This generation of the 20 series has a greatly improved all-aluminium casework and extruded front panel to control resonance and stray electro-magnetic fields which can greatly reduce the fidelity threshold of a product.
You will be glad to hear high quality capacitors are used in the signal path which is uniquely tuned and short, the power supply path is PCB based( not cheap or easy but better )
Exposure have used cascode circuitry for the power supply which aides immunity.
This amp has Toshiba bipolar output transistors for superior dynamics and performance, once again the care taken regards this product extends as far as the choice of a single and every component !
You have a separate pre-amp output which gives you an upgrade path which is great
It has been designed and built to be Bi-wiring compatible (handy if you have super fat speaker cables or plugs or want your cables to be ready for Bi-Amping
This amp is rated at 75 watts per channel into 8 Ohms, that is a very conservative 75 watts and do not have the wool pulled over your eyes by some other brands who give you the 4 Ohms measurement which is normally close to twice what that amp is capable of into 8.