October 29, 2025

Two Ears and a Brain: Dr. Floyd Toole’s Legacy

1 hour 17 minutes

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Tony Stark once famously said, “We have a Hulk.” Brent and Dennis have a secret weapon much more powerful than that. We have a Floyd Toole! And this week, we sit in conversation with him about the release of the fourth edition of his legendary book, Sound Reproduction, and why it has a different subtitle this time: The Acoustics and Psychoacoustics of Loudspeakers, Rooms and Headphones.

📖 Get your copy of the 4th edition of Floyd Toole’s legendary book, Sound Reproduction: The Acoustics and Psychoacoustics of Loudspeakers, Rooms and Headphones with DISCOUNT CODE 25SMA4: https://www.routledge.com/Sound-Reproduction-The-Acoustics-and-Psychoacoustics-of-Loudspeakers-Rooms-and-Headphones/Toole-Olive-Welti/p/book/9781032761930

Brent’s audio projects:

💿 Plaid Pants, Brent’s latest album! https://cygerbutterworth.bandcamp.com/album/plaid-pants

💿 The Audiophile Society's Headphone Evaluation and Spatial Audio Test Album (engineered by Brent): https://theaudiophilesociety.com/collections/albums/products/the-audiophile-societys-headphone-evaluation-and-spatial-audio-test-album

💿 tics by Flip City, mixed by Brent: https://davidaaron4.bandcamp.com/album/tics

Further Reading:

Dr. Floyd Toole: An Oral History 1 on the SoundStage! Audiophile Podcast: https://www.soundstage.life/e/dr-floyd-toole-an-oral-history-1-two-ears-and-a-brain-transistors-rules-and-data/

Dr. Floyd Toole: An Oral History 2 on the SoundStage! Audiophile Podcast: https://www.soundstage.life/e/dr-floyd-toole-an-oral-history-2-ab-tests-bass-athena-brains-rooms-hearing-listening/

Read These 2 Books to Know More about Speakers than Most Hi-Fi Reviewers Do by the SoundStage! Network: https://youtu.be/YfIde7VTA7g?si=XjxdvEhY52wdzDvi

The Biggest Lie in Audio by Brent Butterworth: https://www.soundstagesolo.com/index.php/features/246-the-biggest-lie-in-audio

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