I met Klaus at the Montreal show and thought he put quite a bit of effort in his room as compared to many others who just threw their gear into theor room and hoped for the best. Klaus really did a nice job given the space he had to work with. As to his gear I was impressed especially at their pricepoints!
I too questioned the transformer in his "passive" preamp. Was informed that a much smaller version would be in the final product. Never got a chance to hear the passive but did enjoy the Tempest, Stratos and his new 110 w/ch amp the Khartago. Was quite suprised at the accuracy of his speakers and can attest that he puts a nice little package together including cables - volume discount of sorts in a 1 stop shopping trip! I can easily see why he has such a devout following as his passion for the science and art of audio translates into great products. Are there better out there - sure there are, but not a helluva lot if any at his pricepoints!!! He needs to start thinking about an integrated!
He's a trip to say the least...