Ultra Surround (Piano Gloss Black)
THB
72700

Frequency Response / Acoustic Data: 

  • Rated bandwidth: 58 Hz-32 kHz (+/-3 dB). 
  • Nominal impedance: 8 ohms. 
  • Sensitivity: 87 dB (2.83V @ 1 meter full-space, 300-3kHz) 
  • Recommended amplifier power: 20-250 watts. 

Speaker Specs: 

  • Dual Baffle Surround Loudspeaker
  • Piano gloss black and real black oak veneer finish options
  • Dual independent gold-plated 5-way binding posts
  • Cloth grille with pin/cup retention system
  • Aluminum wall mounting bracket with safety catch feature to help prevent inadvertent removal
  • Elastomer stick-on bumper feet
  • Cabinet Dimensions: 14” (H) x 12.3” (W) x 6.9” (D)
  • Overall Dimensions: 14” (H) x 12.3” (W) x 7” (D) (with bracket)
  • Shipped Dimensions: 19" (H) x 22" (W) x 17" (D)
  • Weight: 18 pounds
  • Shipped Weight: 40 pounds

Driver Specs: 

1” Aluminum Dome Tweeter: 

  • Vertically aligned tweeter and midrange improves horizontal axis polar response, with reduced lobing and comb filtering 
  • FEA-optimized diffuser for airy and unveiled presentation 
  • Aluminum dome delivers exceptional transient response and exceptional stiffness/mass ratio 

5.5” Woofers: 

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

Crossover & Cabinet Specs: 

Crossover: 

  • 2-way crossover with premium-grade capacitors, air-core inductors and heavy-trace printed circuit boards
  • Dual isolated crossover networks allows for bipole, dipole or unique Duet mode
  • Crossover frequency and slopes optimized for excellent off-axis polar response, outstanding phase coherency, and total radiated sound power
  • Tweeter-to-woofer crossover: 2.0 kHz

Cabinet: 

  • 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

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