We’ve taken the classic Archel 2.5 amp and pumped it up a notch. This amp still sports the Balanced Inputs along with a set of Unbalanced Inputs, plus a set of Unbalanced Preamp Outputs. The volume is controlled through a smooth Alps 10K pot. We upgraded the power supply to our redesigned 2watt source which runs through a pair of OPA1612 Opamps.