# @polkaudio on Instagram

- **Type:** Image
- **Original URL:** https://www.instagram.com/p/CkzK0LnvEmn
- **Gondola URL:** https://gondola.cc/posts/21738354-polkaudio-instagram
- **Thumbnail:** https://img.gondola.cc/tr:w-,h-,fo-auto/thumbnails/f8edeb365e.jpg
- **Posted:** 2022-11-10T23:51:26.000+00:00
- **Account Owner:** Polk Audio (@polkaudio) — https://gondola.cc/polkaudio

## Caption

👀 🔊 #50YearsOfPolk Throwback to 1985-1990 as a college upstart company begins to shake up the world of American hi-fi.

a) 1985, Stereo Dimensional Array (SDA) technology is born, one of Polk’s most important innovations to perfecting the soundstage; b) 1986, Polk issues first IPO on NASDAQ, four founders: Sandy Gross, Craig Georgi, Matt Polk, George Klopfer; c) 1990, RTA-15TL deep tower achieves outstanding imaging and low coloration. 

#PolkAudio

#GreatSoundForAll #ThrowbackThursday #TBT #HomeAudio #Speakers

## Stats

- **Views:** 0
- **Likes:** 568
- **Shares:** 0
- **Comments:** 17

## Tags

homeaudio, tbt, polkaudio, 50yearsofpolk, speakers, throwbackthursday, greatsoundforall

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