and dimensions
The cabinet measures 19.5 x 20 x 12.2 cm and weighs 2.9 kg per speaker. Integrated rear mounting hardware simplifies installation and the compact profile suits side or rear walls.
Construction and finishes
The sealed enclosure avoids port noise and remains controlled close to a wall. Gold-plated terminals accept bare cable or banana plugs. Available in Black Satin or White Satin.