The cathode current is only 0.15 mA, but the preamplifier delivers ... of having a unit with a vacuum tube on show. Still, this is a simple enough design which takes few resources to build ...

It was a cold January Saturday night in Chicago and we had big plans. Buddy Guy’s Legends bar was packed. We setup directly under one of the PA speakers less than 15′ from the stage.

First made in 1959, this is the best-selling tube amplifier of all time ... which reduced distortion with its incredibly efficient design whereby the signal gets recycled through the output ...

Their design allows for bi-amping configurations ... Pricing & Availability: The C55 Solid State Preamplifier and C2800 Vacuum Tube Preamplifier are available via authorised McIntosh dealers.