Consider the TT's volume control. It is a based on a ladder of precision resistors and a network of Panasonic relays (hermetically sealed with thorium contacts) to control the steps. As Kevin says, "Who does that?" Very, very few manufacturers, at least at this price point.
InPol (Inseguitore Pompa Lineare - Linear Pump Follower) is a Pathos patented system that allows for much greater output in pure Class A. This circuit design uses a single solid-state component in follower configuration, with a high-current gain and unity voltage gain together.
The tube amplifier amplifies the input signal voltage, and InPol supplies the current to drive the loudspeakers without any further amplification. This means you're listening to tubes but because of a low output impedance and the InPol circuit, the amplifier offers the amplifier offers effortless tube glory while achieving a higher damping factor than a tube amplifier. Think of the directness of an SET sound without all the fussiness with speakers.