[frisiviti]

Just picked up one of these the other day- had to go through alot of trouble to find one, and even sold my Beyer T1 for it.  I have searched everywhere for one for years and was so happy one finally came up.  It did not come with the impedancer, but still seems to do extremely well with my DT990.  
 
I haven't had much listening time yet, but I also have a Bottlehead Crack to compare it to.  First impression is that this amp is extremely powerful.  Bass is very impactful and tight.  
 
There doesn't seem to be very much information on this amp.  How do I get the most out of it?  Any headphones that are an excellent match for the amp?
 
(Click for larger image)
 

 

[CDWMcInSpots]

[...] There doesn't seem to be very much information on this amp.  How do I get the most out of it?  Any headphones that are an excellent match for the amp?
[...]

 
I collected some links in post #5 in the Norwegian thread about this product. You can use Google Translate if neccessary.

 

[rkvfather]

visit our website - its place you find all information our RKV 2 and much more describtions our other amps ... go: www.audiovalve.info

- thx and nice weekend, Helmut