Why Aren’t Sound / Surface Transducers More Common?
Although sound / surface transducers have been around for at least 75 years, few have ever achieved commercial success. Those that were somewhat successful have been largely geared towards bass performance, yet are generally unable to reproduce much content below 30-40hz due to lack of mechanical excursion (what subwoofers are good at). Oftentimes, cheap units give off more of a “buzz” than they do a realistic bass frequency (Think of video game controllers with built-in shakers). Although good-quality bass transducers can be used effectively to supplement subwoofers at low volumes, realistic bass has to come from subwoofers – period.
What Makes SolidDrive Different, Then?
SolidDrive isn’t like the other sound transducers. Surface transducers aren’t just limited to bass – A well designed transducer can operate throughout most of the frequency range, but they aren’t well suited to extreme highs and lows. Instead of trying to force a surface transducer do something it isn’t good at, SolidDrive focuses on frequencies it can produce effectively – specifically, those from 60hz-15khz (the bulk of human hearing). The result? A sound transducer that’s surprisingly efficient, and actually sounds much like a traditional speaker.
SolidDrive is the world’s most advanced surface transducer thanks to original and patented technology. A patented axial shaft suspension with dual bearings keeps the drive stable and distortion-free in any mounting configuration – competing surface transducers are often limited to horizontal mounting. It gets surprisingly loud, too! Patented, dual opposing motors in a single drive enable surprising efficiency and high power handling. Even though SolidDrive can generate ample sound from a flat surface using as little as 5 to 15 watts, it can also be used in high-output applications with power levels up to 100 watts. Read more about this in our TECHNOLOGY section.
Although other “full-range” surface transducers exist, they suffer from poor equalization, limited mounting options, poor ventilation, and lack of installation accessories to correctly transfer sound to a solid surface. That’s why SolidDrive includes a full line of accessories for correct sound reproduction on most rigid and semi-rigid surfaces.
SolidDrive surface transducers offer three passive equalization modules – one for wood, drywall, and glass.
SolidDrive amplifiers have all three of these presets built in via an active EQ. For long-term or high-heat applications, oversized heat sinks are available.
Glass and wood SolidDrives couldn’t be simpler to install – The glass unit uses industrial-strength adhesive pads, while the wood SolidDrive is simply screwed in using four screws – mount them upside down, right side up, vertically, or diagonally – it doesn’t matter. For mounting to semi-rigid surfaces, the drywall SolidDrive utilizes a patented stud-bracket to give it the pressure it needs to correctly transfer acoustic energy.