Faced with the difficult task of replacing a pair of Martin Logan ESLX electrostatics, Jack was able to guide me through a range of potential units. As a key problem at home was room interaction (despite much acoustic treatment) Jack arranged home demonstrations of several pairs till we arrived at the right ones – ATC SCM40As. Without Jack’s advice, it would never have even entered my head to replace my trusty Naim 250 with active speakers. An excellent result. Thank you for your patience, Jack! ...part 2... during the speaker selection process, it became clear my digital source was now a weak link. After an extended home demo, the Innuos Zenith was clearly getting me closer to the music and I had to have it .... a decision made easier with the sale of the Naim amp! - another result thanks to Jack.