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Experience the power of deep, resonant bass with the Atlantic Technology SB-900, an entry-level subwoofer that delivers far beyond its price point. With our unique Clear Filter Technology (CFT), the SB-900 ensures detailed and musical accuracy, making it an ideal addition to any home theater or compact music system. Don't let the price fool you, the SB-900 is designed to provide a rich, immersive audio experience that will elevate your listening journey.

Type: Powered subwoofer, sealed enclosure

  • Bass Driver: 8” (203mm) long-throw composite cone
  • Features: 1.5-inch, vented aluminum voice coil, vented motor
  • Amplifier Feature: Continuous 40–220Hz crossover, 18dB/octave low pass output
  • Output Power: 125W RMS
  • Frequency Response: 32Hz – 250Hz ±3 dB
  • Low Level (line): 10k ohms
  • Peak Output: 103dB SPL into 1500 cubic Feet
  • Inputs: Variable low level stereo inputs and low level outputs
  • Controls: Absolute phase invert switch, Auto signal sensing
  • Dimensions w/ grilles(W x H x D): 11 x 13 x 13.125 in (279 x 330 x 333mm)
  • Weight (ea): 28lbs/12.7kg
  • Power Requirements: 110-120/220-240V, 50/60Hz

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Bass Performance Essentials

High-Value Performance

8" Bass Driver

The SB-900 offers a high-value audio solution, delivering premium sound quality that outperforms its price point. Experience the thrill of deep, resonant bass without breaking the bank.

Pure, Articulate Performance

Clear Filter Technology™ (CFT)

Atlantic’s exclusive Clear Filter Technology™ ensures clean, articulate performance. Enjoy detailed and accurate musical bass reproduction along with terrific special effects.

Detail-Oriented Sound

Musical Accuracy

The SB-900 is designed for detail and musical accuracy, avoiding the 'one-note boom' trap common in conventional subwoofers. Experience the difference with Atlantic Technology.

Outstanding Headroom and Output

High-Current Amplifier

Powered by a high-efficiency, high-current amplifier, the SB-900 offers exceptional driver control and cool thermal operation. This precision-matched and equalized amplifier ensures that your subwoofer performs at its best, delivering powerful, distortion-free bass.

Perfect for Any Setup

Compact and Versatile

Whether you're building a home theater or enhancing a compact music system, the SB-900's compact design makes it a versatile addition to any audio setup.

Companion to Soundbars

The SB-900 is the perfect companion for any home theater or soundbar, enhancing your audio experience with powerful, impactful bass.


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