20k is expensive even for a speaker amp. You can get some great speakers for that price.
About Orpheus: http://www.head-fi.org/t/697285/fs-sennheiser-he90-orpheus-electrostatic-headphone
Also: http://www.htforum.com/vb/showthread.php/165415-Sennheiser-Orpheus-HE90-HeadAmp-Aristaeus?highlight=orpheus
R$ 28,000 =~ $12,000
Lolz..to much money for me..even my rig is almost to expensive to..its at the limit of my budget... More i couldnt and wouldnt spend on audio for ur ears..next year dec in my new house i will be in the market for a speaker rig then..already know i want some mark logan electrostatic speakers, new or second hand..and then let BCA built me an amp to drive them
damn..this thread is starting to sound as summit fi again..lolz..better talk about affordable good sounding stuff again..or else the moderators wont be happy