
S T U D I O D R I V E R M R - 4 4
D E S C R I P T I O N
Four Inch Aluminum Cone Midwoofer  | 
  | 
Recommended frequency range  | 160 Hz - 8 kHz  | 
M E C H A N I C A L PA R A M E T E R S | 
  | 
Normal Power Handling  | 50W rms  | 
Fs  | 78.0 Hz  | 
Qms  | 2.74  | 
Vas  | 2.5 Liters  | 
Cms  | 0.78 mm/N  | 
Mms  | 5.3 grams  | 
Rms  | 0.950 kg/sec  | 
Xmax  | 5 mm  | 
Sd  | 48.0 sq.cm  | 
Dia  | 7.8 cm  | 
ELECTRICAL PA R A M E T E R S | 
  | 
Qes  | 0.5  | 
Re  | 3.4 ohms  | 
Le  | .24 mH [@ 1kHz]  | 
Z  | 4.0 ohms  | 
BL  | 4.2 Tm  | 
C O M B I N AT I O N PA R A M E T E R S  | 
  | 
Qts  | 0.42  | 
no  | 0.191%  | 
Sens  | 85 dB [1 Watt / 1 meter]  | 
M O U N T I N G PA R A M E T E R S
Mounting Diameter  | 3.5”  | 
Mounting Depth  | 2.115”  | 
3
R E T U R N T O C O N T E N T S