Prime Tower (Black Ash)
THB
72700

Frequency Response / Acoustic Data: 

  • Rated bandwidth: 30 Hz-25 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: 

  • Floor Standing Tower Loudspeaker
  • Black ash and piano gloss black finish options
  • Single set of 5-way binding posts
  • Dual 1.7” wide-flared rear-firing ports
  • Cloth grille with pin/cup retention system
  • Elastomer stick-on bumper feet (adds 3mm to height)
  • Spiked metal screw-in feet included - adjustable for level
  • Cabinet Dimensions: 36" (H) X 8" (W) X 11.1" (D)
  • Overall Dimensions: 36.6" (H) X 8" (W) X 11.6" (D) (includes grille and feet)
  • Shipped Dimensions: 41.3" (H) X 14.1" (W) X 17.3" (D)
  • Weight: 40.1 pounds
  • Shipped Weight: 46.3 pounds

Driver Specs: 

1” Aluminum Dome Tweeter: 

  • FEA-optimized diffuser for airy and unveiled presentation
  • Aluminum dome for exceptional transient response

4.5” Midrange Driver: 

  • Polypropylene cone for excellent stiffness/mass ratio and pistonic behavior
  • Aluminum shorting ring to reduce gap inductance, lower distortion, and enhance high frequency response
  • Cast ABS-fiberglass composite basket ensures precision component alignment and excellent thermal transfer
  • Vented voice coil former minimizes air compression artifacts

Dual 6.5” Woofers: 

  • Long stroke motor and suspension for high output
  • Polypropylene cone for excellent stiffness/mass ratio and pistonic behavior
  • Aluminum shorting ring to reduce gap inductance, lower distortion, and enhance high frequency response
  • Cast ABS-fiberglass composite basket ensures precision component alignment and excellent thermal transfer
  • Vented voice coil former minimizes air compression artifacts

Crossover & Cabinet Specs: 

Crossover: 

  • 3.5-way crossover with premium-grade capacitors, air-core inductors and heavy-trace printed circuit boards.
  • Tapered woofer array optimizes the transition to the midrange driver and reduces vertical axis lobing
  • Midrange-to-tweeter crossover: 2.1 kHz (12 dB/octave slopes)
  • Top woofer (Combined Woofer) to midrange crossover frequency: 350 Hz (12 dB/octave slopes).
  • Bottom woofer low pass frequency: 165 Hz (customized filter Q and slope)

Cabinet: 

  • Separate sealed midrange enclosure shifts standing waves beyond the driver pass band, improving sound quality
  • Separate woofer enclosures with optimized port tuning frequencies for smooth and accurate bass response
  • Acoustically transparent and FEA optimized grilles minimize diffraction
  • Chamfered front baffle and flush-mounted drivers reduce edge diffraction and improved on-axis high frequency response
  • FEA-optimized cabinet and bracing eliminates resonances

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