Closed Subwoofer Box Equations Formulas Design Calculator Par Maximum Displacement Limited Linear Power Output

Low Frequency Enclosures - Car Audio - Home Theater Sound System

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Solving for maximum displacement limited linear power output.

Inputs:

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Conversions:

K₁ constant (K₁)

= 0

A_max constant (A_max)

= 0

Solution:

maximum displacement limited linear power output (P_ar) = NOT CALCULATED

Other Units:

Change Equation
Select to solve for a different unknown

constant

	constant
	speaker system total Q at f_c
	speaker total Q at f_s

efficiency bandwidth product

	efficiency bandwidth product
	speaker resonance frequency
	speaker electrical Q

system resonance frequency

	system resonance frequency
	speaker system total Q at f_c
	speaker resonance frequency
	speaker total Q at f_s

minus three decibel half power frequency

	minus three decibel half power frequency
	system resonance frequency

net internal box volume

	net box internal volume
	air volume with same acoustic compliance as the speaker suspension
	constant

free air reference efficiency

	free air reference efficiency
	speaker resonance frequency
	air volume with same acoustic compliance as the speaker suspension
	speaker electrical Q

sound pressure level

	sound pressure level
	free air reference efficiency

maximum air volume displaced by cone excursion

	maximum air volume displaced by cone excursion
	cone effective radiation area
	cone peak linear displacement

cone effective radiation area

	cone effective radiation area
	cone diameter plus one third of surround

K ₁ constant

	K₁ constant
	air density
	system resonance frequency
	maximum air volume displaced by cone excursion
	sound speed in air

K₂ constant

	K₂ constant
	K₁ constant

A_max constant

maximum displacement limited linear power output

	maximum displacement limited linear power output
	K₁ constant
	A_max constant

required electrical input to achieve P_ar

	required electrical input to achieve P_ar
	maximum displacement limited linear power output
	free air reference efficiency

peak sound pressure level

	peak sound pressure level
	maximum speaker power input

References - Books:
1) Dickason, Vance. 1991. The Loudspeaker Design Cookbook. Audio Amateur Press. 4th ed.
2) Steele, Brian. 2002. The Subwoofer DIY Page v1.1. http://www.diysubwoofers.org.

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By Jimmy Raymond

Contact: aj@ajdesigner.com

Closed Sealed Subwoofer Box Equations Formulas Design Calculator

Conversions:

Solution:

Other Units: