Audio components are rated in terms of quality and price as follows:
CLASS A
Absolute top quality, regardless of price. Often hard to get
CLASS B
Quality approaches those of Class A but may lack the finesse. They are easier to source and are more affordable
CLASS C
Generally of good quality but are mass-produced to meet a price point. However, they are far superior to third-world "entry level" components and overall there is little compomise in selecting Class C items