Ultra Tower (Piano Gloss Black)
THB
157700

Frequency Response / Acoustic Data: 

  • Rated bandwidth: 28 Hz-32 kHz (+/-3 dB). 
  • Nominal impedance: 8 ohms. 
  • Sensitivity: 88 dB (2.83V @ 1 meter full-space, 300-3kHz). 
  • Recommended amplifier power: 20-300 watts. 

Speaker Specs: 

  • Floor Standing Tower Loudspeaker 
  • Real black oak veneer and piano gloss black finish options 
  • Dual gold-plated 5-way binding posts 
  • 3.5" wide-flared rear-firing port 
  • Cloth grille with pin/cup retention system 
  • Elastomer screw-in feet - adjustable for level 
  • Spiked metal screw-in feet included - adjustable for level
  • Cabinet Dimensions: 45.6” (H) x 13.8” (W) x 16.5” (D) (without grille)
  • Overall Dimensions: 45.6” (H) x 13.8” (W) x 16.8” (D) (with grille)
  • Shipped Dimensions: 50.3" (H) X 21.3" (W) X 22.3" (D)
  • Weight Unboxed: 75.4 pounds
  • Shipped Weight: 86 pounds

Driver Specs: 

1” Aluminum Dome Tweeter: 

  • FEA-optimized diffuser for airy and unveiled presentation
  • Aluminum dome delivers exceptional transient response and exceptional stiffness/mass ratio

6.5” Midrange Drivers: 

  • Composite glass-fiber cone with excellent stiffness/mass ratio for high sensitivity and pistonic behavior beyond pass band
  • Aluminum shorting ring to reduce gap inductance, lower distortion, and enhance high frequency response
  • Cast aluminum basket to ensure precise alignment of critical components and additional heat-sinking capacity
  • Vented voice coil former to minimize air compression artifacts at high drive levels

8” Woofers: 

  • Aluminum shorting rings to reduce gap inductance and lower distortion 
  • Long stroke motor and suspension for high output 
  • Vented voice coil formers to minimize air compression artifacts at high drive levels 

Crossover & Cabinet Specs: 

Crossover: 

  • 3.5-way crossover with premium-grade capacitors, air-core inductors and heavy-trace printed circuit boards
  • Unique tapered midrange array miniimizes off-axis lobing and enhances radiated sound power into listening space
  • Top midrange-to-tweeter crossover: 2 kHz
  • Bottom midrange taper frequency: 700 Hz
  • Dual midrange-to-woofer crossover: 160 Hz

Cabinet: 

  • Separate sealed midrange enclosures minimize top-to-bottom wall dimensions and shift standing waves beyond the driver pass band, minimizing negative driver interaction and associated frequency response degradation
  • Non-parallel cabinet panels reduces axial standing waves within the cabinet, reducing frequency response coloration
  • Acoustically transparent and FEA optimized grilles, wedge-shaped front baffle and flush-mounted drivers all contribute to reduced edge diffraction and improved on-axis high frequency response
  • FEA-optimized bracing, 1" thick midrange/tweeter baffles and 1.5" thick woofer baffles eliminates structural resonances and ensures the cabinet remains acoustically inert for uncolored response even at the highest drive levels

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