4 x 4 Stack Guitar Speaker Calculators

4 x 4 "stack" ~ calculator

4 x 4 stack

A dimension ratio of 1 : 1.618 : 0.618 provides cancellation of resonating frequencies inside the enclosure. The drivers should be identical and centered.

First enter driver parameters.

Then enter volume of enclosure to calculate performance specifications. If only Qms and Qts are known, press "Qts" button to calculate Qts. Qms and Qes are optional. Fs, Qts and Vas must be entered.

Driver	Parameters	Definition
Enter Fs :	Hz	The resonant frequency of the driver.
Enter Qms :		Q mechanical
Enter Qes :		Q electrical
Enter Qts :		The total Q of the driver.
Enter Vas :	liters	The volume of air with same compliance.

Estimate a volume for the enclosure in liters and enter volume of internal driver and parts. Consider the length, wide and wide when estimating. Enter volume of enclosure desired.

Enter Vdr :	liters	Volume of internal driver and parts
Enter V b :	liters	Estimate volume for the enclosure

Dimensions¹

Width =	cm
Height =	cm
Depth =	cm

Performance specifications

curve

Symbol	Value	Definition
Q =		Total Q of system.
Fdb =	Hz	Frequency at peak decibel.
Peak db =	db	Peak decibel at resonance.
F3 =	Hz	The "cut off " frequency at -3db.

¹The dimensions are "inside" measurements which are calculated to provide the enclosure volume needed.

4 x 4 "stack" ~ calculator

Dimensions1

Performance specifications

Dimensions¹