The King Daddy is a straightfoward rock and roll amp. This original circuit features two 12AX7 gain stages that feed our unique combination of a 12AU7 cathodyne phase inverter with an EF86 driver. Output is powered by a pair of cathode biased 6973s. Controls include Treble, Bass and our new Boost knob. This control allows the player boost mid frequencies or back them out for a more scooped tone. Two Volume knobs set the overall output level and overdrive. Volume 1 controls the output of the first gain stage. Roll it down for some crisp cleans. Vol 2 is the VarioDyne control.
The VarioDyne is our take on power reduction through voltage control. Unlike similar methods that only manipulate DC voltages, the VarioDyne also controls the AC signal voltages coming into the reduced power stages. Our approach eliminates the need for an additional Master / Drive pot by reducing the input signal to suit the new DC operating point. We do this without reducing the preamp DC voltages to maintain a smooth overdrive. The VarioDyne is great for matching stage volume to a specific venue, dropping the output for the studio or even playing at home. Just turn the Volume 2 knob to adjust the power output while maintaining the amp's character and tone. Simple and effective.
A variety of Eminence speakers can be paired with the King Daddy. The sample clips were recorded with a Private Jack, a favorite of ours and highly recommended.
