Those familiar know how great and neutral these sound, but with the upgrades a new dimension of resolution has been achieved. Musicap bypass caps in the output stage. Other bypass caps added in both the phono stage and line stage. The On/Off switch has been taken out of the circuit. So it is always on when plugged in.
For LP record enthusiast, this unit has a first rate phono section for both MM and MC cartridges.
I do not have the manual. But it comes with original box and packing. This includes two options: 1. Pedestals for shelf mounting that gives the unit an upward slant for ease of operation. These simply fit over the normal rubber feet attached to the bottom of the unit. 2. An adaptor for rack mounting.