[leo5111]

if so anyone know if they used same op amp or differnt one or what? thanx

 

[RickB]

As far as I know there is more than one manufacturer using Penguin Caffeine mint tins-- Headphonia is the one I bought from and they used the AD8397 and it sounds great with Grados.

Other manufacturers are probably using different op amps though.

 

[Elladan]

Considering the Penguin now, Leo? They seem really nice. The maker I know of is Penguin Amp Intl, at penguinamp.com. The Caffeine Ultra ($69) was out of stock until very recently; The Royal ($99) adds a bypass, which would be nice for a/b testing, but that's about all; both use the AD8397.

 

[HeadphoneAddict]

See what Blutarsky had to say about my Caffeine Pro in this mini meet report below.

http://www.head-fi.org/forums/f45/co...1/#post4515237