The SD1sm attaches to wood and similar surfaces using included wood screws. Each SD1sm is designed for one channel of audio. An optional equalisation module optimises the SD1sm for use on wood surfaces. The SolidDrive utilises patent-pending dual-voice coil technology in an aluminium enclosure to transfer acoustic energy to any substrate with very high-powered neodymium magnets and dual symmetrically opposed motors to convert audio signals into powerful vibrations. Those vibrations are transferred into solid surfaces through direct contact. High-quality, full-range sound is then radiated from the entire surface with a frequency response of 60 Hz to 15 kHz. The symmetrically opposed neodymium magnets and specifically engineered mounting hardware results in hidden planar-source acoustics. The result is acoustical uniformity throughout the listening space.

• Manufacturer's Category: The Original SolidDrive
• Height: 2.06 in / 52.32 mm
• Width/Diameter: 2.3 in / 58.42 mm
• Shipping Weight: 1.45 lbs / 0.66 kg
• Carton Height: 5.5 in / 139.7 mm
• Carton Length: 5.25 in / 133.35 mm
• Carton Width: 5.25 in / 133.35 mm
• Certifications: CE, RoHS, UL1480A, UL2043
• Enclosure Properties: Anodised Aluminium
• Optional Accessories: Titanium Heat Sink (SD1-HS-TI)|Passive Equalisation Module - Wood/Surface Mount (PEM-W)|Junction Box (AC-JB10-XFMR or AC-JB20-XFMR)
• Source Inputs: Wire Leads
• Coverage Angle (ñ6dB @ 2kHz): 120ø
• Frequency Response (ñ 10 dB): 60 Hz - 15 kHz Nominal w/o EQ
• Frequency Response (ñ 3 dB): 80 Hz - 10 kHz Nominal w/o EQ
• Max. Continuous Power RMS: 30 W
• Max. Program Power: 100 W w/ 100 Hz 12 dB octave high-pass
• Minimum Impedance (ê Ohms): 8 ê
• Nominal Impedance (ê Ohms): 8 ê
• Sensitivity dB @ 1W/1M: 73.5 dB
• Sensitivity dB @ 2.83V/1M: 70 - 75 dB