Instruction Manual

Thiele Small Parameters
You can use the Thiele Small (T/S) parameters when designing custom enclosures for your speakers.
NOTE: Thiele/Small parameters may vary between samples, based on the environment and how much the
speaker has been used. These values are intended as a guide to help with enclosure design.
T/S Parameter 4 in. Speakers 6.5 in. Speakers 7.7 in. Speakers
Electrical Q factor (Q
es
) 1.80 1.05 0.7
Mechanical Q factor (Q
ms
) 4.40 4.80 3.6
Total Q factor (Q
ts
) 1.28 0.86 0.59
Resonance frequency (F
s
) 128 82 72
Equivalent air load (V
as
) 1.6 7.6 10.4
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