Guitar Bass Pro Audio Custom / OEM
 
APT:50    
SPECIFICATION  
Throat Size 1", 25.4mm
Nominal Impedance* 8 ohms
Power Rating** 45W @ 3.5kHz, 85Wrms @5kHz
 
 
Resonance 2.5kHz
Usable Frequency Range 3.5Hz - 20kHz
Sensitivity*** 105dB
Magnet Weight 7.75oz, 0.22kg
Voice Coil Diameter 1.0" / 25.4mm
   
THIELE & SMALL PARAMETERS  
DC Resistance (Re) 6.3

Download PDF Spec Sheet

 

Coil Inductance (Le) 1.5mH
   
   
MOUNTING INFORMATION  
Overall Diameter 2.75", 70mm
Mounting Holes Diameter
Mounting Holes B.C. D.  
Mounting Thread Use Apt Horn or Adaptor  
Depth 1.57", 40mm  
Weight 1.5 lbs, 682 kg  
   
MATERIALS OF CONSTRUCTION    
Diaphragm Material Phenolic  
Magnet Compostion Ferrite    
     
FOOTNOTES    

*

Please consult www.eminence.com for specifications of models with alternative impedances.

** Multiple units exceed published rating evaluated under AES noise source and test standard while mounted on the H290 or H290S horn in a non-temperature controlled environment.
***

The average on axis output across the usable frequency range when applying 1W/1m into the nominal impedance, i.e. 2.83V/8Ω, 4V/16Ω.  Eminence response curves are measured under the following conditions:  All speakers are tested at 1W/1m using a variety of test set-ups for the appropriate impedance | LMS using 0.25" supplied microphone (software calibrated) mounted 1m from wall/baffle | 2ft x 2ft baffle is built into the wall with horn front mounted | Carver PM-120 amplifier | 2700ft3 chamber with fiberglass on all six surfaces (three with custom-made wedges).