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Thiele-Small parameters

Feb 23, 2026 | 0 comments

From By Feel to By Formula: The Legends Who Transformed t...

Published by IWISTAO The Two Pioneers Who Changed the Loudspeaker World and the Story Behind the “T/S Parameters” Today, any acoustic engineer designing a loudspeaker will skillfully open speaker design...

Dec 16, 2025 | 0 comments

Professional Guide to Sealed Loudspeaker Enclosure Design...

Published by IWISTAO After studying Part I, it should now be clear that the core issue in sealed enclosure design lies in the selection of enclosure air volume. Key Factors in...

Dec 10, 2025 | 0 comments

Professional Guide to Sealed Loudspeaker Enclosure Design...

Published by IWISTAO This article introduces a data-and-chart-based method for designing sealed loudspeaker enclosures. It can be regarded as a convenient and effective approach to sealed box design. In a...

Dec 01, 2025 | 0 comments

Understanding Key Loudspeaker Parameters(16): Effective F...

Published by IWISTAO The Effective Frequency Range of a loudspeaker is one of the most essential specifications for evaluating how fully and accurately it can reproduce audio signals. While parameters...

Nov 27, 2025 | 0 comments

Understanding Key Loudspeaker Parameters(13): Mechanical ...

Published by IWISTAO Mechanical Compliance (Cms) is one of the most important Thiele–Small parameters in loudspeaker engineering. Cms describes how easily the loudspeaker’s suspension system allows the cone to move....

Nov 26, 2025 | 0 comments

Understanding Key Loudspeaker Parameters(12): Electrical...

Published by IWISTAO The Electrical Q Factor (Qes) is one of the most important Thiele–Small parameters for predicting loudspeaker behavior, especially at low frequencies. While Qms describes mechanical damping, Qes...

Nov 24, 2025 | 0 comments

Understanding Key Loudspeaker Parameters(11): Mechanical ...

Published by IWISTAO The Mechanical Q Factor (Qms) is one of the essential Thiele–Small parameters describing the loudspeaker’s mechanical damping characteristics. While Qes represents electrical damping from the motor system,...

Nov 23, 2025 | 0 comments

Understanding Key Loudspeaker Parameters(7):Equivalent Mo...

Published by IWISTAO In loudspeaker engineering, Equivalent Moving Mass — often expressed as Mms or Mo — is one of the most influential Thiele–Small parameters. It represents the total mass...

Nov 21, 2025 | 0 comments

Understanding Key Loudspeaker Parameters(9): Force Factor...

Published by IWISTAO Among all Thiele–Small parameters, the Force Factor (Bl) plays one of the most crucial roles in determining a loudspeaker’s motor strength and cone control. Often called the...

Nov 19, 2025 | 0 comments

Understanding Key Loudspeaker Parameters(8): Effective Pi...

Published by IWISTAO Among all loudspeaker parameters, Sd (Effective Radiating Area) is one of the most fundamental. It defines how much air a speaker can move—directly determining bass output, efficiency,...

Nov 16, 2025 | 0 comments

Understanding Key Loudspeaker Parameters(5): Equivalent C...

Published by IWISTAO In loudspeaker design, few Thiele–Small parameters influence enclosure size and low-frequency performance as strongly as Vas. Short for Equivalent Compliance Volume, Vas connects the mechanical flexibility of the...

Nov 14, 2025 | 0 comments

Understanding Key Loudspeaker Parameters(4): Total Q Fact...

Published by IWISTAO Among all the Thiele–Small parameters that describe a loudspeaker’s behavior, Total Q Factor (Qts) is one of the most critical for determining how a speaker performs at...

Nov 09, 2025 | 0 comments

Understanding Key Loudspeaker Parameters(3): Resonant Fre...

Published by IWISTAO Among all loudspeaker parameters, resonance frequency (fo) is one of the most fundamental. It defines how the mechanical and electrical parts of a speaker behave together at...

Oct 21, 2025 | 0 comments

Resonance Characteristics Analysis and Formula Derivation...

Published by IWISTAO In loudspeaker design, the system composed of the speaker driver and the enclosure exhibits specific resonance characteristics. These resonance properties directly affect the low-frequency response and overall...