Art Audio Conductor Line Level Preamp

  The Conductor preamp is a hefty device with a chromed front plate and five  knobs on the front panel.   The first one powers it on, the second raises the gain -- handy when listening to headphones -- the third manages the volume (this and mute are available from a remote), the fourth selects inputs and the fifth assigns the source for the tape outputs. There is an outstanding, built in headphone amp. On the back we see a row of inputs and outputs; to the far left is a pair labeled phono.  The Conductor does not have an internal phono stage. The phono input is a simple line level but aligns to “Phono” on the front panel.  There are 5 line inputs plus two tape loops and two variable preamp out making it easy to attach a subwoofer. There also is a heat sink - all voltages are stabilized. Inside we see several specialized PCBs. Three larger ones are horizontally mounted, with the amplifying circuitry on them, a big one for the power supply and a smaller one for the motor-driven pot. A v