Sandcastle 7.2


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Designed by: Eric Bartos

Goals

  • 7.2 surround sound system for enjoyment and the occasional mix
  • +/- 4dB response
  • active crossover

Key Features

  • F3 of 38Hz on surround speakers (before crossover between subwoofer)
  • F3 of 34Hz on center speaker (before crossover between subwoofer)
  • F3 of 24Hz on subwoofers
  • +/- 4dB from 50Hz to 21kHz on surround speakers
  • +/- 4dB from 47Hz to 21kHz on center speaker
  • +/- 2dB from 25Hz to 200Hz on subwoofer
  • center speaker has active/passive crossover system
  • 1/2″ birch ply and 1/2″ MDF construction for center speaker and surround speakers
  • 1/2″ birch ply and 3/4″ MDF construction for subwoofers
  • BSS Blu-100 & BSS Blu-BoB for DSP

Drivers

  • Woofer: Dayton Audio RS225-8
  • Tweeter: Seas Prestige 19TFF1
  • Midrange (Center speaker only): Dayton Audio RS52AN-8
  • Subwoofer: Eminence LAB12-C

Frequency Response

Surround speakers

Surround Overall 60db range

Surround Integrated Response

surround integrated 40

Center Speaker

center response 60.png

Center Integrated Response

center integrated 40

Subwoofer

sub response 60

Sandcastle glossy

Sandcastle Research Paper

Sandcastle Final Testing

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