The Spatial Audio M4’s are absolutely the best-sounding speakers I’ve ever heard in my dedicated listening room.
— Bruce Kinch - Positive-Feedback.com

The Spatial M4 has already achieved a large and enthusiastic following among serious listeners around the world since its introduction in 2015. The purpose of the M4 was to act as a miniaturized version of the M3 for use in smaller rooms. Its high performance level and small footprint are unique for an open baffle speaker. High sensitivity and very high output offer an effective solution in a wide range of applications. Spatial’s award-winning “Controlled Directivity” design greatly reduces room interaction issues that plague conventional speakers, so great sound can be achieved in rooms with poor acoustic properties. Class leading transparency and lack of boxy colorations propel the M4 well ahead of its competitors.

And so it goes. Whilst the M4’s soundstage is nothing short of enormous compared to the KEF LS50 or the Zu Omen, less sound spills to the right and off the balcony and to the left towards the reflective nightmare of the kitchen’s hard surfaces.
— John Darko - Digital Audio Review

M4 Turbo S Specifications

Type: 2-way, dynamic, open baffle design with Controlled Directivity

Drivers: Two 12 inch paper composite mid/woofers,

One coaxially mounted 1 inch compression driver

Frequency response: 40Hz - 20kHz +/- 3dB (in room)

SPATIAL-M4 black.jpg

Impedance: 4Ω Nominal

Sensitivity: 93 dB

Power Input: 8W or greater

Power Max: 200W RMS, 400W Program

Dimensions: 14.5W x 36T x 2.5D (42 x 19 x 14 Cartoned) 45lbs (55lbs shipping Wt)

Warranty: 20 year limited

Trial Return Period: 60 days

Factory direct Price: $1995 Pair