Up for offer is a pair of stunning Primaluna Prologue mono blocks. These have been used once a week in for about hours. I am the original owner and have the original shipping boxes. The condition is excellent. They arent flawless but you or anyone else wont notice any imperfections. They are stunning sounding amps that have a build quality that is seriously impressive. They have been nearly bullet proof. One KT88 went out a few years ago. Thats it. I am only selling because I need more efficient amps as my listening room is being moved off the grid. If there is a better sounding amp/amps for what Im asking for these, I am not aware of them. These amps have some upgrades which made a very good amps even better. These include: -Tung-Sol KT120s from Upscale Audio $800 worth!-GE long plate 12AX7s $300 (when you could get them)-Synergistic Research Orange fuses ($300+ crazy)-Aftermarket power cords from Audio Advisor Pangea ($200+) So we have $1600 plus in extras! Shipping is a $120 flat to cont. US. These are heavy amps, big iron!