Valve Amplification Company PA 100/100

The VAC PA100/100 is a single chassis wide-band low-feedback stereo amplifier conservatively rated at 100 watts per channel. 

The input circuit of the PA100/100 is derivative of the Williamson design, which was first published in England in 1947, and was the mainstay of the original high fidelity movement. Notable features of this circuit include a direct-coupled input to amplifier and phase splitter, resulting in low phase shift, and inherent precise balance of the phase splitter (if properly executed) at all frequencies and levels, resulting in excellent push-pull balance, stability, and low distortion. The output stage is derived from the renowned PA90C, featuring individually adjustable "fixed-bias" and partial-triode ("ultra-linear") operation. Premium parts are employed throughout, including 14 pound 22 section bifilar- wound ultra wideband output transformers, polypropylene and polystyrene signal capacitors, high current rectifiers, low ESR power supply, and proprietary wiring. The quality of parts and careful layout allows the use of very little feedback for high sonic purity and low distortion.

Includes extra tubes.  Out of the 4 green led's in front, one is only red.  Was told by VAC that this does not impact the performance.  Also there is a slight hum, not sure if this is a ground issue.  Barely noticeable.