Watch: youtube.com/watch?v=IxrANfqmXDo Selling my partially built 18w Audio Note Interstage Monoblock Power Amplifier Pair (kit), also listed on audiogon. The buyer has to finish building the Audio Note himself/herself. The Audio Note has a simple circuit and easy to build though (see the finished product in the last two pictures here (pics taken from ankaudiokits online). This sale comes with a digital copy of the manual that can guide you through the building process. This sale does NOT include the four Shuguang 300B tubes. No 300B tubes are included. These kits originally sells for $4500. My loss is your gain. USA sale only. Lower 48 States. $200 Shipping fee. DESCRIPTION “It is becoming increasingly obvious that applying transformers at every stage of an amplifier yields a great benefit in sound quality, provided of course that the transformer in question is of an appropriate quality and design. Replacing any coupling capacitors with a well designed and correctly matched driver or interstage transformer yields an almost shocking improvement in sound and should be tried to fully understand what a good wide band transformer has to offer.” --Peter Qvortrup: Audio Note UK The Interstage MonoBlock amplifier pair are the finest expression of 300B SET either in parallel or single configuration ( 8w and 15w) The magic of these monoblocks is the fact that a 1:1 interstage transformer acts as the driver for the 300b(s) rather than capacitor coupling – the insane control of the mid range is immediately noticeable along with the over all authority of the amps – If you are already a 300B fan then the interstages will take you to the next level of audiophile nirvana! The ANK Interstage Monoblock amplifier is our highest and most extreme expression of Single Ended Amplification reserved only for the true connoisseur audiophile. The interstage transformer design style is currently used on Audio Note’s top of the line On Gaku 211 amplifiers. The unique design style makes use of an interstage transformer on each channel – rather than having an additional tube driver stage, the interstage transformer takes over this task for ultimate authority! These amplifiers provides a level or realism and detail that you may not have experienced.