- Nov 29, 2007
is their a way i can change the sound of this amp? i dont know much about op amps and what they are etc, anyone fill me in? Also i dont know if I can tell the difference between No amp and this amp with my Ultrasone Proline 750's.... They are 40 ohms and I am not sure if I need the power of the amp. btw i use it on low gain and the ultrasones are the only headphones im powering.