"I would not use them with bright sounding or thin sounding cdp or speakers."
My assessment is good Class D amps like Wyred work quite well with brighter and or smaller or thinner sounding speakers, however the advantages and differences between the Class D and other amps may be less significant in these cases and there are other amps available for reasonable cost that can fit the bill as well.
Its when you are facing the choice between a big heavy, expensive, power guzzling Class A or Class A/B amp in order to optimally drive speakers that are power and current hungry that Class D provides the most clear benefit over other amp types.
My assessment is good Class D amps like Wyred work quite well with brighter and or smaller or thinner sounding speakers, however the advantages and differences between the Class D and other amps may be less significant in these cases and there are other amps available for reasonable cost that can fit the bill as well.
Its when you are facing the choice between a big heavy, expensive, power guzzling Class A or Class A/B amp in order to optimally drive speakers that are power and current hungry that Class D provides the most clear benefit over other amp types.