To start with let’s see that Yamaha significantly loses its opponent in terms of power. Yamaha A-S1100 has just 90W compared to 300W (8 Ohms) from Peachtree Audio nova300. The transformer has a considerable size and is mounted in a separate shielded unit. Four “barrels” of capacitors with a capacity of 18,000 microfarads were installed. The design is symmetrical, the power source is located in the middle, power amplifiers are symmetrical to the left and right. The manufacturer declares "Yamaha developed a unique technology of symmetrical power amplification with" floating "power supplies." The body is massive, tough and stable.
The DAC included with all Nova300s is an overbuilt ES9018K2M SABRE32 chip, decoding everything from 32bit/384kHz audio up to 5.6DSD. The source inputs are many. Two USB, of which one is solely dedicated to intelligently sync with Apple products. From there a single digital coax, followed by two digital optical inputs. On the analog side, a processor loop, and one single set of RCAs that double as both auxiliary and home theater pass-through. A moving magnet phono-stage with ground is included, which may also double as a second RCA line level input when switched to that mode via its dedicated front fascia input selector.
The Yamaha A-S1100 is better integrated amplifier in this comparison. Check Yamaha A-S1100 price