darTZeel is a Swiss maker of quirky yet very high end electronics. darTZeel is a company that replaces the volume control moniker with the "pleasure control" to give you an idea how they keep a lighthearted outlook on the hobby of audiophilia.
darTZeel products are handbuilt in Geneva.
Notable darTZeel products include:
darTZeel NHB-18NS preamplifier
darTZeel NHB-458 monoblock amplifier
darTZeel CTH-8550 integrated amplifier
HomeTheaterReview.com has a review of the darTZeel NHB-18NS preamplifier.