Martin Logan Motion SML Slim Speaker $629.00 Martin Logan Motion SML Slim Speaker. Martin Logan’s SML is a Wall mounted LRC/Surround Speaker has an advanced resolution Folded Motion tweeter with outstanding low moving mass for extended high frequency response. It is suitable to mount on the wall or table top stand to match with a flat screen TV. The narrow depth cabinet just under 2” thick is available in a classy black or white finishes housing 2-4 inch active midrange/woofers, 2-4 inch passive radiators and a folded Motion tweeter. Wall Brackets and Table Top Stand included. Frequency Response: 110–25,000 Hz ± 3 dB Sensitivity: 90 dB/2.83 volts/meter Impedance: 4 Ohms. Compatible with 4, 6 or 8 ohm rated amplifiers. Recommended Amplifier Power: 20-140 watts per channel Dimensions HxWxD: 25.3” x 6.4” x 1.83” ” Weight: 6.5 lbs each Price: $629 each. High Gloss Black Trim or High Gloss White Trim.