Transcription of JBL PROFESSIONAL
1 102 JBL PROFESSIONAL THIELE SMALL LOW FREQUENCY DRIVER PARAMETERS AND DEFINITIONS November 3, 2008 Page 1 of 6 NOTE: The Parameters marked with an asterisk(*) are the minimum set required for a complete low-frequency system design.. SMALL SIGNAL PARAMETER DESCRIPTION UNITS *fs Resonance frequency of driver in free-air hertz *Qts Total Q of driver at fs including all driver loss mechanisms dimensionless *Eff Reference efficiency no (half-space acoustic load)
2 % Volume of air having same acoustic compliance as driver suspension cubic feet Qes Q of driver as fs considering electromagnetic damping only dimensionless Qms Q of driver as fs considering mechanical loss mechanisms only dimensionless (non-elctromagnetic) Le Voice coil inductance mH LARGE SIGNAL PARAMETER DESCRIPTION UNITS *Pe (Max) Thermally-limited maximum electrical input power watts Xmax Peak linear displacement of driver diaphragm millimeters SD Effective projected surface area of driver diaphragm square meters *VD Peak displacement volume of driver diaphragm(0 to peak)
3 Cubic inches *RE dc resistance of driver voice coil ohms PARAMETER DESCRIPTION UNITS Dia Piston diameter inches BL BL Product N/A Mms Effective moving mass grams flux Flux density tesla JBL PROFESSIONALTHIELE SMALL LOW FREQUENCY DRIVERPARAMETERS AND DEFINITIONS April 2, 2012 Page 2 of 6 MODELFSQTSQMS QESVAS EFF PE XMAX RELESDBLMMS 1207 1507
4 , 50 100 3005 QESVAS EFF PE XMAX RELESDBLMMS FLUX103 JBL PROFESSIONALTHIELE SMALL LOW FREQUENCY DRIVERPARAMETERS AND DEFINITIONS April 2, 2012 Page 3 of 6 MODEL FSQTS QMS QES VAS EFF PE XMAX RELESDBL MMS 100 3507
5 FSQTS QMS QES VAS EFF PE XMAX RELESDBL MMS FLUX104 JBL PROFESSIONALTHIELE SMALL LOW FREQUENCY DRIVERPARAMETERS AND DEFINITIONS April 2, 2012 Page 4 of 6 MODELFSQTSQMSQESVAS EFFPE XMAX RELESDBLMMS 100 100 EFFPE XMAX RELESDBLMMS FLUX105 JBL PROFESSIONALTHIELE SMALL LOW FREQUENCY DRIVERPARAMETERS AND DEFINITIONS`
6 April 2, 2012 Page 5 of 6 MODELFSQTS QMS QES VAS EFFPE XMAX RELESDBLMMS
7 QMS QES VAS EFFPE XMAX RELESDBLMMS FLUX106 JBL PROFESSIONALTHIELE SMALL LOW FREQUENCY DRIVERPARAMETERS AND DEFINITIONS` April 2, 2012 Page 6 of 6 MODELFSQTS QMS QES VAS EFFPE XMAX RELESDBLMMS QMS QES VAS EFFPE XMAX RELESDBLMMS FLUX107
