Grado labs
			 > Slusalice 
			 >  RA1
			
			 
			
			
		
		
			
	
		
		
		
		Opis
			RA1 se više ne proizvodi.
| Tranducer type | dynamic | |
| Operating principle | open air | |
| Frequency response | 20-20 | |
| SPL 1mV | 100 | |
| Normal impedance | 32ohms | |
| Driver matched db | .1 | 
 
             
						
