description

A tweeter designed with music in mind

Part of what makes the D15 excel at music reproduction is its unique tweeter design. Each speaker's 1" aluminum dome tweeter is offset from the midrange and bass drivers by half an inch. This helps create a wide listening "sweet spot," along with a lifelike soundstage.

The tweeters also benefit from Def Tech's 20/20 Wave Alignment Lens™ technology, which helps ensure ultra-clear highs that sound good no matter where you're sitting.

Musically rich midrange and bass

Each D15 sports two 5-1/4" Balanced Double Surround System (BDSS) carbon fiber woofers for accurate, punchy bass. Dual side-firing 8" side-firing passive radiators in each cabinet helps increase bass extension. 

Love listening from different spots around your room? Definitive Technology employs a Linear Response Waveguide™ on each 5-1/4" midrange driver for improved off-axis imaging compared to traditional driver designs.

You'll want a powerhouse amp to drive them

All of this design technology adds up to terrific sound — provided that you have enough power to properly drive them. The D15s have a nominal impedance of 8 ohms, and with an 85.5 dB sensitivity rating, they're real "gas-guzzlers." I highly recommend a high-output power amp or integrated amp to drive these speakers. 

Bi-amp or bi-wire for the best performance

Each tower comes equipped with two pairs of speaker inputs for bi-amping or bi-wiring

Product highlights:

• matched pair of floor-standing speakers for music or home theater
• 3-way, 4-driver design
• 1" aluminum dome tweeter with 20/20 Wave Alignment Lens for smooth, clear highs
  • each tweeter is offset by 1/2" for improved stereo imaging and high-frequency performance
• 5-1/4" midrange driver with Balanced Dual Surround System™ (BDSS) technology for outstanding control and clarity
  • Linear Response Waveguide provides smooths off-axis frequency response and even sound dispersion
• dual 5-1/4" carbon fiber woofers for tight, clean bass
• dual opposing side-firing 8" passive radiators for increased bass extension
• frequency response: 48-22,000 Hz (-3dB)
• recommended amplifier power: 30-300 watts
• nominal impedance: 8 ohms
• sensitivity: 85.5 dB
  • high-current amplification from a quality power amp or integrated amplifier is recommended for best performance
• high-gloss lacquer finish with an attractive extruded aluminum front baffle
• dual sets of binding post speaker terminals allow bi-amping or bi-wiring
• removable magnetic cloth grilles
• 9-1/16"W x 40-1/4"H x 12-3/4"D (each)