• Skip to primary navigation
  • Skip to main content
Ken Schaffer | What's the Frequency?

Ken Schaffer | What's the Frequency?

Official website of Ken Schaffer

  • HOME
  • PROFILES
    • The New Yorker:
      Opening Windows
    • The Most Interesting Man in the World
    • The New York Times:
      I Want My MTV
    • PBS.org:
      How Ken Schaffer’s TV2Me Will Change Television Forever
    • WTFK:
      Kenny Schaffer Breaks Radio Silence!
    • People Magazine:
      Rock Wizard
    • Wired Magazine:
      Remote Controller
  • INVENTIONS
    • The Wireless Guitar ➤
      • Guitar Player:
        Testing Ken Schaffer’s Wireless Guitar
      • Guitar World:
        Between Rock and Outer Space
      • Secrets of AC/DC’s Back In Black
      • The SVDS on Wikipedia
    • TV From Space ➤
      • Esquire Magazine:
        Satellite TV Master
      • Advertising Age:
        World TV
      • Washington Post:
        Sonic Boom
      • The New York Times:
        Columbia Spies
      • Journal of Commerce:
        Satellite Telephones
    • TV2Me ➤
      • The New York Times:
        Upstart Goes Up Against an Established Product and Holds Its Own
      • Electrical Engineering Times:
        New Technology TV2Me® Enables Live Worldwide Video Roaming
      • A Letter From Sting
    • The Secret of Angus Young’s Tone?
    • The Schaffer Replica™ ➤
      • The Schaffer Replica™
      • The Schaffer Replica™ History
      • The Schaffer Replica™:
        A trip to Vancouver, Part 1
      • The Schaffer Replica™:
        A trip to Vancouver, Part 2
  • PROJECTS
    • The Discovery Channel:
      How it Got Discovered
    • Boris Grebenshikov ➤
      • Boston Globe:
        From Russia With Rock
      • An Unwanted Reprise Riles a Soviet Rocker
    • Journal “Shtab Kvartira” (Moscow):
      “Kenny”
    • Money Magazine:
      Capitalizing On Glasnost
  • MISCHIEF
    • Who’s the Frequency’s Kenneth?
    • What’s the Frequency, Kenneth?
    • KS Debuts At The Metropolitan Opera
    • The New York Times:
      The Message Is the Massage
    • Space Shuttle Columbia
    • The Russian Butterfly
    • The Village Voice:
      Sounds That Stimulate
    • Let’s Piss Off on Wireless
    • Dangerous Minds
  • CONTACT
  • Show Search
Hide Search

The Secret of Angus Young’s Guitar Sound

Guitar Player Magazine | By Michael Molenda

Guitar Player

Did a tone-obsessed fan, a seminal ’70s inventor, and a GP interview crack the code of the classic Angus Young tone?

We’ve been following this story ever since I received an email from Ken Schaffer, the inventor of the ’70s wireless guitar system, the Schaffer-Vega Diversity System.

Could it be that a tone freak really pieced together the tonal secret of Angus Young’s Back in Black guitar sound? Is it true that an interview in Guitar Player helped unlock the recipe? How does a wireless system fit in?

Well, here’s some data from Schaffer’s original email to me:

“I wonder if you’re familiar with an extraordinary fellow named Fil ‘SoloDallas’ Olivieri? There is a 30 year long story here, filled with love, devotion, perseverance, insanity, talent and obsession. For me, it started a couple of years ago when I was quietly minding my own business and got a long, timid, tentative e-mail from Fil, who spent 30 years searching for “the secret” of Angus Young’s guitar sound, most specifically on Back in Black and other songs he considers AC/DC’s Golden Age.

“Fil contacted me to plead that I find him an SVDS unit — out of production since 1981 — which had just been suspected to be “the missing link” in getting Angus’s sound. Fil’s equipment chain (not a penny spared) duplicated what was known to be Angus’s equipment chain, from guitar to amp or DI box.

“It turned out that one of the contributors to Fil’s SoloDallas blog had come across an old interview in Guitar Player with Angus. Asked what special effects he used, Angus answered, ‘I don’t use any… I only use a Schaffer Vega wireless.’  That got Fil and his contributors to speculate, ‘Why would anybody use a wireless in the studio when he is only a few feet away from the amp?’

“The commitment Fil demonstrated in his letter convinced me to take the only two units I’d been saving 35 years as souvenirs and send them to him. He put my wireless in the chain and – Presto! — ‘Back in Black.’

“But that wasn’t enough. He then financed two of the best electrical engineers in Rome and Vienna to retro-engineer (with my passive blessing) the audio sections of the old wireless system and introduce The Schaffer Replica as a way for other players to capture Angus’s classic tone.

“I’m pretty freaked out and delighted.”

Guitar Player was recently sent one of Fil’s Schaffer Replicas, and while we are doing a comprehensive review for a future issue, we also did a little “box opening” video to introduce the pedal. There’s a brief audio demo included in the video, just to whet your (and our) appetite for more real-world evaluations and data.

Explore more

Contact

Footer

© 2002–2025 Ken Schaffer · All Rights Reserved

  • Home
  • Contact