Episode 32 All About That Bass

This episode of the Sound of Design explores the world of subwoofers. The hosts discuss the difference between subwoofers and other speakers, emphasizing the importance of room pressurization for a full range sound. They delve into the size and drivers of subwoofers, explaining how larger drivers can produce lower frequencies. The conversation also covers the distinction between active and passive subwoofers, as well as various designs such as ported, sealed, and isobaric subwoofers. The hosts touch on in-ceiling and in-wall subwoofers, force canceling subwoofers, and subwoofers for outdoor use. Finally, they explain the purpose of the crossover knob on active subwoofers. In this episode, Mark and Daniel discuss the importance of utilizing crossovers and multiple subwoofers to enhance the audio experience. They also explore the concept of adjusting phase for multiple subwoofers and the impact it has on sound quality. The placement of subwoofers in a room is another crucial factor that affects bass performance. Finally, they delve into the number of subwoofers to use and how it can significantly improve the overall audio system. Takeaways

• Subwoofers are essential for playing back lower frequencies and achieving a full range sound.
• The size and design of subwoofers impact their ability to move air and produce bass.
• Active subwoofers have built-in amplifiers, while passive subwoofers require an external amplifier.
• Different subwoofer designs, such as ported, sealed, and isobaric, offer unique benefits and performance characteristics.
• Consider the size of your room and your desired bass experience when choosing a subwoofer. Utilizing crossovers and multiple subwoofers can enhance the audio experience by allowing for better bass management and improved sound quality.
• Adjusting the phase of multiple subwoofers is essential to prevent cancellation and ensure optimal sound reproduction.
• Proper placement of subwoofers in a room is crucial for achieving balanced bass response and avoiding unwanted reflections.
• Using multiple subwoofers can provide better coverage and headroom, resulting in a more immersive audio experience.

Chapters 00:00Introduction to Subwoofers 01:26Difference between Subwoofers and Other Speakers 04:29Size and Drivers of Subwoofers 07:06Active and Passive Subwoofers 09:01Size of Subwoofers and Bass Frequencies 11:21Designs of Subwoofers: Ported, Sealed, and Isobaric 13:39In-Ceiling and In-Wall Subwoofers 16:06Force Canceling Subwoofers 24:15Knobs on Active Subwoofers: Crossover 28:30Utilizing Crossovers and Multiple Subwoofers 31:18Adjusting Phase for Multiple Subwoofers 36:36Placement of Subwoofers in a Room 39:43Number of Subwoofers to Use 51:32Favorite Subwoofer Demos