I am not sure if this is the one, but I do recall there is this amp with so called "marketing strategy" but in fact having great fear of being technically(to the price ratio?) challenged. Good stuff last a decade, with praise from peoples. Let’s get back to the topic, so this secret amp seems to have successfully become a forever secret from peoples even knowing the existence of it?   Not! Long live the secret amp! Some user review with similar priced product would be very much beneficial for newbie like us.  

looks like the buyers have also signed a "confidentiality agreement"? nobody seems wanna expose the secrets, like fear a lawsuit?

hmmm.. heck with the suit or anything confidential, i no some n i dont know some, but heck is the builder's i.e right to give out info hence follow the builder. but rest assure it is powerfull amp

lets just some up, its warm agressive amp , some sort of like rsa products, it cn punch hd650 stock without a problem but its abit unrefined, but let it run in n it will shine, n nt to mention crosfeed functions

try it then u know, if takut just buy it used n nt satisfied just sell it surely some1 will buy it from u dun worry . as i seen 1 secret amp passed along to few lvl of peeps dy

pm slevin seint ask him nego kaw2 say fren2 maa he is selling , u shud try,

if you are looking for a more neutral amp, the cMoy is more probably suitable than the Secret amp.

what is opamp? LOL newbie here

u mau?