Definitive Technology Dymension DM40

Product highlights:

• tower speaker with built-in 12″ powered subwoofer
• cloth grille-wrapped enclosure
• adjustable speaker feet include spikes and pads for a range of flooring surfaces
• Dolby Atmos® and DTS:X™ ready with optional Definitive Technology DM90 add-on height module (sold separately)

Bipolar driver array:

• fully balanced design — two identical sets of drivers for the front and rear:
  • 1″ aluminum oxide dome tweeter with Teteron (cloth) suspension for smooth, extended highs
  • dual 5-1/4″ BDSS mid/bass drivers
• Balanced Dual Surround System (BDSS) driver technology places rubber surrounds on both the outer and inner edges of each speaker cone for improved control and clarity
• Linear Response Waveguide reduces the woofer’s back wave for smoother midrange response

Built-in powered subwoofer:

• one 12″ active woofer
• two 12″ passive radiators increases the sound-radiating surface area for enhanced bass output
• patented Intelligent Bass Control provides precise bass level adjustments while maintaining accurate midrange tonal balance
• 400-watt built-in GaN FET amplifier offers high efficiency and better control over the woofer

Specs:

• frequency response: 28-23,000 Hz (-3dB)
• recommended amplifier power: 50-300 watts
• sensitivity: 90 dB
• impedance: 4 ohms

Connections:

• 5-way binding post connectors for main input
• additional posts with jumpers let you set rear-firing bipolar drivers to “balanced” or “forward-focused” sound profile
  • rear input lets you use a second amplifier for continuously variable rear level
• separate binding post inputs for optional DM90 height modules (not included)

Other info:

• dimensions (measured by Crutchfield): 11-5/16″W x 49-7/16″H x 17-5/16″D
• 83.1 lbs.
• warranty: 5 years speakers, 3 years electronics