Pinnacle Speakers, a unique family owned and operated business since 1976, designs and manufactures speakers famous for their sterling sound. Our products combine superior technologies with artistic expertise, supported by extended warranties, the longest of any major speaker brand. We are proud to provide a personal service philosophy that's unprecedented in these times, and in this highly automated world.

AC 550


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  • Video shielding allows placement near TV without interference

  • Continuous bevel cabinet styling

  • Hardware in place for easy wall-mount installation

  • 7 Year Transferable Warranty on parts & labor

  • Designed and Manufactured in the USA

System Type: 2-Way, 4th Order rear vented with patented Diaduct tuning

Component Drivers:

  • 3/4" liquid cooled soft dome tweeter

  • 5 1/4" fibercone woofer with rubber surround

Frequency Response: 45-21 kHz (+/- 3 dB)

Crossover Frequency: 2.5 kHz

Recommended Amplifier Power: 15-125 Watts RMS per channel

Operative Power Range: 5-75 Watts RMS Continuous, 225 Watts Peak

Sensitivity: 89 dB (2.83 Volts Pink Noise @ 1 Meter)

Nominal Impedance: 8 Ohms

Dimensions: 8 3/8" Wide x 13" High x 7 1/8" Deep

Finish: Premium Black or Cherry Vinyl

Weight: 12 lbs. each



I’ve enjoyed many years use out of these... Thank you for a great speaker! - Larry Claycomb

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