I installed these in my Cary Audio Nighthawk Headphone Amplifier. The original installed Op-amps were the AD825. The difference in sound quality with the Supreme Op-amps is absolutely astonishing. I have already rolled a few other regular op-amps in the Nighthawk, but nothing can compare to the Burson Supreme Op-amps. There is absolutely no need to roll op-amps any longer, the Supreme Op-amps will remain in this Amplifier forever.

It’s like I am hearing my music for the first time. Burson has done an amazing job of engineering and design with the Supreme Op-amps. All I can say is Thank You to all at Burson Audio for your excellent products.